The prevention and control of pesticides in early spring is an important method to control wheat sheath blight. At present, there are many drugs used in the production, such as Jinggang wax buds and Jinggang Bacteria, but these medicines have a short duration of validity, and farmers often wait until after the onset of the disease, and the effect is poor. Thiofloxacin is a benzoic acid bactericide, registered for the control of rice sheath blight, highly selective, better control of rust, smut, sheath blight and other diseases, the effective period of 30 to 45 days .
In recent years, studies on the use of thiadicarb in wheat have been conducted. The experimental data show that, on March 5 and March 15 before the beginning of jointing of wheat, 10 ml of 24% thiofuramide suspension was used per acre, and 20 ml was used. The control efficacy against sheath blight was 94.38%, 97.78%, 97.41%, and 97.41% respectively for 30 days after the drug, and the white spike rate was 0; and it was adopted after the jointing of wheat on April 5 and April 15. The same agent treatment, the control effect on wheat sheath blight was significantly reduced. The test results showed that before the jointing of wheat, it was the best period to control sheath blight, with 10 to 20 ml of 24% Thioferamide suspension per acre, which could effectively control the occurrence of sheath blight, reduce white spikes, and significantly increase yield. effect.
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