The pesticide application time is preferably between 9:00 am and 4:00 pm. Because after 9 o'clock in the morning, the dew on the leaves of the crops has dried up. It is also the time when the sunrise pests are most active. At this time, the application of pesticides will not affect the control effect due to dew liquid, but also make direct contact between pests and pesticides, increasing the chance of insect poisoning. After 4 pm, the light weakens, and it is during the flight and nocturnal pests that they are about to move. At this time, the pesticide is applied and the pesticide can be applied to the crop in advance. When the pests move out or feed at dusk and at night It can cause death by exposure to venom or feeding poisoning, and it can also avoid evaporation loss and photolysis failure.
According to the location of the pest, select different medicines and adopt different methods of spraying.
For pests that harm the roots, the pesticides are applied to the roots or applied to the sowing ditch; the pests feeding on the back of the leaves spray the liquid on the opposite side of the leaves; and the red bollworm and the cotton bollworm are put on the buds. , on the bell and on the tip of the group; prevention and control of locusts caused dead heart seedlings on the spread of toxic soil; prevention and control of white spike on the spray or splashing; prevention of rice planthoppers, rice leaf lice on the spray to the base of rice plants; control twill Nocturnal moths spray liquids onto flower buds and larvae. In addition, hidden insects such as cotton aphid, red spider, rice planthopper, and rice leafhopper, etc., can be absorbed by insecticides with strong systemic absorption and transmitted to other parts of the plant according to their sucking and sucking mouthparts. To achieve the purpose of drug delivery.
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