What are the common mistakes in the use of pesticides

What are the common mistakes in the use of pesticides? How to apply it correctly? Please guide the following common mistakes in the application of pesticides: make low-dose spray with high-toxic pesticides because of ultra-low-dose spraying with high-toxic pesticides, in order to maintain efficacy, the concentration of the spray is higher than that of conventional pesticides, and low-dose spray is limited to spraying less toxic pesticides, such as malathion, fenitrothion, dimethoate and pyrethroid pesticides, and requires users to always stand in the limelight of the non-drug line to walk. 1605, methamidophos and other highly toxic pesticides are strictly prohibited from ultra-low dose spray, so as not to cause productive poisoning. The specification and composition of granule pesticide are mostly developed and produced according to the biological characteristics of the control object and protected object and the environmental conditions of the drug site, so it has strong specificity, specificity and delivery target. At present, it is mainly used for drug use on the ground and underground. Control weeds or pests, do not spray with water. In addition, most of the raw drugs for the production of granules are highly toxic pesticides, and the toxicity is reduced after granulation treatment, which can increase the safety of use. Immersion spray will restore its toxicity, which is easy to cause poisoning. Wettable powder is a kind of powder made by mechanical milling or shunt powder by adding a certain amount of wetting agent and filler to the original medicine. compared with the general powder, the wettable powder has high content of effective components and poor fluidity. Therefore, it can only be used as a suspension after dissolving water, and can not be directly sprayed as a powder. The suitable temperature for pesticide spraying in high temperature, strong wind, cloudy and rainy days is 20 ℃ ~ 30 ℃. If the temperature is too high, the pesticide is easy to volatilize and decompose, which not only affects the control effect, but also easily causes poisoning. When the pesticide is applied in windy weather, the medicine is easy to drift away with the wind, and it is difficult to reach the target part, which not only can not get the effect of application, but also seriously pollute the environment. Therefore, it is stipulated that the wind speed should not exceed 1 m / s when spraying powder. In addition, most agents are not resistant to Rain Water scour, spray in overcast and rainy weather, it is easy to be washed away, it is difficult to get the desired effect and will pollute the environment. Diluting emulsified and suspended pesticide with well water contains a large amount of calcium and magnesium. Diluting with well water will destroy the emulsification and suspension performance of the agent, reduce or even completely lose the efficacy, not only affect the control effect, but also easy to produce drug damage. Expanding the scope of drug use at will mainly refers to agricultural herbicides, such as glycyrrhizin, which are mainly used in orchards, woodlands and other gardens and nurseries, but can not be used in field crops because of different herbicide properties; gram can be used for weeding in corn and mulberry fields without a trace, but protective shields should be used to prevent accidental spraying and cause drug damage. Click to get more pesticide use technology