Room diseases and insect pests, adopting reasonable farming practices, scientific water and fertilizer management and other cultivation measures can delay and reduce the occurrence of pests and diseases. However, chemical pesticides are still the main measures for effectively controlling and controlling the epidemic of diseases and insect pests. The following principles should be followed in the prevention and control of pesticides and melons.
According to the types of diseases and insects that occur, the prescribed medicines with high efficacy, low toxicity, and low residue are targeted for use.
Timely medication The optimal period of prevention and treatment is determined according to the occurrence of pests and diseases and the actual occurrence in the field. Seed diseases should be used as main diseases. Individual plants should be promptly treated for disease and insect pests and local pesticides should be applied. If necessary, all fields should be prevented from spraying, but pesticide application should be carried out at the early stage of pests and diseases.
Scientific drug use according to the pesticide instructions to determine the dosage and concentration, can not blindly increase the amount and increase the concentration of the drug without permission. According to the types of pests and their parts, determine the correct method of drug control and the focus of the application site, do a fine, uniform application.
Rotational drugs should be rotated using different agents within the same growing season. Do not use a single pesticide to delay the development of resistance and resistance development of pathogens and pests.
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