1. Improve the utilization of pesticides
Pay attention to increase the adhesiveness. When pesticides are used in open-air crops, rainwater washout should be selected. Emulsifiable concentrates, etc. are suitable. These pesticides have a longer residual time on the plant surface, while powders and water agents are relatively poor. In many crop types, there are villi or thick waxy layers on the surface of the leaves, such as corn, scallion, ginger, taro, and so on. Liquids on the fluff and waxy layers easily form droplets that cannot fully contact the surfaces of the plant leaves. Silicone and other additives are added to the medicament to enhance the effect of the medicament.
2. Appropriately reduce the concentration of the drug
The efficacy of most pesticides will increase as the temperature rises, and the efficacy will also increase. Therefore, when using drugs during the high temperature season, attention should be paid to reducing the amount of liquids used. In particular, hormonal agents are particularly noticeable. The weight of medications can easily lead to injury. occur. Therefore, it is necessary to reasonably adjust the concentration of the drug according to the temperature change.
3. Pay attention to spray quality
In fact, when the crops are sprayed with pesticides, there is a limit to the amount of pesticide droplets that can be attached to the surface of the crop leaves. When the spraying volume exceeds a certain limit, the fine droplets on the blades will condense into large droplets, which will fall and be lost. Reduce the amount of pesticide attached to the blade. The spray method generally requires that the quality of the spray mist is evenly distributed and the coverage is high. It is advisable that the surface of the wet plant does not drip. This requires the sprayer to have a good atomization effect and reduce the waste of the liquid. At the same time pay attention to spraying a comprehensive, in particular, some pests like to lay eggs in the back of the leaf damage, spray medicine should pay special attention.
4. Reasonably spray to prevent poisoning
Pharmaceuticals and pesticides should be used to prevent pesticides from corroding the skin. The use of volatile pesticides must pay attention to the use of masks. At the same time, it is prohibited to spray pesticides at high temperatures during the summer noon. Summer spraying should be performed before 9 am or after 4 pm to avoid injury. happened. Do not apply drugs for extended periods of time.
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