由于花卉种类的不同，植物生长发育阶段的差异，往往使一些常见花卉在使用农药时发生药害，轻者出现落叶、落花、落果，重者导致植株死亡，造成很大损失。因此，对于农药比较敏感的观赏类植物，正确选择农药尤为重要。下面对常见农药造成的药害做一大略介绍。 乐果、氧化乐果： Due to the different types of flowers, differences in the stages of plant growth and development tend to cause phytotoxicity when some common flowers are used. Pests, deciduous flowers, fallen flowers, and fallen fruits are the lesser, leading to death of plants and heavy losses. Therefore, the more sensitive pesticides ornamental plants, the correct choice of pesticides is particularly important. The following pesticides caused by common pesticide do a rough introduction. Dimethoate, omethoate: