| 昆虫病原线虫防治荔枝巢蛾 |
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| 引用本文： | 徐洁莲,杨平,谢汝创.昆虫病原线虫防治荔枝巢蛾[J].植物保护学报,2000,27(1):27-31. |
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| 作者姓名： | 徐洁莲 杨平 谢汝创 |
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| 作者单位： | 广东昆虫研究所，广东昆虫研究所，广东昆虫研究所 广州 510260，广州 510260，广州 510260 |
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| 摘 要： | 为害荔权树皮的新害虫荔枝巢蛾Ｃｍｏｒｉｔｉｓ ａｌｂｉｃａｐｉｌｌａ Ｍｏｒｉｕｔｉ在上发生１代，由于幼虫藏匿于自身吐丝粘粪粒组成的双层网下，使农药防治困难。作者以昆虫病原线虫为主，对比使用化学农药，寻求对该虫有效的防治方法。结果表明，荔枝巢蛾幼虫、蛹对昆虫病原线虫４个种的５个品系十分敏感，其感染率与病原线虫的剂量成正相关，Ｙ＝２．７３７＋１．２６４Ｘ，ＬＤ５０＝６．１６５ＩＪ／虫，但是大田防效很
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| 关 键 词： | 荔枝巢蛾 昆虫病原线虫 生物防治 树皮湿度 |
STUDIES ON THE APPLICATIONS OF SOME ENTOMOPATHOGENIC NEMATODES AGAINST LICHI YPONOMEUTID COMORITIS ALB1CAPILLA MORIUTI |
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| Xu Jielian,Yang Ping and Xie Ruchuang.STUDIES ON THE APPLICATIONS OF SOME ENTOMOPATHOGENIC NEMATODES AGAINST LICHI YPONOMEUTID COMORITIS ALB1CAPILLA MORIUTI[J].Acta Phytophylacica Sinica,2000,27(1):27-31. |
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| Authors: | Xu Jielian Yang Ping and Xie Ruchuang |
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| Institution: | Guangdong Institute of Entomology, Guangzhou 510260,Guangdong Institute of Entomology, Guangzhou 510260 and Guangdong Institute of Entomology, Guangzhou 510260 |
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| Abstract: | There is one generation a year of Comoritis albicapilla Moriuti, a new yponomeutid moths pest damages seriously on the bark of lichi tree, in Guangdong Province. The larvae conceal themselves under a double layer web made with their silks and excrements, and are very difficult to keep them under control. The authors attempted to use some entomopathogenic nematodes such as Steinernema carpocapsae A-griotes, S. glaseri KG, S. feltiae T319 and Heterorhabditis bacteriophora 8406 against this insect pest and to compare with the use of chemical insecticides. The indoor results showed that the larvae and pupae were very sensitive to all of these nematodes, and there was significantly positive correlation between the infesting rates (Y) and the dosages of nematode (X): Y = 2. 737 1. 264 X; LD50= 6. 165 IJ / individual of C. albicapilla. Whilst the control results were unstable in field tests, the infesting rates of a same dosage treatment ranged from 14. 2 %- 92. 1%. The reason has found that the bark humidity is a most important factor affecting on the survival and control efficacy of nematode, the most effective results of spraying of entomopathogenic nematode for controlling C. albicapilla occurred in rainy spring. |
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| Keywords: | Comoritis albicapilla entomopathogenic nematode bio-control |
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