Control of Carya cathayensis Flower Bud maggot

Carya cathayensis flower bud maggot is the main pest that harms the flower bud of Carya cathayensis. Because the insect is small and concealed, the occurrence period is short, and the harm is serious, once the effective control period is lost, the yield of Carya cathayensis will be seriously affected. In order to effectively guarantee the yield of hickory this year, scientists and technicians put forward some suggestions on how to carry out effective control: first, it is necessary to grasp the two effective control times for the growth of male flowers and the early formation of female buds to carry out crown spraying, and ground spraying can also be used to kill unfeathered pests in the ground. Second, it is necessary to select the right varieties of pesticides, and do not blindly increase the amount of medicine and the mixed use of many kinds of pesticides. 25% of the insecticides are sprayed on the ground, and the net of insects is 500 times. The spray on trees can be sprayed with 25% of Guangzhi EC and 600-800 times of poisonous silk EC. Pay attention to make the liquid penetrate into the flower buds during spray control. Third, the use of highly toxic and high residual pesticides such as omethoate and methamidophos is strictly prohibited to ensure the safety of people, food and the ecological environment.