山东一次性水晶餐具

1、药剂种类选择不当

1, improper choice of reagents

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，用于香樟树等山东绿化苗木

时易产生药害。

Such as Bordeaux mixture containing copper ion concentration is higher, for woody plants, herbaceous green seedlings as young, easy to produce injury. The effect is quite good control of powdery mildew in lime sulfur mixture, but because of its high corrosion resistance and strong alkaline, camphor tree and herbaceous green seedlings for easy to produce injury.

2、部分绿化苗木对某些农药品种过敏

The 2 part, green seedlings allergic to certain pesticides

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 of the special nature of green seedlings, even under normal conditions of use, but also easy to cause injury. Such as the color of Koelreuteria paniculata, Ligustrum lucidum, cherry and so on were sensitive, peach, plum of dimethoate sensitive, peach, li of Bordeaux mixture sensitivity.

3、在绿化苗木敏感期用药

3, in the sensitive period of use of green seedlings

各种绿化苗木的开花期是对农药最敏感的时期之一，用药要慎重。

Blossom period all kinds of green plants is one of the most sensitive period of pesticide, medication should be cautious.

4、高温、雾重及相对湿度较高时易产生药害

4, high temperature, heavy fog and the relative humidity is high, is easy to cause injury

温度高时，香樟树苗木吸收药剂及蒸腾较快，使药剂很快在叶尖、叶缘集中过多而产生药害；雾重、湿度大时，药滴分布不均匀也易出现药害。

When the temperature is high, camphor tree seedlings absorb chemicals and evaporates quickly, make the medicine soon in the tip of leaf margin, and too much and phytotoxicity; heavy fog, humidity is big, the uneven distribution of droplets is also prone to injury.

5、浓度过高、用量过大

5, concentration is too high, excessive

为克服病虫害之抗性等原因而随意加大浓度、用量，易产生药害，是很多香樟树等苗木产生损害的重要原因之一。

To overcome the resistance of plant diseases and insect pests and arbitrarily increase the concentration, dosage, easy to produce injury, is one of the important reasons of camphor tree seedlings have a lot of damage.