Corn borer is the main pest of corn. Before the corn has landed in China, corn borer has already existed. Because of its polysaccharide and tenderness, the information released by corn in the field is easily captured by adult corn borer, so corn is more harmful to corn borer than other crops.
So far this year, except for the northern part of the northeastern region, the first generation of corn borer in most areas has ended or is nearing completion. However, everyone must not be taken lightly. Expected in late mid-August, the southern Northeast China, southern North China, Huang-Huai, JAC and other places rainfall than normal over the high side, and the average temperature will be higher than the same period the year, hot and humid environment can easily lead to the second generation, Three generations of corn borers have spread.
It is expected that in the future, the first generation of corn borer will be more serious in the central and western Heilongjiang. The second generation of corn borer will occur in Liaoning Province. The middle and western Jilin, eastern Inner Mongolia, North China and Southwest China will occur moderately. The cricket will occur in most of the Huanghuaihai.
For corn bran, you can control it by spraying BT wettable powder, installing a projection insecticidal lamp, and releasing Trichogramma.
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