In the summer, you should pay attention to the following points. The Chinese pesticide net Xiaobian will introduce you specifically:
1. Use quick-acting pesticides. Such as dichlorvos, fast killing Ding, 1605, destroying the sweep, quick kingling, enemy killing, etc., such pesticides have strong poisoning effect, fast knockdown, killing pests in an hour or two after use.
2. Select systemic pesticides. Such as Omethoate, Suikeling, Metalaxyl, Monocrotophos, Methomyl and so on. According to the test, more than 80% of the active ingredients are absorbed by the crops 4-5 hours after the use of such pesticides, and the pests and germs can be killed even if it rains. 2. Select systemic pesticides. Such as Omethoate, Suikeling, Metalaxyl, Monocrotophos, Methomyl and so on. According to the test, more than 80% of the active ingredients are absorbed by the crops 4-5 hours after the use of such pesticides, and the pests and germs can be killed even if it rains.
3. Adding an adhesive to a water agent or a wettable powder, the water agent and the wettable powder have poor adhesion to the pesticide. When preparing the pesticide, 100-150 g of soy flour or washing powder or agricultural adhesive is added per 100 kg of the liquid medicine ( As an adhesive, it can increase the adhesion of pesticides on crops and insects, and reduce the scouring of pesticides by rainwater, thus improving the use of pesticides.
4. Dilute the pesticide with clear river water. The well water generally contains more minerals, and the release of the pesticide is easy to produce chemical cooperation, forming a precipitate and reducing the efficacy. Sewage contains many impurities, which can be used to prepare pesticides, which can easily block the nozzle, and also destroy the suspension of the pesticide and reduce the vitality of the pesticide.
5. According to the toxicity of pesticides, determine the safe interval of application. Generally, the residual period of high-toxic pesticides is more than 1 month, and the high-efficiency and low-toxic pesticides are 7-10 days. Stop using pesticides before harvesting to prevent human and animal poisoning. 6. Do not wear chemical fiber clothes, chemical fiber clothes have strong permeability, poor water absorption, and weak anti-pollution ability. After being contaminated by pesticides, it will quickly penetrate human skin and cause infectious poisoning. Therefore, it is advisable to spray pesticides in the summer to wear cotton fabrics, and wear protective equipment such as masks and gloves.
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