山东花海花卉穴盘苗

很多时候为了保证绿化苗木的生长，会使用一些药物，不过对于这些药品的使用一定要注意，一旦使用不当不仅会造成苗木的死亡，同时也会造成药害。而据山东绿化苗木

Most of the time in order to ensure the growth of green seedlings, the use of some drugs, but for the use of these drugs must pay attention, if used improperly will not only cause seedling death and injury. According to the Shandong green seedlings base professionals, the reason why there will be damage, the main reasons are as following:

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。

A, concentration is too high, the amount is too large: to overcome the resistance of plant diseases and insect pests and other reasons and arbitrarily increase the concentration, dosage, easy to produce injury, is one of the important reasons for damaging a lot of camphor tree 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。

Two, in the green seedling sensitive period: all kinds of green seedling flowering period is one of the most sensitive period of pesticide, medication should be cautious.

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。

Three, part of the green seedlings are allergic to certain pesticides: the special nature of some green seedlings, even in normal circumstances, also easy to cause phytotoxicity. Such as tricolor Koelreuteria paniculata, Ligustrum lucidum, cherry and so on are sensitive to dichlorvos, peach, plum of dimethoate sensitive, peach, plum class of Bordeaux mixture sensitivity and so on.

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。

Improper selection of four types of agents: such as Bordeaux mixture containing high concentration of copper ions in woody plants, herbaceous green seedlings due to the tender tissues, easy to produce injury. LSSS powdery mildew effect is very good, but because of its corrosion resistance and strong alkaline for camphor tree and herbaceous green seedlings to phytotoxicity.

Five, high temperature, fog weight and the relative humidity is high, easy to produce phytotoxicity: when the temperature is high, the camphor tree seedlings absorption reagent and transpiration of faster, the medicament is soon in the leaf tip and leaf edge to focus too much and phytotoxicity; heavy fog, humidity is big, drops uneven distribution is easy to injury.