To select the appropriate variety, it is necessary to select pesticides that have a significant effect on the control object, have no effect on crop growth, and have less lethality to the natural enemies of the pests, such as the control of wheat bran and the use of carbendazim for the control of scab. When several pests occur at the same time, a broad-spectrum pesticide can be used for multiple treatments. For example, seed dressing with triadimefon (triazolone) can prevent sheath blight, smut, powdery mildew, rust, etc. The species have good control effects on underground pests, wheat stubble and some viral diseases.
Highly toxic pesticides such as 3911, carbofuran, etc. can only be used for seed dressing or soil treatment, and spraying is strictly prohibited.
The optimal dose is optimally controlled by a variety of factors such as the resistance of the crop variety, the extent and timing of the occurrence of the pest and the disease, and environmental conditions. For example, prevention and control of wheat rust and powdery mildew, only 3 to 5 grams of rust-free per acre can be used for disease-resistant varieties or lightly occurring, and 7 to 10 grams of rust-free per acre for susceptible varieties or re-occurrence.
Master the best control period According to the prevention and control indicators of each pest and pest, determine the corresponding prevention period. When multiple pests and diseases occur, it is necessary to clarify the main pests and their occurrence dynamics, comprehensively determine the main and concurrent treatment targets, and coordinate the medication use period, such as the selection of the critical period in the middle and late stages of wheat, mixed spray with fungicides and insecticides. The main pests can be controlled once.
Prevention of pest and disease resistance The combination of chemical control and other control measures or the use of compounded preparations for rotation and other drugs can delay or prevent the emergence of pest and disease resistance.
Highly toxic pesticides such as 3911, carbofuran, etc. can only be used for seed dressing or soil treatment, and spraying is strictly prohibited.
The optimal dose is optimally controlled by a variety of factors such as the resistance of the crop variety, the extent and timing of the occurrence of the pest and the disease, and environmental conditions. For example, prevention and control of wheat rust and powdery mildew, only 3 to 5 grams of rust-free per acre can be used for disease-resistant varieties or lightly occurring, and 7 to 10 grams of rust-free per acre for susceptible varieties or re-occurrence.
Master the best control period According to the prevention and control indicators of each pest and pest, determine the corresponding prevention period. When multiple pests and diseases occur, it is necessary to clarify the main pests and their occurrence dynamics, comprehensively determine the main and concurrent treatment targets, and coordinate the medication use period, such as the selection of the critical period in the middle and late stages of wheat, mixed spray with fungicides and insecticides. The main pests can be controlled once.
Prevention of pest and disease resistance The combination of chemical control and other control measures or the use of compounded preparations for rotation and other drugs can delay or prevent the emergence of pest and disease resistance.
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