What kind of weather is not suitable for pesticide application

What kind of weather is not suitable for pesticide application? Please introduce that the control effect of pesticides is often affected by the weather. Under the climatic conditions of strong wind, rain, high temperature and high humidity, the use of pesticides will affect the efficacy of pesticides. Therefore, it is not suitable to apply pesticides under the above weather conditions. The reasons are as follows: (1) A strong wind is not suitable for medication. Because the windy weather is easy to make the sprayed powder or spray droplets flutter with the wind, it can not quickly land and uniformly attach to the surface of the crops to be prevented and treated; at the same time, it is easy to cause drug damage when the medicament drifts to the nearby sensitive crops. falling on the drug personnel is easy to cause poisoning, and it is easy to cause environmental pollution when it drifts into the air and water sources. Even if some chemicals reach the body surface of the crops to be controlled, the loss of pesticides will be caused by the shaking and friction of branches and leaves of crop plants under the influence of strong winds. (2) it is not suitable to apply medicine on cloudy or rainy days. Because Rain Water can wash away the chemicals directly, resulting in loss, which will not only affect the effect of prevention and control, but also cause pollution in river waters, leading to the poisoning and death of fish, shrimp and other aquatic organisms. Different pesticide varieties and dosage forms have different ability to resist scour by Rain Water. Generally speaking, internal inhaling pesticides can be absorbed into the body by crops, but they are less affected by Rain Water, especially the chemicals used for seed dressing, and Rain Water has even less influence on them. Among the dosage forms, powder and wettable powder are the least resistant to Rain Water scour and are easy to be lost, while EC pesticides are resistant to Rain Water scour to a certain extent due to the formation of an oil film on crops. (3) it is not suitable to apply pesticide in high temperature weather. High temperature will promote the decomposition of pesticides and accelerate the volatilization of pesticides, thus shortening the effective period of pesticides and reducing the effect of control. At the same time, because the metabolism of crops is exuberant in hot weather, the stomata of leaves are open and large, the medicine is easy to enter the crop body, and drug damage occurs. Therefore, in high temperature, even if we have to apply pesticides, we should appropriately reduce the concentration of pesticides, and try not to apply them at noon, so as to avoid drug damage and poisoning accidents. (4) it is not suitable to apply pesticide in high humid weather. If the humidity in the air is high, the fog is heavy or there is too much dew, it is easy to cause chemical decomposition of pesticides, resulting in pesticide failure or crop drug damage. However, microbial pesticides can exert their efficacy better when they are used at high temperature. Click to get more pesticide use technology