Mixed insecticides refer to two or three different insecticides, which have been researched and processed into a fixed-type mixed insecticide. Since its inception, it has indeed been used to control various pests in agricultural production. The important role is that it has the following main aspects:
1. Synergism: Pesticides will synergistically increase each other, especially those with different insecticidal mechanisms, and the synergy is more significant, thus improving the insecticidal control effect. How to judge the synergistic effect of insecticidal mixture; usually, some data are obtained through certain methods, and then calculated according to a certain formula. When the obtained figure is 1, it indicates that the two insecticides have no synergistic effect. It is only additive; the number of more than 1 indicates that it is synergistic. The larger the number is, the higher the efficiency is. The less than 1 is the reduction. That is to say, after the two pesticides are mixed, they are used separately. The effect is still low. Therefore, everyone usually judges the size of the number calculated by the experiment and shows the synergy. For example, beta-cypermethrin and malathion are mixed in a certain proportion, the number obtained by the cotton bollworm test is 219, and the number obtained by the peach aphid test is 47, indicating that the two insecticides have a significant synergistic effect. However, some pesticides may decompose in the presence of alkaline substances, such as organophosphorus insecticides, and if the agents mixed with them are alkaline, they will be reduced. So not all pesticides can be used together. At present, some farmers' friends still use a mixture of several insecticides when they are controlling pests. This is not appropriate. Pay special attention when using them.
2. Complementary advantages: The insecticidal speeds of the two insecticides are not the same. If they are properly mixed, they can complement each other. For example, pyrethroid insecticides have a fast insecticidal effect, while specific insecticides have a slow insecticidal rate. If the two are properly mixed, they can complement each other. For example, avermectin and beta-cypermethrin are mixed. The former is slow to kill insects. Faster, after mixing, it can speed up the insecticidal effect.
3. Expanding the insecticidal spectrum: Some insecticides have a good killing effect on lepidopteran pests, but they are not effective against mites. If they are mixed with insecticides or acaricides with strong acaricidal action, they can simultaneously control scales. Hymenoptera pests and acarid pests. One medicine and more treatment can save labor and time.
4. Delay pest resistance: Pyrethroid pesticides are more likely to cause pest resistance, such as cotton bollworm, if they are mixed with other pesticides, the pest resistance can be delayed or the resistance level is low. For example, the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences used 20% chrysanthemum emulsifiable concentrate (fenvalerate and malathion) and 20% fenvalerate to treat cotton bollworm separately. After 16 generations of continuous treatment, the level of resistance was used. It was found that the resistance of cotton bollworm treated with fenvalerate alone was 64.54 times higher than that of cotton bollworm treated with chrysanthemum emulsifiable concentrate, indicating that chrysanthemum emulsifiable concentrate significantly delayed the resistance of cotton bollworm.
5. Reduce the cost of prevention: Some pesticides are expensive and some are cheaper. If they are properly mixed, they not only have many of the above advantages, but also reduce the cost of prevention. For example, 50% pyridazole WP, imidacloprid has good insecticidal effect, but it is expensive. If it is mixed with cheap insecticide, it can be used on rice, not only to control rice planthopper, but also to control leafhopper. At the same time, it also reduces the cost of prevention.
In short, because of the many advantages of mixed pesticides, they have been welcomed by farmers and developed so rapidly. The following may also introduce some of the insecticidal mixtures currently used in production and the scope and methods of use, for reference by farmers.
Chrysanthemum mas cream: It is a mixture of fenvalerate and malathion. The appearance is light yellow to brown single-phase liquid, transparent, uniform, no delamination, no precipitation, good emulsifying property and stability, low toxicity to humans and animals, no irritation to the skin, but moderate stimulation to the conjunctiva . The control of wheat pests can be sprayed at more than 150 heads of wheat stems at the booting stage of wheat. At this time, the main control of wheat bifurcation, 20 to 30 ml of 20% emulsifiable concentrate per 667 m 2 is used to control wheat long tube mites at the wheat ear stage. Use 20~30ml per 667m2 to spray on water; control cotton pests should focus on the cotton bollworm generation, insect-resistant cotton mainly control the second and third generations of cotton bollworm, and use it when the larvae reach 5 heads, use 667 meters per 667 meters 20% emulsifiable oil 40~50ml, spray on water; control vegetable pests, aphids in the initial stage, cabbage caterpillars in the adult egg laying peak of about 1 week, larvae in the low age of every 667 m 2 with 20% emulsifiable oil 40~50 ml, Spray on water. Control the fruit tree peach small heartworm, apply the medicine when the egg rate reaches 1% in the egg hatching period, spray with 20% emulsifiable oil 600~1250 times, which can effectively prevent and control the larvae of the peach heartworm, and have certain ovicidal effect. Note: This agent can not be mixed with alkaline substances, and is poisonous to bees, silkworms and fish. It should be used when using. In addition, the agent has a stimulating effect on the eyes, and if it is accidentally splashed into the eyes, it should be rinsed with water immediately.
Chrysanthemum emulsifiable concentrate: It is a mixture of fenvalerate and chlorpyrifos. It is a brownish yellow oily liquid with good emulsifying properties and stability. It is low in toxicity to humans and animals, has no irritation to the skin, and has a stimulating effect on the conjunctiva. For the control of wheat pests, in the booting stage and the earing stage of wheat, the number of stalks is more than 150, and each 667 m 2 is sprayed with 20-40 ml of 20% emulsifiable concentrate; the control of cotton aphid is up to the rate of sorghum At 30%, use 20% emulsifiable concentrate 30~50 ml per 667 m 2 to control the cotton bollworm. In the initial period of egg hatching, use 20% emulsifiable concentrate 40~50 ml per 667 m 2 to spray on water; In the initial period of the wingless mites, 30% to 60 ml of 20% emulsifiable concentrate per 667 m 2 should be used to control the cabbage worms, about one week after the peak of adult spawning. The larvae are sprayed with 30% to 60 ml of 20% emulsifiable concentrate per 667 m 2 at the early age of the larvae. The control of the fruit tree peach larvae is sprayed with 20% emulsifiable concentrate 600~1250 times per 667 m2 in the egg hatching period. Note: It is required to spray evenly and thoughtfully; it can not be mixed with the quality of alkaline substances; chlorpyrifos is easy to cause phytotoxicity to cruciferous vegetables, so it should be noted when using this product; the agent is toxic to bees, silkworms and fish, use Should pay attention to.
Xin Ma Emulsifiable Oil: It is a mixture of phoxim and malathion. The appearance is a brown homogeneous liquid, which is low in toxicity to humans and animals. Control the second and third generation cotton bollworm of common cotton, the number of eggs per 100 plants exceeds 15 and the number of larvae reaches 15, and each 667 m 2 uses 50% to 75 ml of 20% simian emulsifiable concentrate to spray water to prevent the fourth generation of cotton bollworm. To be used at the beginning of the peak of egg hatching, use 25% sim·ma emulsifiable concentrate 70~80 ml per 667 m2 to spray on water. Pay attention to even and thoughtful, can not be mixed with alkaline substances; phoxim in this product is easy to photolysis should avoid exposure; tomato, melon crops sensitive to the agent, should not be used.
High-chlorine·horse emulsifiable concentrate: It is a mixture of beta-cypermethrin and malathion. It has a light yellow to brownish yellow single-phase liquid. The beta-cypermethrin is moderately toxic, and the mixed preparation is low in toxicity. Control wheat pests, wheat bran at the booting stage to prevent birch, control long tube in the panicle, use 20% emulsifiable oil 40~50 ml per 667 m 2 to spray on water; control cotton aphid in cotton seedling three-leaf stage, roll leaf The rate is 20%, when there are 10 heads per plant; the control of cotton bollworm should be in the period of egg hatching, 20~60 ml of 20% emulsifiable oil per 667 m2, spray on water; control the vegetable cabbage caterpillar, in the young larvae Period, use 20% emulsifiable oil 15~40 ml per 667 m2, spray water with 31.6~63.7 ml of 37% emulsifiable oil per 667 m2. For the control of rapeseed meal, spray 15~40 ml of 20% emulsifiable concentrate or 50~60 ml of 24% emulsifiable concentrate per 667 m 2 at the beginning of the period. Plutella xylostella should be sprayed with 20-50 ml of 20% emulsifiable concentrate per 667 m 2 before the age of larvae; control of fruit tree aphids should be sprayed with 20% emulsifiable concentrate 1000-4000 times at the beginning of the locust. In the early stage of adult spawning, when the egg-fruit rate reaches 0.5% to 1%, it is sprayed with 20% emulsifiable concentrate 1000-1500 times. The control of tangerine must be sprayed with 2000% to 4000 times of 37% EC at the beginning of the aphid. Before the third instar larvae, the tea caterpillar should be 20~60 ml with 20% emulsifiable oil per 667 m 2; the tea green leaf mites should be applied at the first peak period (from late May to mid June) because of the insect More on the back of the leaf is harmful, so it should be even and thoughtful, the amount of tea caterpillars. Matters needing attention: spraying requirements are even and thoughtful, can not be used with alkaline substances; the agent is toxic to fish, silkworms, bees should pay attention to safety, this product has a stimulating effect on the conjunctiva, if splashed into the eyes should be washed with water, pay attention to protection .
Enemy horse emulsifiable concentrate: single agent is trichlorfon and malathion, 40% of emulsifiable oil has a brownish yellow transparent liquid, and 60% emulsifiable concentrate is yellow or brown oily liquid, which is moderately toxic to humans and animals. To control cotton aphid pests, in the peak period, use 60% emulsifiable concentrate of 50-75 ml per 667 m 2 to spray water; control vegetable cabbage caterpillars, about 1 week of adult egg laying peak, larvae 2 to 3 years old, each 667 m 2 with 60% EC 50-63 ml, spray on water; control forest pine caterpillar, in the spring pine caterpillars completely on the tree feeding, late April or early May, pine caterpillars occur in serious areas, the average per insect population 20 Above the head, at the same time, in the young larval stage, use 60% emulsified milk 100~150 ml per 667 m2 for ultra-low-spray spraying; control grassland soil mites, use 40% emulsifiable concentrate 100-125 ml before the third instar larvae spray. Precautions: Do not mix with alkaline substances; do not use drugs on sorghum, and pay attention to the wind direction when using sorghum nearby, so as to avoid the medicinal damage caused by the drops drifting to the sorghum; Uniformity does not affect the efficacy.
Pyridoxan WP: It is a mixture of imidacloprid and insecticide. It is a pesticide specially used for rice. It has strong contact and stomach toxicity, and has certain bactericidal effect. The residual effect period is 7~ 15 days. The insecticidal single agent is moderately toxic to the highly toxic preparation. To control rice secondary and tertiary mites, apply about 1 week after the peak period of egg hatching, use 50% wettable powder 80-100 grams per 667 m 2 for water spray; prevention and control of rice vertical leaf roller When the larvae at the peak of egg hatching are 1~2 years old, when there are scattered white leaves in the field, apply 50% wettable powder 100~120g per 667m2, spray on water; control rice planthopper, to spread the peak of adult generation During the peak period of the second and third generation nymphs, use 50% wettable powder 100~120g per 667m2 to spray on water. For each 667 m 2, use 60% wettable powder 41~60 g, and use 75% wettable powder 49-59 g to spray on water. Note: This product is highly toxic to silkworms. It should be used when using it. It should be kept in the water layer of rice paddy 3~6cm and kept for 3~5 days. It can not be mixed with alkaline substances; it is low toxicity to humans and animals. It is safe to use. If it is inadvertently poisoned, it should be vomited immediately and sent to hospital for treatment.
Avi High Chlorine EC: The single agent name is avermectin and beta-cypermethrin. This product has contact and stomach toxicity, but has no systemic and fumigation effects, and has strong ability to penetrate into plant leaves, so it has good effect on pests immersed in leaves, and is a low toxicity preparation (but 3.3% emulsifiable concentrate is moderately toxic) . For the control of Liriomyza, it should be used in the initial stage, when there are a few white spots on the leaves, use 3% emulsifier 50~70 ml per 667 m 2 to spray on water; control Plutella xylostella is in the egg hatching period or young larvae Period, every 1 667 m 2 with 1% emulsifiable concentrate 50~70 ml or 3% emulsifiable concentrate 40~60 ml, or 3.3% emulsifiable concentrate 20~30 ml, spray on water; control pear hibiscus should be in the early stage, preferably in pear tree Before the winter insects and the first generation of eggs, the first generation of nymphs were treated after falling flowers, and 5 to 10 ml of 1% emulsifiable concentrate was added per liter of water, or 1000 to 1500 times of 3% emulsifiable concentrate. Pear saplings are mainly used to suck the leaves and the sap of the young shoots, so that the leaves are longitudinally rolled to the back, mostly in the shape of a half moon. In severe cases, they shrink and brown, and the coke is off. Note: It is required to spray evenly and thoughtfully, and the front and back sides of the blade should be sprayed to infiltrate into the blade to kill the spotted fly that lurks in the tunnel under the epidermis of the blade; it cannot be used with alkaline substances.
Xin Awei EC: It is a mixture of phoxim and avermectin. 15% of the emulsifiable concentrate is a light yellow to brownish red homogeneous liquid, and 20% of the emulsifiable concentrate is a brownish red homogeneous liquid. Among them, phoxim has photolysis characteristics, so it should be avoided from spraying under strong sunlight. The agent is low in toxicity to humans and animals, but has mild irritation to eyes and skin. For the control of Plutella xylostella, the drug should be used in the early stage of the young larvae. Use 25% emulsifiable concentrate (25-50 ml) or 20% emulsifiable concentrate 50-70 ml per 667 m 2 to spray on the water. Spray evenly with 1~2 ml of 20% emulsifiable concentrate per liter. Note: Store in a dark place, avoid light and moisture; do not mix with alkaline substances; stop using drugs 10 days before harvest.
Avi Poison Oil: Single doses are avermectin and chlorpyrifos. This product has contact and stomach toxicity, but no systemic and fumigation effects, killing pests quickly and safe for crops. Except that 42% emulsifiable concentrate is moderately toxic to humans and animals, the other preparations are low in toxicity. For the control of Plutella xylostella, in the period of egg hatching, the larvae should be used at the age of 1~2 years, preferably with 10% emulsifiable oil 75~100 ml per 667 m2, or 10.2% emulsifiable oil 30~50 ml, or 15% emulsifiable oil 20~25 ml. For water spray; control of cabbage caterpillars, in the young age of larvae, use 42% emulsifiable oil 20~40 ml per 667 m 2 to spray on water. Note: The spray is even and thorough and cannot be mixed with alkaline substances.
Xin cyfluthrin EC: formulated with phoxim and cyfluthrin. The agent has contact and stomach toxicity, no systemic and fumigation effects, fast insecticidal speed, long residual effect period, 25%, 26% emulsifiable concentrate is moderately toxic to humans and animals, 30%, 43% emulsifiable concentrate is low for humans and animals. poison. Control cotton bollworm, apply before the larval stage of egg hatching to 1~2 instar larvae, use 25% emulsifiable oil 33~50 ml per 667 m 2 or 25~50 ml of 43% emulsifiable concentrate to spray on water; It is necessary to apply 1000 tablets per 100 plants, or 20% to 30% for 3 to 4 leaf leaves, 30 to 50 ml of 30% emulsifiable concentrate per 667 m 2 or 20 to 40 ml of 43% emulsifiable concentrate. Spray; control the rapeseed meal in the initial period, use 30% emulsifiable concentrate 30~50 ml per 667 m 2 to spray on water; to control the larvae, to be applied in the initial stage, when there are sporadic small white spots on the leaves For every 667 m 2 with 30% emulsifiable concentrate 30~50 ml, spray on water; control beetles that are mainly harmful to soybeans, but are omnivorous (ie, feeding on multiple crops) pests, in the young larvae Apply a spray of 30-50 ml of 30% emulsifiable concentrate per 667 m2 to water. Note: It is required to spray evenly and thoughtfully; 30% and 43% emulsifiable concentrates are low-toxic to humans and animals, but they should be used safely when used, 25% and 26% are moderately toxic, and should be used in accordance with the safe use of pesticides. If it is inadvertently poisoned, it should be sent to the hospital immediately; the phoxim in the preparation is easy to be photolyzed, and should be avoided under the scorching sun; it should not be mixed with alkaline substances.
Oxygen Bromine EC: Single doses are omethoate and deltamethrin. The preparation has the appearance of light yellow or brown red transparent liquid, has the functions of contact killing and stomach poisoning, has fast insecticidal speed, long residual effect period, and moderate toxicity to humans and animals. To control wheat aphids, it is necessary to apply the pesticide at the peak of wheat aphid during the grain filling stage of wheat, and use 25% emulsifiable concentrate 20-25 ml per 667 m 2 to spray water. Note: Can not be mixed with alkaline substances; poisonous to fish, silkworms and bees, should be used when using.
Amine/Cyanide EC: A single dose is acesulfame and fenvalerate. Its appearance is yellow to brownish yellow transparent liquid, which has the effect of killing stomach and poison, has a killing effect on eggs, has a long residual effect, and the preparation is moderately toxic to humans and animals. To control cotton bollworm, it is necessary to apply the medicine before the second instar larvae at the peak of egg hatching. Use 20% emulsifiable concentrate or 30% emulsifiable concentrate 30~40 ml per 667 m2 to spray on water; control cotton aphid, in the period of cotton aphid For every 667 m 2 with 30% emulsifiable concentrate 30~40 ml, spray on water; control pear hibiscus, before wintering adults to active but not yet spawning or in the early stage of egg hatching, use 20% or 25% emulsifiable concentrate 1000~2000 times Liquid spray; control apples, pear red spiders, before and after flowering of apples and pear trees, into the stagnation period, if the sputum is in full bloom, spray with 1300~1500 times of 27% emulsifiable concentrate. Precautions: Do not mix with alkaline substances; require even and thorough spraying; use in accordance with the safe use of pesticides, if inadvertently poisoned, should be immediately sent to hospital for treatment.
High-chlorine and amamine EC: Single doses are beta-cypermethrin and acesulfame. The agent has the functions of contact killing and stomach poisoning, but has no systemic and fumigation effects, has certain egg-killing characteristics, relatively strong penetrating ability, fast insecticidal speed, long residual effect period, and good effect on pear hibiscus. Animals are moderately toxic. For the control of cotton bollworm, it is necessary to apply the medicine during the period from the hatching period to the second instar larvae, or 40% to 50 ml of 20% emulsifiable concentrate, or 37.2 to 56 ml of 22% emulsifiable concentrate, to spray water; to control citrus scale insects, to be used at the beginning of the period. 20% emulsifiable concentrate 1000~2000 times liquid spray; control pear hibiscus should be sprayed with 20% emulsifiable concentrate 1000~1500 times in the egg hatching period. Note the same as the amine amine cyanide emulsifiable concentrate.
Nicotine and alizarin water: single agent is nicotine and alizarin. The agent is mainly based on stomach poisoning and insecticidal action, and has a contact-killing effect, low toxicity to humans and animals, and no irritating effect on skin. To control the vegetable cabbage caterpillar, it should be applied in the 2nd to 3rd instar larvae, and spray 141~188ml with 3.2% water agent per 667m2. Note: This agent is a plant insecticide. The wet performance of the water agent is relatively low. Therefore, detergent powder can be added to improve the efficacy when using it. It should be even and thoughtful when spraying. Although this agent is a low-toxic pesticide, it is also Should pay attention to safety.
Double-alkali alkaline agent: single agent is artemisinin and hexalin. Its appearance is a brown transparent liquid, which is low in toxicity to humans and animals, safe to crops, and has a contact and stomach toxicity. Because this product is a botanical agent, it needs to be refined before it can be used. It is mainly used for the control of vegetable aphids. It should be used in the early to the peak period of the wingless mites, and spray water on the water for 667 m2 with 0.85% water agent 100~150 ml. Note: The liquid can not be stored after adding water, and it can be used now; it can not be mixed with alkaline substances; it should be protected from light when stored, and it should be placed in a dry and ventilated place.
In addition to the pesticide mixture, the insecticide mixture can not completely solve the problem when it is used. For example, whether it is a single agent or a mixture, and regardless of their nature, they are sprayed together and considered to be effective. The biggest, the best, this is completely wrong. It is necessary to know that pesticide mixture is not a mixture of any pesticides that can be mixed and used at random. It is necessary to carry out a series of research and experiments to develop an efficient, low-cost and safe insecticidal mixture, and to cooperate with scientific and rational use. Technology can achieve the desired results.
1. Synergism: Pesticides will synergistically increase each other, especially those with different insecticidal mechanisms, and the synergy is more significant, thus improving the insecticidal control effect. How to judge the synergistic effect of insecticidal mixture; usually, some data are obtained through certain methods, and then calculated according to a certain formula. When the obtained figure is 1, it indicates that the two insecticides have no synergistic effect. It is only additive; the number of more than 1 indicates that it is synergistic. The larger the number is, the higher the efficiency is. The less than 1 is the reduction. That is to say, after the two pesticides are mixed, they are used separately. The effect is still low. Therefore, everyone usually judges the size of the number calculated by the experiment and shows the synergy. For example, beta-cypermethrin and malathion are mixed in a certain proportion, the number obtained by the cotton bollworm test is 219, and the number obtained by the peach aphid test is 47, indicating that the two insecticides have a significant synergistic effect. However, some pesticides may decompose in the presence of alkaline substances, such as organophosphorus insecticides, and if the agents mixed with them are alkaline, they will be reduced. So not all pesticides can be used together. At present, some farmers' friends still use a mixture of several insecticides when they are controlling pests. This is not appropriate. Pay special attention when using them.
2. Complementary advantages: The insecticidal speeds of the two insecticides are not the same. If they are properly mixed, they can complement each other. For example, pyrethroid insecticides have a fast insecticidal effect, while specific insecticides have a slow insecticidal rate. If the two are properly mixed, they can complement each other. For example, avermectin and beta-cypermethrin are mixed. The former is slow to kill insects. Faster, after mixing, it can speed up the insecticidal effect.
3. Expanding the insecticidal spectrum: Some insecticides have a good killing effect on lepidopteran pests, but they are not effective against mites. If they are mixed with insecticides or acaricides with strong acaricidal action, they can simultaneously control scales. Hymenoptera pests and acarid pests. One medicine and more treatment can save labor and time.
4. Delay pest resistance: Pyrethroid pesticides are more likely to cause pest resistance, such as cotton bollworm, if they are mixed with other pesticides, the pest resistance can be delayed or the resistance level is low. For example, the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences used 20% chrysanthemum emulsifiable concentrate (fenvalerate and malathion) and 20% fenvalerate to treat cotton bollworm separately. After 16 generations of continuous treatment, the level of resistance was used. It was found that the resistance of cotton bollworm treated with fenvalerate alone was 64.54 times higher than that of cotton bollworm treated with chrysanthemum emulsifiable concentrate, indicating that chrysanthemum emulsifiable concentrate significantly delayed the resistance of cotton bollworm.
5. Reduce the cost of prevention: Some pesticides are expensive and some are cheaper. If they are properly mixed, they not only have many of the above advantages, but also reduce the cost of prevention. For example, 50% pyridazole WP, imidacloprid has good insecticidal effect, but it is expensive. If it is mixed with cheap insecticide, it can be used on rice, not only to control rice planthopper, but also to control leafhopper. At the same time, it also reduces the cost of prevention.
In short, because of the many advantages of mixed pesticides, they have been welcomed by farmers and developed so rapidly. The following may also introduce some of the insecticidal mixtures currently used in production and the scope and methods of use, for reference by farmers.
Chrysanthemum mas cream: It is a mixture of fenvalerate and malathion. The appearance is light yellow to brown single-phase liquid, transparent, uniform, no delamination, no precipitation, good emulsifying property and stability, low toxicity to humans and animals, no irritation to the skin, but moderate stimulation to the conjunctiva . The control of wheat pests can be sprayed at more than 150 heads of wheat stems at the booting stage of wheat. At this time, the main control of wheat bifurcation, 20 to 30 ml of 20% emulsifiable concentrate per 667 m 2 is used to control wheat long tube mites at the wheat ear stage. Use 20~30ml per 667m2 to spray on water; control cotton pests should focus on the cotton bollworm generation, insect-resistant cotton mainly control the second and third generations of cotton bollworm, and use it when the larvae reach 5 heads, use 667 meters per 667 meters 20% emulsifiable oil 40~50ml, spray on water; control vegetable pests, aphids in the initial stage, cabbage caterpillars in the adult egg laying peak of about 1 week, larvae in the low age of every 667 m 2 with 20% emulsifiable oil 40~50 ml, Spray on water. Control the fruit tree peach small heartworm, apply the medicine when the egg rate reaches 1% in the egg hatching period, spray with 20% emulsifiable oil 600~1250 times, which can effectively prevent and control the larvae of the peach heartworm, and have certain ovicidal effect. Note: This agent can not be mixed with alkaline substances, and is poisonous to bees, silkworms and fish. It should be used when using. In addition, the agent has a stimulating effect on the eyes, and if it is accidentally splashed into the eyes, it should be rinsed with water immediately.
Chrysanthemum emulsifiable concentrate: It is a mixture of fenvalerate and chlorpyrifos. It is a brownish yellow oily liquid with good emulsifying properties and stability. It is low in toxicity to humans and animals, has no irritation to the skin, and has a stimulating effect on the conjunctiva. For the control of wheat pests, in the booting stage and the earing stage of wheat, the number of stalks is more than 150, and each 667 m 2 is sprayed with 20-40 ml of 20% emulsifiable concentrate; the control of cotton aphid is up to the rate of sorghum At 30%, use 20% emulsifiable concentrate 30~50 ml per 667 m 2 to control the cotton bollworm. In the initial period of egg hatching, use 20% emulsifiable concentrate 40~50 ml per 667 m 2 to spray on water; In the initial period of the wingless mites, 30% to 60 ml of 20% emulsifiable concentrate per 667 m 2 should be used to control the cabbage worms, about one week after the peak of adult spawning. The larvae are sprayed with 30% to 60 ml of 20% emulsifiable concentrate per 667 m 2 at the early age of the larvae. The control of the fruit tree peach larvae is sprayed with 20% emulsifiable concentrate 600~1250 times per 667 m2 in the egg hatching period. Note: It is required to spray evenly and thoughtfully; it can not be mixed with the quality of alkaline substances; chlorpyrifos is easy to cause phytotoxicity to cruciferous vegetables, so it should be noted when using this product; the agent is toxic to bees, silkworms and fish, use Should pay attention to.
Xin Ma Emulsifiable Oil: It is a mixture of phoxim and malathion. The appearance is a brown homogeneous liquid, which is low in toxicity to humans and animals. Control the second and third generation cotton bollworm of common cotton, the number of eggs per 100 plants exceeds 15 and the number of larvae reaches 15, and each 667 m 2 uses 50% to 75 ml of 20% simian emulsifiable concentrate to spray water to prevent the fourth generation of cotton bollworm. To be used at the beginning of the peak of egg hatching, use 25% sim·ma emulsifiable concentrate 70~80 ml per 667 m2 to spray on water. Pay attention to even and thoughtful, can not be mixed with alkaline substances; phoxim in this product is easy to photolysis should avoid exposure; tomato, melon crops sensitive to the agent, should not be used.
High-chlorine·horse emulsifiable concentrate: It is a mixture of beta-cypermethrin and malathion. It has a light yellow to brownish yellow single-phase liquid. The beta-cypermethrin is moderately toxic, and the mixed preparation is low in toxicity. Control wheat pests, wheat bran at the booting stage to prevent birch, control long tube in the panicle, use 20% emulsifiable oil 40~50 ml per 667 m 2 to spray on water; control cotton aphid in cotton seedling three-leaf stage, roll leaf The rate is 20%, when there are 10 heads per plant; the control of cotton bollworm should be in the period of egg hatching, 20~60 ml of 20% emulsifiable oil per 667 m2, spray on water; control the vegetable cabbage caterpillar, in the young larvae Period, use 20% emulsifiable oil 15~40 ml per 667 m2, spray water with 31.6~63.7 ml of 37% emulsifiable oil per 667 m2. For the control of rapeseed meal, spray 15~40 ml of 20% emulsifiable concentrate or 50~60 ml of 24% emulsifiable concentrate per 667 m 2 at the beginning of the period. Plutella xylostella should be sprayed with 20-50 ml of 20% emulsifiable concentrate per 667 m 2 before the age of larvae; control of fruit tree aphids should be sprayed with 20% emulsifiable concentrate 1000-4000 times at the beginning of the locust. In the early stage of adult spawning, when the egg-fruit rate reaches 0.5% to 1%, it is sprayed with 20% emulsifiable concentrate 1000-1500 times. The control of tangerine must be sprayed with 2000% to 4000 times of 37% EC at the beginning of the aphid. Before the third instar larvae, the tea caterpillar should be 20~60 ml with 20% emulsifiable oil per 667 m 2; the tea green leaf mites should be applied at the first peak period (from late May to mid June) because of the insect More on the back of the leaf is harmful, so it should be even and thoughtful, the amount of tea caterpillars. Matters needing attention: spraying requirements are even and thoughtful, can not be used with alkaline substances; the agent is toxic to fish, silkworms, bees should pay attention to safety, this product has a stimulating effect on the conjunctiva, if splashed into the eyes should be washed with water, pay attention to protection .
Enemy horse emulsifiable concentrate: single agent is trichlorfon and malathion, 40% of emulsifiable oil has a brownish yellow transparent liquid, and 60% emulsifiable concentrate is yellow or brown oily liquid, which is moderately toxic to humans and animals. To control cotton aphid pests, in the peak period, use 60% emulsifiable concentrate of 50-75 ml per 667 m 2 to spray water; control vegetable cabbage caterpillars, about 1 week of adult egg laying peak, larvae 2 to 3 years old, each 667 m 2 with 60% EC 50-63 ml, spray on water; control forest pine caterpillar, in the spring pine caterpillars completely on the tree feeding, late April or early May, pine caterpillars occur in serious areas, the average per insect population 20 Above the head, at the same time, in the young larval stage, use 60% emulsified milk 100~150 ml per 667 m2 for ultra-low-spray spraying; control grassland soil mites, use 40% emulsifiable concentrate 100-125 ml before the third instar larvae spray. Precautions: Do not mix with alkaline substances; do not use drugs on sorghum, and pay attention to the wind direction when using sorghum nearby, so as to avoid the medicinal damage caused by the drops drifting to the sorghum; Uniformity does not affect the efficacy.
Pyridoxan WP: It is a mixture of imidacloprid and insecticide. It is a pesticide specially used for rice. It has strong contact and stomach toxicity, and has certain bactericidal effect. The residual effect period is 7~ 15 days. The insecticidal single agent is moderately toxic to the highly toxic preparation. To control rice secondary and tertiary mites, apply about 1 week after the peak period of egg hatching, use 50% wettable powder 80-100 grams per 667 m 2 for water spray; prevention and control of rice vertical leaf roller When the larvae at the peak of egg hatching are 1~2 years old, when there are scattered white leaves in the field, apply 50% wettable powder 100~120g per 667m2, spray on water; control rice planthopper, to spread the peak of adult generation During the peak period of the second and third generation nymphs, use 50% wettable powder 100~120g per 667m2 to spray on water. For each 667 m 2, use 60% wettable powder 41~60 g, and use 75% wettable powder 49-59 g to spray on water. Note: This product is highly toxic to silkworms. It should be used when using it. It should be kept in the water layer of rice paddy 3~6cm and kept for 3~5 days. It can not be mixed with alkaline substances; it is low toxicity to humans and animals. It is safe to use. If it is inadvertently poisoned, it should be vomited immediately and sent to hospital for treatment.
Avi High Chlorine EC: The single agent name is avermectin and beta-cypermethrin. This product has contact and stomach toxicity, but has no systemic and fumigation effects, and has strong ability to penetrate into plant leaves, so it has good effect on pests immersed in leaves, and is a low toxicity preparation (but 3.3% emulsifiable concentrate is moderately toxic) . For the control of Liriomyza, it should be used in the initial stage, when there are a few white spots on the leaves, use 3% emulsifier 50~70 ml per 667 m 2 to spray on water; control Plutella xylostella is in the egg hatching period or young larvae Period, every 1 667 m 2 with 1% emulsifiable concentrate 50~70 ml or 3% emulsifiable concentrate 40~60 ml, or 3.3% emulsifiable concentrate 20~30 ml, spray on water; control pear hibiscus should be in the early stage, preferably in pear tree Before the winter insects and the first generation of eggs, the first generation of nymphs were treated after falling flowers, and 5 to 10 ml of 1% emulsifiable concentrate was added per liter of water, or 1000 to 1500 times of 3% emulsifiable concentrate. Pear saplings are mainly used to suck the leaves and the sap of the young shoots, so that the leaves are longitudinally rolled to the back, mostly in the shape of a half moon. In severe cases, they shrink and brown, and the coke is off. Note: It is required to spray evenly and thoughtfully, and the front and back sides of the blade should be sprayed to infiltrate into the blade to kill the spotted fly that lurks in the tunnel under the epidermis of the blade; it cannot be used with alkaline substances.
Xin Awei EC: It is a mixture of phoxim and avermectin. 15% of the emulsifiable concentrate is a light yellow to brownish red homogeneous liquid, and 20% of the emulsifiable concentrate is a brownish red homogeneous liquid. Among them, phoxim has photolysis characteristics, so it should be avoided from spraying under strong sunlight. The agent is low in toxicity to humans and animals, but has mild irritation to eyes and skin. For the control of Plutella xylostella, the drug should be used in the early stage of the young larvae. Use 25% emulsifiable concentrate (25-50 ml) or 20% emulsifiable concentrate 50-70 ml per 667 m 2 to spray on the water. Spray evenly with 1~2 ml of 20% emulsifiable concentrate per liter. Note: Store in a dark place, avoid light and moisture; do not mix with alkaline substances; stop using drugs 10 days before harvest.
Avi Poison Oil: Single doses are avermectin and chlorpyrifos. This product has contact and stomach toxicity, but no systemic and fumigation effects, killing pests quickly and safe for crops. Except that 42% emulsifiable concentrate is moderately toxic to humans and animals, the other preparations are low in toxicity. For the control of Plutella xylostella, in the period of egg hatching, the larvae should be used at the age of 1~2 years, preferably with 10% emulsifiable oil 75~100 ml per 667 m2, or 10.2% emulsifiable oil 30~50 ml, or 15% emulsifiable oil 20~25 ml. For water spray; control of cabbage caterpillars, in the young age of larvae, use 42% emulsifiable oil 20~40 ml per 667 m 2 to spray on water. Note: The spray is even and thorough and cannot be mixed with alkaline substances.
Xin cyfluthrin EC: formulated with phoxim and cyfluthrin. The agent has contact and stomach toxicity, no systemic and fumigation effects, fast insecticidal speed, long residual effect period, 25%, 26% emulsifiable concentrate is moderately toxic to humans and animals, 30%, 43% emulsifiable concentrate is low for humans and animals. poison. Control cotton bollworm, apply before the larval stage of egg hatching to 1~2 instar larvae, use 25% emulsifiable oil 33~50 ml per 667 m 2 or 25~50 ml of 43% emulsifiable concentrate to spray on water; It is necessary to apply 1000 tablets per 100 plants, or 20% to 30% for 3 to 4 leaf leaves, 30 to 50 ml of 30% emulsifiable concentrate per 667 m 2 or 20 to 40 ml of 43% emulsifiable concentrate. Spray; control the rapeseed meal in the initial period, use 30% emulsifiable concentrate 30~50 ml per 667 m 2 to spray on water; to control the larvae, to be applied in the initial stage, when there are sporadic small white spots on the leaves For every 667 m 2 with 30% emulsifiable concentrate 30~50 ml, spray on water; control beetles that are mainly harmful to soybeans, but are omnivorous (ie, feeding on multiple crops) pests, in the young larvae Apply a spray of 30-50 ml of 30% emulsifiable concentrate per 667 m2 to water. Note: It is required to spray evenly and thoughtfully; 30% and 43% emulsifiable concentrates are low-toxic to humans and animals, but they should be used safely when used, 25% and 26% are moderately toxic, and should be used in accordance with the safe use of pesticides. If it is inadvertently poisoned, it should be sent to the hospital immediately; the phoxim in the preparation is easy to be photolyzed, and should be avoided under the scorching sun; it should not be mixed with alkaline substances.
Oxygen Bromine EC: Single doses are omethoate and deltamethrin. The preparation has the appearance of light yellow or brown red transparent liquid, has the functions of contact killing and stomach poisoning, has fast insecticidal speed, long residual effect period, and moderate toxicity to humans and animals. To control wheat aphids, it is necessary to apply the pesticide at the peak of wheat aphid during the grain filling stage of wheat, and use 25% emulsifiable concentrate 20-25 ml per 667 m 2 to spray water. Note: Can not be mixed with alkaline substances; poisonous to fish, silkworms and bees, should be used when using.
Amine/Cyanide EC: A single dose is acesulfame and fenvalerate. Its appearance is yellow to brownish yellow transparent liquid, which has the effect of killing stomach and poison, has a killing effect on eggs, has a long residual effect, and the preparation is moderately toxic to humans and animals. To control cotton bollworm, it is necessary to apply the medicine before the second instar larvae at the peak of egg hatching. Use 20% emulsifiable concentrate or 30% emulsifiable concentrate 30~40 ml per 667 m2 to spray on water; control cotton aphid, in the period of cotton aphid For every 667 m 2 with 30% emulsifiable concentrate 30~40 ml, spray on water; control pear hibiscus, before wintering adults to active but not yet spawning or in the early stage of egg hatching, use 20% or 25% emulsifiable concentrate 1000~2000 times Liquid spray; control apples, pear red spiders, before and after flowering of apples and pear trees, into the stagnation period, if the sputum is in full bloom, spray with 1300~1500 times of 27% emulsifiable concentrate. Precautions: Do not mix with alkaline substances; require even and thorough spraying; use in accordance with the safe use of pesticides, if inadvertently poisoned, should be immediately sent to hospital for treatment.
High-chlorine and amamine EC: Single doses are beta-cypermethrin and acesulfame. The agent has the functions of contact killing and stomach poisoning, but has no systemic and fumigation effects, has certain egg-killing characteristics, relatively strong penetrating ability, fast insecticidal speed, long residual effect period, and good effect on pear hibiscus. Animals are moderately toxic. For the control of cotton bollworm, it is necessary to apply the medicine during the period from the hatching period to the second instar larvae, or 40% to 50 ml of 20% emulsifiable concentrate, or 37.2 to 56 ml of 22% emulsifiable concentrate, to spray water; to control citrus scale insects, to be used at the beginning of the period. 20% emulsifiable concentrate 1000~2000 times liquid spray; control pear hibiscus should be sprayed with 20% emulsifiable concentrate 1000~1500 times in the egg hatching period. Note the same as the amine amine cyanide emulsifiable concentrate.
Nicotine and alizarin water: single agent is nicotine and alizarin. The agent is mainly based on stomach poisoning and insecticidal action, and has a contact-killing effect, low toxicity to humans and animals, and no irritating effect on skin. To control the vegetable cabbage caterpillar, it should be applied in the 2nd to 3rd instar larvae, and spray 141~188ml with 3.2% water agent per 667m2. Note: This agent is a plant insecticide. The wet performance of the water agent is relatively low. Therefore, detergent powder can be added to improve the efficacy when using it. It should be even and thoughtful when spraying. Although this agent is a low-toxic pesticide, it is also Should pay attention to safety.
Double-alkali alkaline agent: single agent is artemisinin and hexalin. Its appearance is a brown transparent liquid, which is low in toxicity to humans and animals, safe to crops, and has a contact and stomach toxicity. Because this product is a botanical agent, it needs to be refined before it can be used. It is mainly used for the control of vegetable aphids. It should be used in the early to the peak period of the wingless mites, and spray water on the water for 667 m2 with 0.85% water agent 100~150 ml. Note: The liquid can not be stored after adding water, and it can be used now; it can not be mixed with alkaline substances; it should be protected from light when stored, and it should be placed in a dry and ventilated place.
In addition to the pesticide mixture, the insecticide mixture can not completely solve the problem when it is used. For example, whether it is a single agent or a mixture, and regardless of their nature, they are sprayed together and considered to be effective. The biggest, the best, this is completely wrong. It is necessary to know that pesticide mixture is not a mixture of any pesticides that can be mixed and used at random. It is necessary to carry out a series of research and experiments to develop an efficient, low-cost and safe insecticidal mixture, and to cooperate with scientific and rational use. Technology can achieve the desired results.
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