After wheat is harvested, the original pests that harm wheat, such as thrips, worms, pupa, aphids, and streaks, will rapidly transfer to corn seedlings after corn emergence, which will harm the normal growth of corn seedlings. Horses will cause corn seedlings to distort and deform, and the leaves will not be able to stretch properly. Insect armyworms and pods will cause corn seedlings to fall short of ridges. Aphids and hoppers will spread the virus and cause corn infections. Therefore, after the wheat is harvested, strengthening the monitoring and control of maize seedling pests plays an important role in seizing the corn harvest.
The prevention and control method adheres to the principle of “prevention from prevention and comprehensive prevention and control†and focuses on agricultural prevention and control, and appropriate prevention and treatment with chemicals. Apply ripe organic fertilizer, at the same time pay attention to remove weeds in the field and reduce the host area of ​​insects; use 50% phoxim EC per acre 200~250 g fine soil 20~25 kg mix well and apply after ridge; reasonable Close planting to ensure adequate plant nutrition area and strengthen field management. For fields where thrips, aphids, pupa, aphids, and planthoppers occur, use 50% phoxim 800-fold or 40% dimethoate Emulsion 500 times liquid spray, or with 90% trichlorfon 300 times spray root prevention and control, when the occurrence of aphids can be used 40% dimethoate EC spray control, concurrent treatment of Laodelphaxella, sprayed every 3 to 4 days, even spray 2~3 times.
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