The wheat moth is one of the three major grain pests in China (maize, grain, and moth), and it is widespread and seriously endangered. Severe damage to rice, wheat, and its weight can be as much as 50% to 70%. Wheat moths use larvae to feed on a variety of grains, especially wheat and rice, followed by corn and sorghum. This insect pest can be bred both in the farm and in the field, and it is a serious initial pest of stored grain.
The optimum temperature for the development of wheat moth is 21-35 degrees. If the winter in the previous year is warm in July-August, the occurrence of earthworms may occur in the wheat moth.
For the prevention and control of wheat moth in grain storage, the following measures can be taken according to local conditions:
1) Covering the grain surface, can use wheat moth can not be harmed, and no other pest pests of heterogeneous grain, soy beans and other pressure cover the grain surface, the method is to fill the disparate grain with a worm-free sack, anti-infectible wheat moth food The flour is crisp and then tightly pressed onto the surface of the grain.
2) Sun exposure, in the sunny summer season, put the wheat on the field, 3-5 cm thick, flip one time per hour, hold for 4-6 hours, hot and warehousing, sealed.
3) Hypoxic storage. When food is dried and put in storage, airtight and oxygen-deficient jars, plastic bags, etc. can be used to make Hymenoptera suffocate and suffocate.
4) Light trapping. In large granaries, black light or wheat moth attractants can be used to trap and kill adult insects, and the effect is also good.
5) Chemical control: 57% of 56% aluminum phosphide tablets are placed per ton of grain in raw or grain-filled or well-sealed warehouses or pots. The use of methyl bromide for storage of grain outside the warehouse, 30 grams of medicine per cubic meter of grain, and sealed for 48 hours. The use of 1.2% grain insect net powder 1 part with 1000 parts of wheat, can maintain 1 year without pests.
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