Pollution-free cultivation of eggplant, we should focus on prevention guidelines to treat diseases and pests of eggplant, if the pests and diseases, should first consider comprehensive prevention, such as the use of natural enemies of pests (Trichogramma, ladybird, etc.), bacteria of "natural enemies "(such as Jinggangmeisu, streptomycin, avermectin, etc.), and with some other high efficiency, low toxicity and residue, and the surrounding environment-friendly chemical pesticides. The first thing to do is to avoid using the following pesticides: Â
Secondly, we must pay attention to the problem of safe interval of application: What is the safe interval for pesticide application? Pesticides can be gradually reduced to the allowable standard by the action of enzymes in vegetables, the action of soil microorganisms, the isomerization or cleavage of pesticides themselves, and photolysis and alkaline hydrolysis, especially under the influence of climatic conditions. The number of days between the medicine and the harvest date ensures that the residue of the harvested vegetables will not exceed the standard, which is called the safety interval. Generally, the temperature is 7-10 days when the temperature is high, and 10-15 days when the temperature is low. If the safety interval of the specific pesticide is not very clear, it is best to apply the last half of the month before the vegetable is marketed.
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