| 张征田,彭宇,梁子安,杜瑞卿.2008.除草剂丁草胺对常见稻田蜘蛛毒性的测定及对其生长发育的影响.动物学杂志,43(5):110-113. |
| 除草剂丁草胺对常见稻田蜘蛛毒性的测定及对其生长发育的影响 |
| The Toxicity and Effects of Herbicide-butachlor on Growth and Development of Spiders in the Rice-field |
| 投稿时间：2008-01-10 修订日期：2008-06-18 |
| DOI： |
| 中文关键词: 丁草胺 浸渍法 毒力 生长发育 蜘蛛 |
| 英文关键词:Butachlor Dipping method Toxicity Growth and development Spiders |
| 基金项目:南阳师范学院高层次人才科研启动经费资助 |
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| 中文摘要: |
| 采用浸渍法测定了除草剂丁草胺对室内饲养的4种稻田蜘蛛拟水狼蛛(Piratasubpiraticus)、拟环纹豹蛛(Pardosa pseudoannulata)、锥腹肖蛸(Tetragnatha maxillosa)和食虫沟瘤蛛(Ummeliata insecticeps)的毒力,以及对拟水狼蛛生长发育的影响。结果表明,高剂量的丁草胺对稻田蜘蛛有较强的杀伤力,丁草胺对4种蜘蛛半致死浓度由高到低依次为:拟环纹豹蛛>拟水狼蛛>锥腹肖蛸>食虫沟瘤蛛,食虫沟瘤蛛对丁草胺最敏感,LC50为9.61605mg/L。用2mg/L丁草胺溶液作为水源喂养的拟水狼蛛体重、雌雄性比(3∶2)、幼蛛成活率(43.4%)均远小于对照组,其3~6龄总历期延长了10d,经统计检验与对照组差异显著(P<0.05),可见丁草胺对蜘蛛生长发育有显著影响。 |
| 英文摘要: |
| The toxicity of herbicide-butachlor to four species of spiders(Pirata subpiraticus,Pardosa pseudoannulata,Tetragnatha maxillosa,Ummeliata insecticeps)collected from the rice fields was tested by the dipping method and raising in the experimental room.Then the effect of butachlor at low concentration on the growth and development of P.subpiraticus was investigated in the laboratory.The results showed that high-concentration herbicide-butachlor was strongly toxic to the spiders and the LC50 order of butachlor to spiders was P.pseudoannulata>P.subpiraticus >T.maxillosa>U.insecticeps.And U.insecticeps was the most sensitive to the butachlor,LC50 reached 9.616 05 mg/L.Butachlor also had significant influence on the body weight,survival rate and life history of P.subpiraticus.Compared with the blank,the body weight and the rate of female to male of P.subpiraticus were significant.Generally,the butachlor prolonged the development for 10 d of P.subpiraticus,and decreased the survival rate to 43.4%. |
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