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Cotton shows disease symptoms, integrated control with multiple measures
Symptom identification of cotton Fusarium wilt and Verticillium wilt. Cotton Fusarium wilt can occur throughout the entire growth and development period of cotton, but it occurs more severely at the seedling stage. If favorable conditions occur, it can also break out heavily at the adult plant stage. Sudden wilt type: leaves suddenly lose water, droop and wilt, leaf color is dark green, leaves become soft and thin, the whole plant dries green and dies, but leaves generally do not fall off, and petioles bend. Yellowing type: can occur at both the seedling stage and the adult plant stage. The yellowing type mostly starts from the leaf margins, with part or all of the leaf turning yellow, and finally the leaf dies or falls off, while the petiole
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How to prevent and control cotton seedling diseases? Take multiple measures to ensure strong seedlings
Because rain kept falling continuously during the cotton sowing period and after emergence, this year's seedling death is more serious than in previous years, and the most severe cases have already begun to be destroyed and replanted. 1. Main symptoms After cotton seedlings emerge, yellow-brown lesions appear at the base of the stem (where it meets the soil surface), gradually expand, become sunken and rotten, turn dark brown in color, and the cotton seedlings wither and die. This is typical "damping-off," commonly known by cotton farmers as "black neck" disease. 2. Causes of seedling death 1. Early sowing date and low temperature. According to forecasts from the meteorological department, the temperature in April 2008 was on average
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Why Does Corn Grow Multiple Ears? Cause Analysis and Preventive Measures
Cause Analysis and Preventive Measures for the Multiple-Ear Phenomenon in Corn
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