Effect entomopathogenic fungi in control Culex pipiens

M. Waheeb
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Abstract

 Culex pipiens mosquitos are thought to be vectors for many arboviruses, including West Nile virus and encephalitis virus, which have a global impact on human health. The natural management of this pest's aquatic stages is critical for sustaining an insecticide-free environment. The current study focused on the biological and biochemical effects of the entomopathogenic fungi Beauveria bassiana and Trichoderma harizanium on Culex pipiens laboratory colony 3rd instar larvae.             The results showed that B. bassiana had the highest larval mortality (22%) with the concentration 1x106 spore/ml and the period exposure recorded (36.6% )shortest lethal time (120 hrs), followed by T. harizanium (17.3%) with concentration 1x107 spore/ml and the period exposure recorded (29.1%) shortest lethal time (120 hrs), and had the lowest percent mortality (16%) with the concentration 1x103 spore/ml and period exposure with (6%) longest (24 hrs) for B. bassiana and had the lowest percent mortality (4%) with the concentration 1x103 spore/ml for T. harizanium and period exposure with 24 hrs  (12.5%).     
昆虫病原真菌防治库蚊的效果
人们认为,库蚊是许多虫媒病毒的载体,包括西尼罗河病毒和脑炎病毒,这些病毒对人类健康具有全球性影响。对这种害虫水生阶段的自然管理对于维持无杀虫剂的环境至关重要。本研究主要研究了球孢白僵菌和黑僵木霉两种昆虫病原真菌对库蚊实验室3龄幼虫的生物学和生化影响。结果表明,球孢白僵菌浓度为1 × 106孢子/ml时,幼虫死亡率最高(22%),致死时间最短(120小时),为36.6%;黑僵菌浓度为1 × 107孢子/ml时,致死时间最短(120小时),为29.1%;孢子浓度为1 × 103 /ml时,球孢白僵菌的死亡率最低,为16%,暴露时间最长(24 h),死亡率最低(6%);孢子浓度为1 × 103 /ml时,黑僵菌的死亡率最低(4%),暴露时间最长(12.5%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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