ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chines Journal of Vector Biology and Control
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Wang Zhensheng
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王振生
Abstract: This test concerns the toxicity of Cypermethrin(NRDC-149) for the eggs, larvas, cocoons and imagoes of Monopsyllus anisus, The resultsare as follow: When the Glass Bottle Medicinal Membrane Method is used for the imagoes of M. anisus, and it is found that the LD50 (μg/cm2) of the fedflea or unfedflea have all shown (0.031>0.009 and 0.014>0.005): fedfleas of the same sex were higher than unfedfleas (: 0.031>0.014 and 0.009>0.005). The result is the same as the regular pattern. The Petri Dish Medicinal Membrane is used for the larvas, the LD50 (μg/cm2) of 3th-age-larvas (0.084)>flea (0.031); LC50 3th-age-laruas(19ppm)>eggs (5ppm); and when the Damp Absorption Method is used for the cocoons, the LC50 110ppm is higher than that of the eggs(5ppm), the 3th-age-larvas(19 ppm), and flea(8.7ppm).The resistance of the cocoons is the highest of the four. The feasibility of the Method of toxicity test of cocoons and the cause that LC50 is on the high side have been discussed, and some points for attention have been put forward.
摘要: 本文测定了氯氰菊酯对不等单蚤卵、幼虫、茧、成蚤的毒力。结果:成蚤用玻璃药膜法,LD50(μg/cm2)吸血蚤及未吸血蚤均是♀>♂(0.031>0.009及0.014>0.005);同一性别吸血蚤均大于未吸血蚤(♀:0.031>0.014及♀:0.009>0.005),与一般规律相符。幼虫用玻皿药膜法,LD50(μg/Cm2)Ⅲ龄幼虫(0.084)>♀蚤(0.031);LC50Ⅲ龄幼虫(19ppm)>卵(5ppm)。茧用吸湿法,LC50110ppm>卵(5ppm)、Ⅲ龄幼虫(19ppm)、♀蚤(8.7ppm),是抗力最强的一种虫态。同时探讨了茧毒力测定方法的可行性及LC50偏高的原因,提出了有关注意事项。
关键词: 毒力测定, 不等单蚤, 氯氰菊酯
Wang Zhensheng. The Toxicity Test on Different Growth Period of Monopsyllus anisus for Cypermethrin (NRDC-149)[J]. Chines Journal of Vector Biology and Control.
王振生. 氯氰菊酯对不等单蚤各发育期虫态的毒力测定[J]. 中国媒介生物学及控制杂志.
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