What are the control methods for peanut stem rot?
How to control peanut stem rot? (1) Keep good seed: choose summer peanuts for seed saving. Choose a sunny day to harvest early, sun-dry, and store in a dry place; before sowing, select healthy, large seeds. (2) Seed disinfection: 50% carbendazim wettable powder at 0.3% of the seed rate, 25% carbendazim wettable powder at 0.5% of the seed rate, mix with 5-10 times fine dry soil, and mix in layers onto peanut seeds soaked for 12 hours, or add 30 kg of water, soak 50 kg of seeds for 24 hours, stirring 2-3 times in between.
How to control peanut stem rot?
(1) Keep good seed: choose summer peanuts for seed saving. Choose a sunny day to harvest early, sun-dry, and store in a dry place; before sowing, select healthy, large seeds.
(2) Seed disinfection: 50% carbendazim wettable powder at 0.3% of the seed rate, 25% carbendazim wettable powder at 0.5% of the seed rate, mix with 5-10 times fine dry soil, and mix in layers onto peanut seeds soaked for 12 hours, or add 30 kg of water, soak 50 kg of seeds for 24 hours, stirring 2-3 times in between.
(3) Crop rotation: rotate with cereal crops; for light disease, rotate for 1-2 years out of four; for heavy disease, rotate for 2-3 years.
(4) Clean up diseased plant residues in the field: after peanut harvest, promptly clean up diseased plant residues and plow deeply to reduce the accumulation of pathogens in the soil.
(5) Spray control: use 50% carbendazim wettable powder at 1000 times dilution, spraying once at full seedling emergence and once before flowering.