5 resultados para Insecticidal activity
em Chinese Academy of Sciences Institutional Repositories Grid Portal
Insecticidal activity of proteinous venom from tentacle of jellyfish Rhopilema esculentum Kishinouye
Resumo:
Insecticidal activity of proteinous venom from tentacle of jellyfish Rhopilema esculentum Kishinouye was determined against three pest species, Stephanitis pyri Fabriciusa, Aphis medicaginis Koch, and Myzus persicae Sulzer. R. esculentum full proteinous venom had different insecticidal activity against S. pyri Fabriciusa, A. niedicaginis Koch, and M. persicae Sulzer. The 48 It LC50 values were 123.1, 581.6, and 716.3 mu g/mL, respectively. Of the three pests, R. esculentuin full proteinous venom had the most potent toxicity against S. pyri Fabriciusa, and the corrected mortality recorded at 48 It was 97.86%. So, S. pyri Fabriciusa could be a potential target pest of R. esculentum full proteinous venom. (c) 2005 Elsevier Ltd. All rights reserved.
Resumo:
黄花蒿精油对米象、玉米象、绿豆象和蚕豆象等 4种仓库害虫具有很强的熏杀活性 ,其甲醇和乙醇提取物对小菜蛾、菜青虫、大菜粉蝶、银纹夜蛾和斜纹夜蛾幼虫也具有一定的杀虫活性。
Resumo:
:用紫撬泽兰精油的20℃~150。C,150℃一200℃,20.0℃,230℃.230屯。300℃和300℃以上馏协,分剐以 稚.簦嘴,L的熏蒸浓爰楚理米象、玉采象、簿豆象牵蚕熹象,螬幕表磷凄5争犍静中,娃15。℃~200℃馏傍转荣虫活性 最高,其洗是20℃一150℃和200℃~230气馏份,而300℃以上馏份的杀虫活性靛低。进一步的生测结装表明.150屯一 200℃增傍对米象、玉来氧、绿黛象和善豆象24h的l(葡分莉为15 5li4,17.8124,培.0302和16.2671mg/Lo
Resumo:
The mass spectral behaviour of 15 new type of organic phosphorus compounds with a considerable insecticidal activity, 1, 3,2-oxazaphospholidine 2-sulfides derivatives, under 70 eV electron impact has been studied by means of high and low resolution mass spectrometry as well as by B/E linked scan and MIKES/CID analysis. Discussion is focused into the isomerization between oxygen and sulphur in molecules and some rearrangement reactions.