Sorghum planting: what is sorghum bacterial red streak?
What is sorghum bacterial red streak disease? Please give an introduction Red sorghum bacterial red streak mainly damages leaves. The leaf spots were narrow and thin spots like water stains at the beginning, and became light reddish brown after expansion. Some spots become brown in the center, red edge, intermittent in the stripes appear wide long oval spots. Sometimes the lesions can cover most of the leaf area. When humidity is high, small granular bacterial seedlings can be seen to overflow pus, which becomes scale-like thin layer after drying. Distribution in Hebei, Henan, Shandong, Jiangsu, Hubei and other provinces. The suitable growth temperature of bacterial red streak disease of red sorghum is 28 - 30℃, the highest is 36 - 37℃, and the lowest is about 4℃. Death at 51℃ for 1o minutes. Besides sorghum, the fungus can also harm millet. Control methods: (1)Choose disease-resistant varieties. (2)Strengthen field management to prevent disease. Click for more sorghum cultivation technology Click for more grain cultivation technology
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Sorghum planting: how to control sorghum aphids?
How to control sorghum aphids? Please introduce effective control methods. Sorghum aphids are the main pests on sorghum. Most of the body colors are light yellow and a few are purplish red. It gathers on the back of the leaves and gradually spreads from the bottom leaves to the middle and upper leaves to absorb juice. It seriously harms the growth and development of sorghum. ...
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Sorghum planting: how to control sorghum drill beetle?
How to control sorghum drill beetle? Please guide the method to control sorghum drill, which is the main pest of sorghum and corn. Sorghum drill overwinters as mature larvae in sorghum and corn stalks, and a few overwintering in corn ear axis. Adults have phototaxis, spawning at heart-leaf stage in spring and corn in summer.
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