6 pesticides should be used in summer
2018-06-16 11:00:15
1. Use quick-acting pesticides. Such as dichlorvos, rapid extermination and killing Ding, 1605, extinct sweeping, quick Cronin, enemy killing, etc., this type of pesticide poisoning effect is strong, knocked down quickly, after one or two hours can be used to kill pests. 2. Use systemic pesticides. Such as omethoate, fast-acting, metalaxyl, monocrotophos, methomyl, etc. According to experiments, more than 80% of active ingredients are absorbed by crops after 4-5 hours after use, and even if it rains, pests and pathogens can still be killed. 3. Add adhesives to water and wettable powders. Adhesion of water and wettable powders to pesticides is poor. When formulating pesticides, add 100-150 g soy flour or laundry detergent or agricultural adhesives for every 100 kg of liquid medicine. Powder) as an adhesive, can increase the adhesion of pesticides on crops and insect body surface, reduce the washout of rainwater on medicaments, and improve the use of pesticides. 4. Diluting pesticides with clear river water. Well water is generally rich in minerals. Diluent pesticides are easy to produce and cause sedimentation and reduce efficacy. Sewage contains more impurities, in order to prepare pesticides in addition to easy to plug the nozzle, but also destroy the suspension of pesticides and reduce pesticide activity. 5. According to the toxicity of pesticides, determine the safety interval of spraying. Generally, the residual period of high-toxic pesticides is more than 1 month, and that of high-efficiency and low-toxicity pesticides is 7-10 days. Before crops are harvested, pesticides shall be stopped in accordance with regulations to prevent human and animal poisoning. 6. Do not wear chemical fiber clothing spray drugs, chemical fiber clothing permeability, poor water absorption, anti-pollution ability is relatively weak, contaminated by pesticides, will quickly penetrate the human skin, infective poisoning. Therefore, it is advisable to spray pesticides in summer to wear cotton fabrics, and to wear protective equipment such as masks and gloves.
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