Culture methods of corn insects

Corn insects often appear in corn and other species, and their whole body is dark yellow. Here are the methods of corn insect culture.

1. Methods of corn insect culture

Cultured corn worms can normally grow and reproduce at a temperature of 20 to 40 degrees. Each female can lay 1000 eggs when fed with corn straw. Corn worms are usually found in rice, corn, sprinkles and other items.

Second, what are the consequences of accidentally eating corn insects?

The corn worm itself does not contain harmful substances and will not cause harm to the body. the main tissue composition of the corn worm is also protein, which will be broken down and metabolized into sugars, amino acids and trace elements after accidentally eating into the digestive tract.

3. Control techniques of corn borer

1. Trichogramma kills eggs

Corn borer Trichogramma or pine caterpillar Trichogramma were released for 3 times at the beginning, early and peak stages of oviposition, with 150000-300000 bees / hm2 each time, and 75-300000 bees / hm2. When releasing the bee, the bee card is sandwiched in the axilla of the fifth or sixth leaf of the lower part of the corn plant after variable temperature exercise.

two。 Using Beauveria bassiana to control borer

In the heart leaf stage, 10-20 times per gram of Beauveria bassiana mixed with slag particles containing 5 billion-10 billion conidia were sprinkled into the heart leaf cluster, 2g per plant. The remaining corn stalks can also be stacked before pupation after the overwintering larvae recover in spring, and the powder of Beauveria bassiana produced by soil method can be sprayed in layers in the straw stack according to 100-150g/m3.

3. Using Bacillus thuringiensis to control borer

Bacillus thuringiensis variety, wax borer variety and Kuerstark variety have strong pathogenicity to corn borer. Industrial products are mixed into granules containing 100-200 million spores per gram, and the ends of heart leaves are sprinkled into heart leaf bushes, 2g per plant, or perfused with 2000 times diluted solution of BT powder 750/hm2. Bt200-300fold solution can be irrigated on the filaments of female ear during panicle stage.

The above is the cornworm related information, hope to be helpful to you.