What are the prevention and control methods of cotton damping-off?

(1) Agricultural control: conduct winter irrigation to keep soil moisture and avoid lowering ground temperature due to irrigation before sowing; Early tillage, timely loosening soil after rain and raising ground temperature can enhance the disease resistance of cotton seedlings. ② Seed treatment: Before sowing, mix 1 kg of 40% pentachloronitrobenzene powder with 100 kg of cotton seeds, or 100 kg of cotton seeds with 0.3 kg of 25% diuron. Or seed dressing with 0.5 kg and 100 kg of Wuduo mixture (40% pentachloronitrobenzene +25% carbendazim), or 0.5 kg and 100 kg of 40% wettable powder, or 0.5 kg and 65438 of 70% thiophanate methyl wettable powder.