date:Feb 19, 2019
etable safety is guaranteed as long as phytohormones are used reasonably.
The use of pesticides in greenhouse vegetables is also obligatory, because the greenhouse environment is hot and humid, not only suitable for vegetable growth, but also suitable for pests and fungi reproduction. Experienced growers will not overuse pesticides, because the amount of pesticides used is not proportional to the effect of insecticides. Excessive pesticides will harm plants themselves and improve pest resistanc