昆虫病原线虫对红棕象甲Rhynchophorus ferrogineus(Oliv.)(Col.:Curculionidae)致病性的实验室和田间评价

M. S. T. Abbas, M. M. E. Saleh, A. M. Akil
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引用次数: 0

摘要

在实验室和野外对10种埃及和进口昆虫病原线虫对铁精线虫的致病性进行了评价。在实验室中,大多数线虫对害虫幼虫、蛹和成虫具有致病性。幼虫和成虫更容易感染线虫(大多数为100 % 死亡率)比茧中的蛹高。然而,在野外,昆虫幼虫死亡率最高,为66.67 % 大多数线虫未能控制害虫。这种失败可能是由于炎热的天气、害虫幼虫的挖掘行为以及棕榈树干中受感染部位的树液过多。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Laboratory and field evaluation of the pathogenicity of entomopathogenic nematodes to the red palm weevil, Rhynchophorus ferrugineus (Oliv.) (Col.: Curculionidae)

Ten Egyptian and imported entomopathogenic nematodes were evaluated for their pathogenicity to R. ferrugineus in both the laboratory and the field. In the laboratory, most nematodes were pathogenic to the pest larvae, pupae and adults. Larvae and adults were more susceptible to nematode infection (mostly 100 % mortality) than pupae enclosed in their cocoons. In the field however, the highest insect larval mortality was 66.67 % and most of nematodes failed in controlling the pest. Such failure could be due to hot weather, the tunnelling behaviour of the pest larvae and the too much sap in the infested sites in the trunks of palm trees.

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