Avi chlorpyrifos control rice leaf roller

In order to clarify the control effect of the chlorpyrifos series pesticides on rice leaf roller, in the middle and late May of 2010, Ganzhou Xingu Biochemical Co., Ltd. conducted a field efficacy test in Nanning, Guangxi. Set a high g per acre with 15% Avi chlorpyrifos EC 100 ml, 15% Avi chlorpyrifos EC 150 ml, 15% Avichlor chloridoxin EC 100 ml and 4 blanks, 30 kg water per acre Fine spray. Each treatment was repeated 3 times, and the number of insects was investigated on the 1st, 2nd, 7th, and 15th days after the drug.

The experimental data showed that after 1 day, 2 days, 7 days, and 15 days after treatment, the control efficacy of using 100 grams of high-gram 15% chlorpyrifos emulsion per acre was 71.2%, 90.2%, 95.1%, and 90.6% per acre. The control efficacy of using 150 mg of chlorpyrifos emulsifiable concentrate with 15% of Avastin was 75.6%, 92.5%, 97.0%, and 92.1%, respectively. The control efficacy of using 100% of the chlorpyrifos emulsifiable concentrate of 15% A. cerevisiae per acre was 62.0%. 72.5%, 95.6%, and 99.2%.

Production control of rice leaf roller, it is recommended to control the appropriate period, the use of high g per acre 15% chlorpyrifos emulsion, heavy carbendazim 15% chlorpyrifos EC, Green Xian An 15% AIDS chlorpyrifos EC 100-150 In milliliters, 30 kilograms of fine spray of water is added, and the peak of dead insects can be reached within 48 hours after drug treatment. The effective period is more than 15 days.