The common pests and diseases of greenhouse peas include rust, brown spot, and leaf stag fly disease. For different pests and diseases, the application standards for peas are different. Let's take a look at the Xiaobian of China Pesticide Network .
1. The pea leaf spotted fly is more harmful and should be prevented as early as possible. It is generally carried out at the end of March and the beginning of April, and is sprayed twice with a 1200 times solution of 20% sulphate or 3,000 times of avermectin emulsifiable concentrate for 5 days.
2. Spraying 2000 times of cyhalothrin to control the bean moth.
3, pea disease mainly rust, brown spot disease, can be used 70% chlorothalonil 500-800 times liquid, 25% powder rust WP 2,000-3000 times liquid combined with pest control at the same time spray control; powdery mildew can be used 3000 times Liquid spray control. The period of use and harvest should be 15-20 days apart.
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