Corn bacterial wilt mainly occurs at the end of grain filling and is a fulminant and devastating disease, which is easy to cause serious yield loss.
1. Symptom recognition: At the end of corn filling, it is often sudden green wilt, the whole leaves are watery and dry, and the leaves are drooping, the leaves are dead; the base of the stem is water-immersed, then gradually turns into pale brown, handcuffs It has a hollow feel and often causes lodging.
2, factors affecting the incidence: First, caused by Fusarium; Second, caused by the common infection caused by Pythium, Pythium and Fusarium. Heavy rain from grouting to milky stage has an important impact on the occurrence of diseases. High water content in soil is an important condition for the occurrence of bacterial wilt.
3. Prevention and treatment methods: In addition to the selection of resistant varieties, attention should be paid to drainage.
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