Trichogramma is one of the effective methods for biological control of corn borer. It has good control effect, saving time, labor and easy operation. Prevention and treatment time: During the corn trumpet season or when a piece of eggs is found per 100 maize plants, the eggs can be hatched. How to use: Use 2-3 pieces of Trichogramma Egg (used according to the severity of corn borer) once per acre. Specific steps: Every 26 meters long × 25 meters wide (one acre) is a running point; about 50 ridges apart For one thing, the length is about 40 steps, and the result is a checkerboard type. The distance between the two sides of the farming system is halved. The Trichogramma oocytes were placed on the main veins on the back of the leaves to prevent the Trichogramma eggs from falling off and dying. At the same time, they played a role in preventing rain and sun protection (high temperature would cause Trichogramma eggs to dehydrate and die). The second and the first interval of 5-7 days, the use of the same method, but pay attention to the placement and the previous staggered, increasing the control effect. Storage and transportation methods: Trichogramma eggs are stored at low temperatures (3-5°C) and can be stored in refrigerators or incubators and transported at low temperatures. Precautions: Use of pesticides during the control of corn borers with Trichogramma is prohibited so as to avoid killing Trichogramma species when controlling other insect pests. Iron clips must not be used to avoid death and death from livestock accidental eating. Inner Mongolia Fengqi Seed Industry Co., Ltd.
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