Introduction to Peanut Cultivation Techniques and Common Pests and Diseases
What pests and diseases affect peanuts? How to prevent and control them? We ask readers to help share information. The main pests and diseases of peanuts are leaf spot disease, cotton bollworm and red spider mite. Zhongdi Network has compiled their damage and control methods, listed below for readers' reference. 1. Damage of peanut leaf spot disease: Peanut leaf spot disease mainly includes brown spot...
What pests and diseases affect peanuts? How to prevent and control them? We ask readers to help share informationThe main pests and diseases of peanuts are leaf spot disease, cotton bollworm and red spider mite. Zhongdi Network has compiled their damage and control methods, listed below for readers' reference.
1. Damage of peanut leaf spot disease:
Peanut leaf spot disease mainly includes brown spot, black spot, net spot and scorch spot, which directly affect the plumpness of peanuts, thereby reducing peanut yield.
Control methods for peanut leaf spot disease:
Physical protective agent high-fat film at 200 times, biological preparation Nongkang 120 at 200 times and marine biological preparation Nongle No. 1 at 400 times. Chemical agents: difenoconazole at 1000 times, chlorothalonil at 1000 times, diniconazole at 1500 times, Yeban Jing II at 600 times, Bordeaux mixture, mancozeb at 400 times, etc., with 75 kg of spray solution per mu. For summer-sown and wheat-intercropped peanuts, maintaining good leaves is especially important for increasing yield.
2. Damage of cotton bollworm and red spider mite:The third generation of cotton bollworm damages wheat-intercropped peanuts, and the fourth generation damages summer peanuts. Larvae from the first to third instar feed on tender leaves and flower buds, and from the fourth instar they enter a period of heavy feeding. Control is more effective before the third instar. Red spider mites are prone to outbreak under drought conditions in the later stage.
The main pesticides for controlling cotton bollworm are: 50% phoxim emulsion or 2.5% deltamethrin EC at 1500 times solution, 20% methomyl at 1200 times solution.
The main pesticides for controlling red spider mite are: 20% Guangketong at 1000 times solution, 50% Mianlingbao EC at 800 times solution, etc.
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