August cotton pest control points

1, the fourth generation of cotton ringworm: 1 occurrence and prevention period: August 4-20 is the adult spawning period, the prevention period is August 6-20, during which time the application is controlled once every 5 days. 2 use of pharmacy: A per acre with sharp shark 2 generations, Jiaken 60 ml water with 2 barrels of "snow cover" spray upper middle. B per mu with insecticide 50-60 ml plus NPV2 generation (or Olympus No. 1 2 generation) with 2 barrels of water. C to remove 40-50 ml of water per acre.
2, cotton aphid: Fuxi will continue to occur, the application of pesticides for annihilation, four seasons red, Bode, sputum, etc. with 3-4 generations per acre with water 2 barrels evenly sprayed cotton plant upper part.

3, cotton blight of yellow wilt: After the climate turns cold, blight will become the second peak of the disease, it is necessary to grasp the drug control disease, the best agent for the yellow sputum, pyrimidine nucleoside 100 ml per mu combined with pest control at the same time prevention and control. (Dangyang City Agricultural 110 Service Center, City Plant Protection Station)
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