What diseases do you need to control when planting cotton?

What diseases do you need to control when planting cotton? Please introduce that the diseases of cotton are different at different stages of growth. The diseases and control of cotton at seedling stage are introduced below for reference. Seedling disease-blight (dead seedlings). After the cotton seedling was unearthed, the yellow-brown disease spot appeared at the base of the stem (where it meets the land), gradually expanded, sunken, rotted, the color was black and brown, and the cotton seedling withered. Farmers are commonly known as "black neck" disease. The resistance of cotton seedlings was the weakest within 15 days after being unearthed, and the disease of cotton seedlings with low temperature and high humidity occurred seriously, and the continuous cropping became more and more serious. Therefore, the control of two points: ① sowing before coating, every 2 to 3 jin of seeds with Gaoqiao 10 ml + home Yiwei 50 grams seed coating, not only control Verticillium wilt and Verticillium wilt, but also play a role in increasing production; ② cotton seedling timely spraying prevention, the best control effect is: Ruimiaoqing 2000 times liquid + Biou 15000 times liquid, sprayed to the root and stem of cotton seedlings can effectively control the phenomenon of dead seedlings. two。 Verticillium wilt. Both Fusarium wilt and Verticillium wilt can harm the vascular bundle tissue of cotton, resulting in vascular bundle blockage, yellowing, drying and shedding of cotton leaves, turning cotton plants into light stalks, wilting and even withering. Prevention and control methods: 1. Prophase prevention: in the early stage of cotton growth (May 25, June 23) to carry out two necessary medicament prevention, choose Ruimiaoqing (2000 times liquid) + home Yiwei (750x liquid) spray, the control effect is as high as 90%. two。 Spraying root irrigation with Ruimiaoqing (2000 times liquid) + Jiayiwei (750times liquid) or Haolike (5000 times liquid) + Fusarium wilt Great Savior (750x liquid) can effectively control the development of the disease. Click to get more cotton planting technology click to get more food crop planting technology