TOXICITY AND GROWTH-REGULATING ACTIVITY OF A NEEM SEED KERNEL EXTRACT CAZAL-S) TO THE LARVAE OF CULEX QUINQUEFASCIATUS

Ping Jin; Xiaojun Pan; Shanhuan Zhao

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TOXICITY AND GROWTH-REGULATING ACTIVITY OF A NEEM SEED KERNEL EXTRACT CAZAL-S) TO THE LARVAE OF CULEX QUINQUEFASCIATUS

机译：TOXICITY AND GROWTH-REGULATING ACTIVITY OF A NEEM SEED KERNEL EXTRACT CAZAL-S) TO THE LARVAE OF CULEX QUINQUEFASCIATUS

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Toxicity of a neem seed kernel extract (AZAL-S) was assessed under laboratory conditions against larvae of Culex quinquefasciatus. The LC_(50) value for AZAL-S was 0. 78 X 10~(-6). Exposure of 4th instar larvae to 0.3 X 10~(-6) and 0.5 X 10~(-6) AZAL-S for 120 hours caused 46.2 and 67.5 mortality respectively , with various types of morphogenetlc aberration. AZAL-S induced an obvious prologation of the larval period when 1st instar larvae were treated with 0.4-1.0 X 10~(-6) AZAL-S for 7 days. The insect growth regulating effect of AZAL-S on mosquito larvae was similar to those reported for certain insect growth regulators.

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来源
《Entomologia Sinica》 |1995年第1期|64-69|共6页
作者
Ping Jin; Xiaojun Pan; Shanhuan Zhao;
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作者单位

Department of Parasitology, Guangzhou Medical College, Guangzhou, Guangdong 510182, China;

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原文格式 PDF
正文语种英语
中图分类昆虫学;
关键词
Azadirachta indica; neem seed kernel extract; Culex quinquefasciatus; toxicity; growth-;

TOXICITY AND GROWTH-REGULATING ACTIVITY OF A NEEM SEED KERNEL EXTRACT CAZAL-S) TO THE LARVAE OF CULEX QUINQUEFASCIATUS

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