Formula 1: 5-65438+70% imidacloprid wettable powder 00g+2.5% beta-cypermethrin emulsion in water 80ml+45% tebuconazole prochloraz 25g+98% potassium dihydrogen phosphate 200g+0.0 1% brassinolide 8-/kloc-per mu.

Formula 2: 70% imidacloprid wettable powder 3000 times solution +4.5% beta-cypermethrin EC 1000 times solution+17% zolyl ether epoxiconazole suspension 2000 times solution +98% potassium dihydrogen phosphate 200 times solution +0.0 1% brassinolide aqueous solution.

Formula 3: 5% acetamiprid EC 2000 times solution +48% tebuconazole suspension 2000 times solution +98% potassium dihydrogen phosphate 200 times solution +0.0 1% brassinolide 1000 times solution per mu. Add 50 liters of water per mu and spray evenly.

The purpose and time of "one spraying and three prevention" for wheat

In order to reduce the number of spraying and achieve the purpose of controlling pests and dry and hot air at the same time, "one spraying and three prevention" is carried out. With the advantages of high efficiency, good effect, labor saving and time saving, one spraying and three prevention has been proposed to be widely popularized in the main winter wheat producing areas in China in the near future.

Wheat "one spraying and three prevention" should implement the plant protection policy of "prevention first, comprehensive prevention". The best time for "one spray and three defenses" is generally from April 17 to May 15. That is to say, wheat is most vulnerable to all kinds of pests and natural disasters at the same time from heading to filling stage.