How to prevent red blight blight

Red broom wilt disease, which can be infected during the seedling stage and long tubers. The disease at the seedling stage is mainly at the base of the stem, the leaves turn yellow first, the base of the stem enlarges and cracks longitudinally, the pith is exposed, and the vascular bundle becomes dark brown, and the cleft is seen at the cross section. Fibrous. The potato peduncles in the potato chips were rotten. The leaves of the diseased plants gradually turned yellow and then fell off. Finally, the whole vines dwindled to death. This red cricket shrinkage disease can cause 30% to 70% reduction in red peony disease, which is one of the major diseases of red peony. Therefore Yao Pingte, an agronomist of the Weiyuan County Agriculture Bureau, reminded his friends that he must not neglect the prevention and treatment of red warts. He said that in order to effectively control the disease of red peony, we should first master its morbid characteristics. This red pod atrophy disease has a long survival period of up to 3 years in the soil. Diseased potato disease seedlings can spread far and near, mostly with running water and agricultural tools. immersion. Rainwater is more conducive to the epidemic, and the incidence of continuous cropping, sand or sandy loam is even greater.

According to these characteristics and characteristics, strong disease-resistant varieties should be selected as seedlings, diseased red clover or seedlings must not be planted, and seedlings and seedlings should generally not be bought from other places; Corn, one line red dragonfly, will be exchanged in the coming year. One row of corn planted in red earthworms and one planted in corn will be used to plant red earthworms. The annual exchange rate will greatly reduce the disease incidence. 70% thiophanate-methyl WP can also be used to soak seed and soak seedlings. Once it is onset, spray 70% thiophanate-methyl WP or 800 times, or use 50% benomyl WP. 1500 times liquid spray, if necessary, can also be used to fill the nest liquid.

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