Wheat aphids, also known as insects, are one of the important pests in wheat production. It is damaged by sucking and sucking after wheat heading, resulting in insufficient grouting of wheat, lack of grain, and a decrease in grain weight, which causes a reduction in yield. In addition, wheat bran is an important insect vector for transmitting plant virus diseases. Comprehensive prevention mainly includes the following aspects:
1. Agricultural control. Selection of anti-Mai Xifeng products; grass spring pressure, remove weeds.
2. Protect and use natural enemies. It is necessary to pay attention to improving drug application techniques, selecting safe selective agents, reducing the number and quantity of drugs used, and protecting natural enemies from harm.
3. Chemical control. Wheat heading-filling stage is the peak stage of wheat aphid spike attack. Chemical control is the main measure to control wheat aphid. The prevention and control indicators for the panicle planting rate of about 50%, 100 strains when the amount of 500 or so, should immediately organize chemical control. Spray can be used 3% acetamiprid wettable powder 20 ~ 30 grams / acre, 10% imidacloprid 2000 ~ 2500 times, 2.5% Kung Fu EC 1500 times. Combined spraying foliar fertilizer plus spray fertilizer, monopotassium dihydrogen phosphate and other micro-fertilizer sprays can be used to achieve the purpose of promoting full ripeness of wheat grain, increasing grain weight, preventing dry hot wind, and increasing yield.
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