The appropriate time for pesticide application is 9-10 am and after 4 pm. Applying pesticides at this time will not affect the control effect due to the dilution of the liquid with dew, but also direct contact between pests and pesticides, increasing the chance of pest poisoning.
For pests on the roots, spray the medicine on the roots or in the sowing ditch; for pests that feed on the back of the leaves, spray the liquid on the opposite side of the leaves; according to their piercing and sucking mouthparts feeding method, you can choose The strong systemic insecticide is absorbed and spread to other parts of the plant to achieve the purpose of delivering the medicine in place.
When spraying pesticides, the sprayer must select the correct counterpart and the appropriate medication. At the same time, according to the factors that affect the efficacy, pay attention to solving the two easily overlooked problems of timely application and delivery of the pesticide.
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