Rapid and effective control of wheat midge

The wheat midge belongs to the Diptera family Diptera, which is a worldwide, devastating pest. The main hazard is that the larvae suck the gluten slurry and appear pods. Because of its strong concealment and difficulty in prevention and control, the harm caused is serious: if it is not controlled in time, it can generally result in a 10% to 30% reduction in wheat output, a serious reduction in production by more than 70%, and even an unrequited harvest.

Wheat midge entered the region in 2004, and its area has increased rapidly year by year. In 2011, the area of ​​wheat midge in the whole region was Cuihuangkou, Caozili, Daxingchang, Daliang, Hebeitun, Xioweqi, Nancai, and Shangmatai. The eight main towns of wheat are mainly produced, and other towns and townships will also happen a bit.

At present, wheat midge has become the biggest hidden danger affecting wheat production in the whole region. In order to effectively prevent and control the damage of wheat midge, this year's summer grain harvest will be harvested. The District Agricultural Technology Promotion Center proposes prevention and control of wheat midge insects.

(1) Prevention and control of larvae and pupal stages in the jointing of wheat to the booting stage (before and after April 25), using 5% chlorpyrifos granules 2 kg per mu or 2.5% methyl isofluosaphos granules 2 kg or 3% phoxim particles Agent 5 kg, mixed with 20 kg of slightly wet sand, sprinkled on the surface, and then watered.

(B) adult stage control of wheat 50% -70% when heading (before and after May 5), per acre with 10% imidacloprid WP 30 g or 4.5% beta-cypermethrin EC 40 ml or 40% Dimethoate 50 ml, Add 80% of dichlorvos EC 50 ml and spray 30 kg of spray water. In order to ensure the control effect, combined with the control of aphids, spraying once again after 7 days.