What pests and diseases need to be controlled in early spring wheat?
What pests and diseases should be controlled in early spring wheat? Please provide guidance. Early spring wheat needs the following pests and diseases controlled: For controlling sheath blight and take-all, after wheat turns green in late February, use 20-30 grams of 12.5% Hexaconazole wettable powder or 50-75 grams of 15% triadimefon wettable powder per mu, mix with 50-75 kg of water, and spray evenly on the stem base to prevent...
What pests and diseases should be controlled in early spring wheat? Please provide guidance.
Early spring wheat needs the following pests and diseases controlled:
For controlling sheath blight and take-all, after wheat turns green in late February, use 20-30 grams of 12.5% Hexaconazole wettable powder or 50-75 grams of 15% triadimefon wettable powder per mu, mix with 50-75 kg of water, and spray evenly on the stem base to control wheat sheath blight. For plots with take-all, use 150 grams of 15% triadimefon wettable powder per mu, mix with 75-100 kg of water, and spray on the wheat stem base to reduce the incidence rate at the heading stage.
For controlling underground pests: In fields with underground pest occurrence in early to mid-March, use 40% phoxim emulsifiable concentrate diluted 800 times for root drenching at the affected areas, and appropriately expand the treated area.
Chemical weeding: For weed control, grasp the key word "early." For wheat fields mainly infested with broadleaf weeds such as flixweed, shepherd's purse, and corn gromwell, use 1-1.8 grams of 75% tribenuron-methyl dry suspension concentrate per mu; for wheat fields mainly infested with grass weeds such as jointed goatgrass, wild oat, and bromegrass, use 60-70 mL of 6.9% fenoxaprop-P-ethyl emulsifiable concentrate or 25-30 mL of 3% mesosulfuron emulsifiable oil per mu; for fields with severe infestation of cleavers and speedwell, use 50-60 mL of 20% fluroxypyr emulsifiable oil per mu; for fields with mixed broadleaf and grass weeds, use 20-25 mL of 3.6% mesosulfuron-iodosulfuron per mu, add 30-40 kg of water for foliar spray control, ensuring no repeated or missed spraying. To prevent phytotoxicity to subsequent crops, the application time must be before March 10.
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