Temperature rises in early summer to prevent and control wheat aphids
Occurrence
It is expected that this year's wheat earliest crops will occur more seriously and occur locally, with an area of ​​800,000 mu. As the temperature rises, the wheat bran will enter a stage of rapid growth. In recent days, the temperature and suitable temperature and humidity in the field are suitable. It is very beneficial to the breeding of aphids. Failure to timely carry out prevention and control will result in serious reduction of wheat production. Therefore, the plant protection departments of all districts and counties should attach great importance to combining this year's favorable opportunity for the implementation of the “one spray and three preventions†project of wheat. Farmers are organized to quickly set off the climax of locusts in the wheat earlines to ensure a good summer harvest this year.
Control indicators
One hundred strains of maggots have reached 500 heads, and the number of pod strains has reached 50%.
Control methods
Apply 20% triadimefon 50ml + 10% imidacloprid 20g - 30g + 4.5% beta-cypermethrin 40-50ml + 99% potassium dihydrogen phosphate 40g with appropriate amount of water per acre; also combine wheat in the middle and late stages "One spray and three defenses" at the same time (a spray: spraying insecticides, fungicides and foliar fertilizer. Three defenses: anti-powdery disease, pest control, prevent premature aging). Through active and effective prevention and control, the locusts can be reduced, the weight of wheat grains can be increased, and the wheat yield can be guaranteed.
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