(1) Brown spot, black spot. In the initial flowering period of peanuts, when the diseased leaf rate reaches 10%-15%, spraying control is started. Spraying once every half month and spraying three times successively can achieve better results. Can be used 50% carbendazim application powder, 50% thiophanate-methyl 1000 times spraying, 75% chlorothalonil or 70% zein zinc 600 times spray control. Spray from the bottom up when spraying.

(2) Root rot. The seeds can be disinfected with 3% KC or 50% carbendazim powder.

(3) Bacterial wilt. First, we must use high-yield and disease-resistant varieties, followed by disinfection and sterilization of seeds before sowing. In the onset stage, we can use os-Streezing agent 300-400 times to irrigate the roots 1-2 times; 600-800 nights can also be sprayed. Spray once every 7-10 days; spray 2-3 times continuously.

(4) Peanut leaf aphids. Commonly known as red spider. The specific prevention and control method is for a single occurrence of the red spider land, which can be controlled by 15% broom-nail net emulsifiable concentrate 2500-3000 times, 73% kelp-emulsion 1000 times liquid or 20% exfoliating-emulsion 2000 times liquid spray; The mixture of spiders and white spiders can be sprayed with 1% 7051 chrysanthemum emulsifiable concentrate (avermectin) 3000 times.

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