The common name of corn worm is honeyworm, honeyworm, which damages the ear of corn. It is a systemic insect pest. It mainly absorbs the juice of corn and impedes the growth of corn. It is a great harm to corn and needs special prevention and control.
Corn borers occur for 10 to 20 generations a year, and it is the period when the aphid breeds in the flowering period of corn. It is also the most severe period. If the field weeds are more serious, the occurrence of corn borers is also more serious.
General corn worms clustered on the back of leaves, heart leaves, filaments and tassels to feed, can secrete honey dew and often form black moldy in the affected parts, affecting photosynthesis, causing yellow edges of leaves; occurring on tassels will affect pollination It also led to a reduction in production. The severely damaged plants have a small ear, and the grain is not full and the baldness is long. In addition, locusts can spread maize dwarf mosaic virus and red leaf virus, causing viral disease, resulting in greater yield loss.
In addition to seed dressing with imidacloprid prior to sowing as an important preventive measure, the most common method of prevention and control at present is the spraying of chemical agents. Imidacloprid, buprofezin, acetamiprid, and omethoate are all effective. Natural enemies such as ladybugs and parasitic wasps can also be used for biological control.
The corn borers are good for prevention and control, but because the breeding and adaptability of the aphids is strong, if there are sporadic occurrences of locusts in the field, care must be taken to prevent them from taking place in large numbers. In addition, removing the weeds from the corn field and eliminating the reproductive environment of the corn borer is of vital importance.
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