一、乐果、氧化乐果杏、李树对其稀释倍数小于1500倍的乳油敏感。桃树对其稀释倍数小于1000倍的乳油敏感。因此在使用时应先进行小区试验,确定安全施用浓度后再进行大面积施用。二、三氯杀螨醇山楂和苹果树中的红玉、旭日等品种对其格外敏感、易产生药害,不宜使用。 First, dimethoate, omethoate apricot, plum on the dilution of less than 1500 times sensitive to EC. Peach sensitive to the EC diluted less than 1000 times. Therefore, when using the cell test should be carried out to determine the safe use of large concentrations of application. Second, dicofol hawthorn and apple tree ruby, the sun and other varieties are particularly sensitive to its susceptible to injury, should not be used.