Broad bean pest major pest control method

Rhizoctonia: mostly in low-wet fields with poor drainage, which can occur in low-temperature, rainy conditions. The roots and base of stems are affected. The lesions turn red-brown to brown-black, and the rot-root epidermis has yellow-brown hyphae and interconnects. The sclerotia are heavier at the seedling stage.

Stalk rot: The low-lying fields have waterlogging or nitriding fertilizers that are prone to excessive disease. The disease is severe during the seedling and middle stages. The disease invades the base of the roots and stems and causes it to turn black and rot and eventually causes death.

Red spot disease: It mainly damages leaves, stems and flowers. The affected leaves are reddish-brown small round spots with purple-brown edges. Severe leaves fall off and die.

Rust: The whole plant can be affected. The leaves are the most important. The leaves are the most important. The yellow spot first appears in the affected area and then turns into red and yellow spots. It finally turns into a red-brown spot. The disease is prone to occur under cloudy and rainy conditions. And die.

Locust: Mainly occurs from flowering to maturity, damaging young leaves, flowers, and pods. Resulting in the reduction of broad beans.

Pharmaceutical control methods:

Disease prevention and control: 1. At the beginning of the disease, 65% of zixin Zn wettable powder 50 grams of water is sprayed with 50 kg of water.

2, mu with 0.5% lime water 50 kg spray.

3, mu with 70% thiophantine powder 100 g water 75 kg spray, or spray with 50% carbendazim 800 times.

Pest Control: In the early stages of aphid development, use 50% of a new generation of WP 2000-3000 solution, or use 50% of a 1000-1500 times solution of eucalyptus pine oil, or use 10% imidacloprid WP 2000 times solution.

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