Before purchasing pesticides, it's essential to first identify the specific pests and diseases you need to control. Understanding what needs to be treated and what requires curing will help you choose the right type of pesticide. When buying, always check the label and product description carefully. Legitimate pesticides are clearly labeled with key information such as the pesticide name, active ingredient content, registered trademark, batch number, manufacturing date, shelf life, and three essential certificates: the pesticide registration certificate number, approval certificate number, and product standard number. Additionally, a complete manual and certification documents should be included. Avoid purchasing any pesticide that lacks full certification or has unclear labeling.
Inspect the outer packaging thoroughly. Do not buy products with damaged or missing labels, or those with unclear instructions. For instance, if powders, wettable powders, or soluble powders have clumped together; if liquid formulations appear cloudy; if emulsifiable concentrates are not clear; or if granules contain excessive dust, these may indicate poor quality or ineffective products. Also, be cautious when purchasing multiple names for the same pesticide. Some products may share similar names but contain different active ingredients. For example, "Dagongchen," "Four Seasons Red," "One Pass Net," "Phlegm," and "Imidacloprid" are all 10% imidacloprid wettable powders, yet they may differ in formulation or additional components. Similarly, products like "Rice Insect Net" could be a mix of insecticides and Bt (Bacillus thuringiensis), or combinations of pyrethroids and organophosphates. Always verify the active ingredients before making a purchase.
When applying pesticides, farmers should follow several important guidelines. First, apply the pesticide based on symptoms and at the right time. Accurately identifying the pest or disease is crucial. Determine the main target and select the appropriate pesticide and formulation according to the stage and severity of the infestation. For disease prevention, apply protective agents before the outbreak occurs. Once the disease is present, switch to therapeutic agents. It’s important to act early and follow the principle of protection followed by treatment, ensuring the best timing for application and using the correct number of treatments for optimal results.
Second, use pesticides wisely. Avoid increasing the dose, concentration, or frequency unnecessarily, as this can lead to plant damage. Use the lowest effective concentration possible for prevention and control, and determine the number of applications based on the product’s residual effect and the level of pest or disease pressure.
Third, pay attention to the method of application. Different pesticide formulations require different application techniques. Emulsions and wettable powders are usually sprayed or poured, while powders are mainly used for spraying. Granules are typically spread or applied into the soil, and liquid concentrates can be sprayed, poured, or used for stem coating. Pesticides with different modes of action should also be applied using suitable methods to maximize effectiveness. Choose the right application method and timing based on the pest’s activity, the disease’s development, and the characteristics of the pesticide formulation.
Mechanical Diaphragm Metering Pump
As
the name suggests, Diaphragm Metering Pump using a special design and
processing of flexible diaphragm instead of the piston, under the action
of the drive mechanism to achieve reciprocating motion, complete the
suction - discharge process. Due
to the segregation of the diaphragm, the isolation between the metering
fluid and the driving lubrication mechanism is realized in the
structure. High-tech structural design and the selection of new materials has
greatly improved the service life of the diaphragm, coupled with
excellent corrosion resistance of composite materials, diaphragm
metering pumps become the main application of fluid measurement pump
type.
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