近几年,果树药害时有发生,轻者叶、花、果、芽出现斑点或焦枯;重者造成落叶、落花、落果,甚至枯死。为防止和减轻果树药害枯来的损失,现将受药害的原因分述如下,以利于预防。 1.耐药性不强的树种易发生药害我们常说的对药剂反应敏感就是耐药性差的表现。生产实践表明, In recent years, fruit tree injury occurs from time to time, the light leaves, flowers, fruit, buds appear spots or scorch; heavy cause deciduous, falling flowers, fruit and even dead. In order to prevent and reduce the loss of fruits and trees withering, the reasons for the injury now are as follows, in order to facilitate prevention. 1. Resistance is not strong tree species prone to phytotoxicity We often say that the response to the drug is poor resistance to performance. Production practice shows that,