How does Trichogramma control corn diseases and insect pests?

What is Trichogramma? How does Trichogramma control corn diseases and insect pests? There are no netizens to help introduce the data of Trichogramma in the farming network, and the methods of using Trichogramma to control corn diseases and insect pests, which are listed below for netizens' reference. Introduction of Trichogramma: Trichogramma is a kind of parasitic natural enemies in nature. among the natural enemies, it is the smallest, with a body length of only 0.5 mm, because its compound eyes are red, so it is called Trichogramma. There are many species of Trichogramma in nature, including corn borer Trichogramma, pine caterpillar Trichogramma, borer Trichogramma, Australian Trichogramma, wide Trichogramma, rice borer Trichogramma and so on. Some species control more than 10% of pests in nature. Trichogramma can kill about 70% of corn pests and reduce the rate of stem decay of corn pests by more than 30%. In the ear stage of corn, it can also control the occurrence of corn ear rot caused by insect pests and reduce the yield loss. At the same time, it can also save the labor and expenditure of farmers in spraying pesticides, improve grain quality, change grain production to green and pollution-free, form a virtuous circle of biological chain, and lay a foundation for maintaining agricultural ecological balance and agricultural sustainable development. Trichogramma can control pests: Trichogramma can kill corn borer, cotton bollworm, cabbage night E, cabbage green worm and other Lepidoptera pests, can be widely used in corn, cotton, fruit trees, vegetables and other crops. The operation method of Trichogramma to control corn diseases and insect pests: a total of 15000 heads of corn were released per mu, 7000 heads were released for the first time, and 8000 heads were released for the second time. Set up 1 release point per mu. Starting from the edge ridge of the bee release field, the 20th ridge is the first release ridge, 20 steps along the first release ridge is the first release point, and then 40 steps along the ridge is the second release point, so as to push it to the ground. and then 40 ridges down from the first release ridge into the second release ridge, and so on. Generally put the bee in the morning, in the bee place, choose the middle leaf of a corn plant, tear half of the leaf in the middle, roll it down into a cylinder, and then use straw bark or needle and thread to sew (sew) in the cylinder. Click to get more corn planting techniques click to get more food crop planting techniques