According to the monitoring of the provincial agricultural pest monitoring network, the current occurrence of wheat sucking insects in Hebei Province is more than 8 million mu, and the scope of occurrence will be further expanded. According to the survey, the average number of insects in the province is 9 and the highest number of insects is 1,095 (Xianghe County). The overall situation is close to 2004 and is currently in the larval rising period. Wangdu County April 11 systematic investigation, the activity of larvae has reached 41.87%, of which 0-7cm active larvae accounted for 35.5%. Anxin County survey on April 11th, the active larvae in the soil layer accounted for 97.2%, the round scorpion accounted for 2.8%, the ratio of active larvae in the 0-7cm soil layer was 77.8%, and the ratio of active larvae in the 7-14cm soil layer was 16.2%. The ratio of active larvae in the 14-20 cm soil layer was 3.2%.
Due to the low temperature in spring, the occurrence of wheat midge is delayed by 5-7 days. It is expected that the mid-term flood control period will be April 18-30. All localities should strengthen monitoring, timely warning of the appropriate control of local wheat midge, and scientific guidance for farmers.
Control method:
1. Prevention and control in the middle stage: 3-5 days before the heading of wheat (in the middle of the period), 1.5 kg of methyl 1605 powder is used for 2 kg, and 20-25 kg of moist soil is taken from the edge of the field. The powder is poured into fine. On the soil, stir repeatedly with iron shovel to make toxic soil, spread evenly in the field, and be careful not to sprinkle it on the wheat leaf. Application should be carried out at 10 o'clock in the morning without dew in the field. Watering after application to ensure control.
2, adult stage prevention and control: When the wheat heading rate reaches 70-80% (the adult swell period), the drug is immediately taken for prevention and treatment. Use 40% "Pulping" emulsifiable concentrate 60-80 ml per acre to 30 kg (or other insecticide), and spray it for prevention after 5 pm of adult activity. During the prevention and treatment, all the whole wheat in the whole control area is required to take medicine and treat the aphids.
Author: Plant Protection Station of Hebei Province
Due to the low temperature in spring, the occurrence of wheat midge is delayed by 5-7 days. It is expected that the mid-term flood control period will be April 18-30. All localities should strengthen monitoring, timely warning of the appropriate control of local wheat midge, and scientific guidance for farmers.
Control method:
1. Prevention and control in the middle stage: 3-5 days before the heading of wheat (in the middle of the period), 1.5 kg of methyl 1605 powder is used for 2 kg, and 20-25 kg of moist soil is taken from the edge of the field. The powder is poured into fine. On the soil, stir repeatedly with iron shovel to make toxic soil, spread evenly in the field, and be careful not to sprinkle it on the wheat leaf. Application should be carried out at 10 o'clock in the morning without dew in the field. Watering after application to ensure control.
2, adult stage prevention and control: When the wheat heading rate reaches 70-80% (the adult swell period), the drug is immediately taken for prevention and treatment. Use 40% "Pulping" emulsifiable concentrate 60-80 ml per acre to 30 kg (or other insecticide), and spray it for prevention after 5 pm of adult activity. During the prevention and treatment, all the whole wheat in the whole control area is required to take medicine and treat the aphids.
Author: Plant Protection Station of Hebei Province
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Lisheng Trading Co., Ltd. , http://www.jnbuckles.com