It is the key for timely control of corn core borer to seriously affect maize yield.

Wheat has been harvested for more than 20 days now, corn has been planted in most areas, and corn in Northeast China has also entered the jointing stage. The management of corn is very important, which is related to the yield of corn. Corn drill is a major pest that harms the yield of corn. Here I would like to talk to you about the problem of corn heart worms.

What kind of worm is the corn drill?

Corn growers all know that corn drill worm is a kind of pest that often occurs in corn, which seriously affects the growth of corn, and even reduces the yield of corn. Corn borer, also known as corn borer, is the larva of a kind of moth. Corn drill mainly harms the stalks of corn, bites on the young leaves and stalks of corn, mostly concentrated in the center of leaves, and will bite corn in the later stage. As a result, the growth situation of maize is weak, the stalk is easy to break, and the lodging resistance is decreased. When it is serious, it reduces the yield of corn.

Prevention and Control of Corn drill Worm

If you want to control the corn drill beetle, it is best to understand the growth habits of the corn drill beetle. Only in this way can you know yourself and know the enemy and be invincible. One of the growth characteristics of corn drill beetle is that it can survive the winter in corn straw. If the straw is not cleaned up, it will easily lead to the outbreak of corn drill beetle in the second year. The corn borer reproduces very fast. It can lay about seven eggs a year, with hundreds of eggs each time. It does a lot of harm. If the weather humidity is above 60% and the temperature is about 25 degrees, it is very easy to cause the outbreak of drill worms.

Prevention and Control of Corn drill Worm

Keep the field straw clean, whether it is dried cotton, corn stalk, sorghum and other crops should be cleaned up to prevent the eggs of drillworms from overwintering.

Corn varieties with strong resistance to insect pests are selected when planting corn.

Corn borer is mostly active at night and has phototaxis, so some insecticidal lamps can be set up.

In the corn trumpet mouth period for drug delivery, this period is the best time to kill drillworms, the general use of 3% methyl isosalidophos granules, the use of no more than two jin per mu. In addition, centralized control can be carried out during the corn filling period, when drillers will harm corn grains, and growers can wipe the top ear and filaments of corn with 50% methamidophos EC 800 / 1000 times. However, this method is more troublesome to operate.

It can also be sprayed with avermectin, chlorobenzamide and cyhalothrin during the corn trumpet period. Just use it according to the instructions.

The above comes from promoting agriculture through science.