摘要
在对 5种杀虫剂进行初选的基础上 ,确定 3%米乐尔颗粒剂和 4 0 %毒丝本乳油的最佳使用剂量为米乐尔每公顷用量 4 5 kg,毒丝本每公顷用量 2 2 5 0 ml,达到防治要求 ;米乐尔和毒丝本对 1龄幼虫的杀虫效果明显高于 3龄幼虫 ;春季做床时 ,用 3%米乐尔颗粒剂作毒土层效果优于 4 0 %毒丝本乳油 ,而毒土层法对东北大黑鳃金龟的防效又好于定植或出苗后在床面喷药的效果。
The experiment in lab showed that among the 5 kinds of insecticides,the toxic effect on Holotrichia diomphalia Bates of Chlorpyrifos and Miral was higher.The best time and dose of application of these two kinds of high effect and low toxicity insecticides have been determined.The test results in field indicated that the effectiveness of mixing insecticides with soil is better than that of spraying insecticides on the nursery soil in seedling stage.
出处
《林业科技》
北大核心
2002年第6期20-22,共3页
Forestry Science & Technology
