绿化苗木产药害的原因
The cause of pesticide damage of green seedlings
1、药剂种类选择不当
1. Improper choice of agent type
如波尔多液含铜离子浓度较高，多用于木本植物，草本绿化苗木由于组织幼嫩，易产生药害。石硫合剂防治白粉病效果颇佳，但由于其具有腐蚀性及强碱性，用于香樟树等草本绿化苗木时易产生药害。
For example, Bordeaux liquor with high concentration of copper ions is mostly used for woody plants. Because of its tender tissue, herbaceous green seedlings are prone to drug damage. The control effect of the mixture is good, but because of its corrosiveness and strong alkalinity, it is easy to produce pesticide damage when it is used to afforest the seedlings of Cinnamomum camphora and other herbs.
2、部分绿化苗木对某些农药品种过敏
2. Some green seedlings are allergic to some pesticide varieties
有些绿化苗木性质特殊，即使在正常使用情况下，也易产生药害。如三色栾树、大叶女贞、樱花等对敌敌畏敏感，桃、梅类对乐果敏感，桃、李类对波尔多液敏感等。
Some green seedlings have special properties, even in normal use, they are easy to produce drug damage. For example, Luan tree, Ligustrum lucidum and cherry are sensitive to dichlorvos, peach and plum are sensitive to dimethoate, peach and plum are sensitive to Bordeaux.
3、在绿化苗木敏感期用药
3. Use medicine in the sensitive period of greening seedlings
各种绿化苗木纤维 驱鸟设备 保定通风管道 塑料土工格栅 检查井模具 流水槽模具 锻造厂家 华尔街铜牛的开花期是对农药最敏感的时期之一，用药要慎重。
The flowering period of all kinds of green seedlings is one of the most sensitive periods to pesticides, so the use of drugs should be cautio