Cotton rotten peach is caused by what?

What causes cotton rot? Please give an introduction Cotton rotten peach is mainly caused by frequent rainfall accompanied by high temperature and high humidity, so that cotton rotten peach suddenly rose, according to the investigation on August 25, hill cotton area plant flat rotten peach 1-1.5, plain lakeside cotton area plant flat rotten peach about 2. The first batch of cotton picked back by some farmers is basically rotten peach blossoms. According to the survey data from various places, the degree of rotten peaches varies greatly. For example, early maturing varieties and varieties with low fruit branch growth nodes have more rotten peaches; early sowing and less transplanted cotton have more rotten peaches; partial application of nitrogen fertilizer and cotton field shade have more rotten peaches; planting density is too high; low terrain and poor drainage have more rotten peaches; and disease and insect control is poor. According to field anatomy, 62.7% of rotten peaches were invaded by disease insects. The above analysis shows that the prevention of rotten peaches is regular and feasible. Therefore, in guiding cotton production, the strategies for preventing peach rot should be to avoid autumn rain and borer pests in selecting varieties, to improve growth environment in improving means, to reduce invasion routes of pests and diseases in chemical control, and to seek advantages and avoid disadvantages in comprehensive measures. First of all, we should choose the right variety. Hilly cotton area should choose early maturity or early maturity of cotton varieties. Cotton varieties with middle maturity or early middle maturity and higher fruit branch bearing node position should be selected in plain cotton area. Among the selected varieties, it is advocated to use insect resistance and disease resistance cotton seeds. Second, adjust cultivation techniques. (1) Sowing and planting period should not be advanced, sowing in early and middle April and transplanting in early May are appropriate;(2) Wide and narrow row planting should be carried out, row spacing should be expanded, planting density should be reduced, especially hybrid cotton only needs to be planted with 1500-2000 plants per mu;(3) Early buds of lower 1-2 layers of fruit branches should be removed to promote more peach trees and early autumn peach trees in middle stage;(4) Scientific chemical regulation should be carried out to shape plant type convenient for ventilation and light transmission;(5) Empty branches, old leaves and invalid flower buds in late stage should be completely cut off. Third, based on disaster prevention and disease prevention. (1) deep ditch lifting field to reduce groundwater level to prevent waterlogging damage;(2) prevention of third and fourth generation cotton bollworm and early boll disease;(3) snatching dangerous peaches and striving for good in rot. Click for more cotton growing technology Click for more food crop growing technology