What is the name of the bug in the corn, what is the name of the black bug on the corn

The bugs in corn are called corn borers.

Corn borer is the main insect pest of corn, belonging to the lepidoptera and moth family, which can harm all parts of the corn plant on the ground, make the damaged part lose its function and reduce the grain yield.

Corn borer is suitable for development under high temperature and high humidity conditions, and the temperature is high in winter, and the number of natural enemies is small, which is conducive to the reproduction of corn borer, and the harm is serious. The damage of corn borer is mainly because the leaves are bitten by larvae, which will reduce their photosynthetic efficiency; The male panicle is moth-eaten and often easy to break, affecting pollination.

The black bug on corn is called corn borer.

Corn borer, also known as corn borer, belongs to the order Lepidoptera, moth family, corn borer in China has two kinds of Asian corn borer and European corn borer, mainly for corn, sorghum, millet, etc., but also for cotton sugarcane, sunflower, rice, sugar beet, sugarcane beans and other crops, belongs to the world pest.

There are many kinds of natural enemies of corn borer, mainly parasitic egg red-eyed wasps, black egg wasps, parasitic larvae parasitic flies, Beauveria bassiana, bacteria, viruses, etc. Predatory natural enemies include ladybugs, walking insects, grass dragonflies, etc., all of which have a certain inhibitory effect on the insect population. The red-eyed wasp is an egg-parasitic insect predator.

It can parasitize in the eggs and larvae of a variety of agricultural, forestry, fruit corn borer adults and vegetable pests. It is used for the prevention and control of corn borer, which is safe, non-toxic, pollution-free, simple and effective. Release red-eyed bees during the egg-laying period of corn borer, and choose a large area on sunny days to release bees.

The amount and frequency of bee release are determined according to the number of moth eggs. Generally, 150,000 300,000 heads are released per hectare, released in two parts, 45 points per hectare, select robust corn plants at the point, on a leaf surface in the middle of it, tear it in half along the main vein, take half of it and put it on the bee card, gently roll it into a cylinder along the direction of the stem, the leaves should not be rolled too tightly, and the bee card will be nailed firmly with threads and nails. It should be mastered in the later stage of the pupa of the red-eyed bee, released when the bees emerge individually, and the bee cards can appear in large numbers after hanging them in the field.

This is: the corn borer, that is, the larvae of the corn borer moth, specializes in eating corn, which is harmless to humans, but it is an agricultural pest.

The larvae of corn borer, the most common pest in corn planting and growth, are not poisonous, and the effect of killing with dichlorvos, trichlorfon and phosphine is good.

This pest is also often found in harvested ears of corn.

This insect is not poisonous, a bit like the cabbage worm.

Corn insect medicine: 1. Kill overwintering larvae. In the early stage of pupation of larvae after winter of corn borer, treatment of straw (firewood) to reduce the source of insects and reduce the number of pupation emergence.

2. Exterminate adult insects. Because the corn borer adults are active at night and have strong phototaxis, they can be set up with frequency vibration insecticidal lamps, black lights, high-pressure mercury lamps, etc. to trap and kill corn borer adults, generally in late May to start trapping and end at the end of July, the sun sets at night and turns on the light, and the sun comes out in the morning to close the light. This traps not only the adult corn borer, but also all phototaxis pests.

3. Insecticidal eggs. The red-eyed bee eggs are parasitic in the eggs of the corn borer to absorb its nutrients, resulting in the death of the corn borer eggs and the hatching of the red-eyed bee.

4. Kill field larvae. Homemade granules can be sprinkled into the corn heart leaves to kill corn borer larvae.

Pyrethroid insecticides are effective in removing the leaves quickly from newborn pupae so as not to grow more.

Biological control

Release the red-eyed bee, which is a natural enemy of egg-parasitic insects, which can parasitize the eggs and larvae of a variety of agricultural, forestry, fruit corn borer adults and vegetable pests. It can be used to control corn borer, and it is safe, non-toxic, pollution-free, simple and effective.

Release red-eyed bees during the egg-laying period of corn borer, and choose a large area on sunny days to release bees. The amount and frequency of bee release are determined according to the number of moth eggs. Generally, 150,000 300,000 heads are released per hectare, which can be released in two parts, 45 points per hectare, select strong corn plants on the point, on a leaf surface in the middle of it, tear it in half along the main vein, take half of it and put it on the bee card, gently roll it into a cylinder along the direction of the stem, the leaves should not be rolled too tightly, and the bee card will be nailed firmly with thread and nails.

It should be mastered in the late stage of the pupa of the red-eyed bee, released when the bees emerge individually, and the bee card can appear in large numbers after hanging it in the field at 1 point.