Potato planting in greenhouse to fruiting period

Use 50% to avoid aphid fog or 10% imidacloprid 5 g / mu to control aphids and cotton bollworm, alternately use dt emulsion 400ml / mu, or use 2 billion pib/ ml cotton bollworm nuclear polyhedrosis virus suspension 50ml / mu to control Helicoverpa armigera and control tobacco green insects and aphids. Before and at the initial stage of the onset of Fusarium wilt, the roots were irrigated with 3000-fold solution of Luheng No. 1, or Luheng No. 2 or Luheng No. 8, or Qingjiaoan No. 2 was sprayed or irrigated with 500-fold solution, once every 7 to 10 days, continuously for 2 or 3 times, and other diseases were also treated. The virus disease can be treated with 1000-1500 times of Zhanshangling, or A600 times of virus, or sprayed with 2% Zhongnanmycin 300 400 ml / mu, and the effect is remarkable.