Control cabbage loopers and locusts :In summer, if the cabbage worms and locusts are biting you, you should spray them with 1/4 cypermethrin 2000 times liquid spray to prevent them from happening; Control of red spider mites:We must do our best to prevent red spider mites, so the cultivation environment must be ventilated and have appropriate humidity, and try to avoid dryness and stuffiness. The pesticides used to control it include 1500 times liquid dose of 40% oxydemeton-methyl and 1000 times liquid dose of 40% dicofol . In summer, spraying should be carried out in cycles of 1-2 weeks, and thorough spraying should be carried out before wintering. To prevent and control scale insects:Chemical control does not have the expected effect on scale insects, so more attention should be paid to it. Try to keep the cultivation environment clean, cut off paper strips with many pests and burn them. Control of white grubs, wireworms and cutworms:At this time, fertilizer should be applied properly and 1/2 of the pesticide phoxim 1000 times should be used for irrigation to prevent the outbreak of diseases. |
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