1998— 2 0 0 0年在浙江黄岩进行了窄幅机油乳剂 (敌死虫 )对柑桔的安全性试验。每年的 4月下旬至 10月上旬在温州蜜柑果园中分别用 0 .5 %的敌死虫定期喷洒 4～ 10次 (盛夏高温季节在16 :0 0后喷洒 ) ,结果表明 ,除在花蕾期使用会增加畸形花率 ,9月份以后喷洒使果实的日灼病斑稍趋明显之外 ,对落叶落果、果实的产量和质量等均无不良影响 ,但一年的累积用量宜控制在 4 %以下。 From 1998 to 2000, a safety test of citrus was carried out on a narrow range of oil emulsion (enemy insects) in Huangyan, Zhejiang Province. In the late April to early October each year, 0.5% or more of the dead insects were sprayed on the orange orchard in Wenzhou at intervals of 4 to 10 times (mid-summer high temperature season after 16:00). The results showed that, Use will increase the rate of deformity, after September spraying the sunburn spots slightly obvious fruit on the deciduous fruit, fruit yield and quality, etc. no adverse effects, but the cumulative amount of a year should be controlled at 4% the following.