After the cotton has suffered a locust plague, except for the cotton stalks in which the phloem of the main stem is completely eroded and the part of the pedicel below the cotyledon is unable to resume growth, no matter what the level of the broken end, leaves have no leaves, as long as leaves remain, most Cotton plants can resume growth. The rescue measures for the affected cotton are: First, cultivating loose soil early after the disaster. After the locust damage caused by the panel knot, the temperature decreased, the cotton plant roots can not carry out normal physiological activities, so we must seize the time cultivating and cultivating soil between plants, especially saline-alkali soil cotton fields, but also early cultivator, to prevent the return of alkali seedlings. Second, timely application of available nitrogen fertilizer. After the cotton plants resume normal growth, they must timely apply the available nitrogen fertilizer to improve the nutritional conditions of the cotton plants and promote growth and development. Third, prevent pests completely. Every leaf must be guaranteed, every bud must fight. The use of pesticides should pay attention to the selection of high-efficiency and low-toxicity pesticides to avoid phytotoxicity. Fourth, timely and reasonable pruning. After the wounded cotton plants recover, they tend to grow long, and it is unfavorable that the buds will ring as soon as possible and must be pruned timely. If the atria are not damaged, only the leaves are broken or the fruit branches are cut off, the buds and branches must be removed as soon as possible to ensure the normal growth of the atrium. For example, when budding off the top of the head, leaves with broken leaves or a few fruit branches, sprouts occur in the upper part of the main stem, and then one or two new buds are selected instead of the topmost one. Before the emergence of buds into light stalks, according to the cotton field fertility and density, choose to keep the main stem in the upper part of the growth of robust 1 to 2 new shoots. If it is close to flowering, it will become light stalks. Due to limited growth season, it should strive for early buds, and it is not possible to mechanically specify the number of buds. After most buds begin to sprout, buds are removed and buds are left. Buds, appropriately early to hit the top heart and strive for more effective bell.
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