选用农药时必须注意的几个问题编者按：近年来，随着果树生产发展的需要，市售适于果树病虫的农药品种繁多，有许多果农来信询问在选购和使用农药中应注意的问题，现请我所植保专家景学富研究员予以答复。近几年来，我省一些果区，在选用农药中，曾出现过上当受骗、人畜中... Editor: In recent years, with the development of fruit trees and the need for the development of commercial pests suitable for pests and diseases of fruit trees wide variety, there are many fruit farmers letter asked in the purchase and use of pesticides should pay attention to Question, now I plant protection experts Jing Xuefu researcher to answer. In recent years, some fruit growing areas in our province, in the selection of pesticides, there have been deceived, livestock and poultry ...