Field studies on efficacy of host odour baits for the biting midge Culicoides impunctatus in Scotland
Field studies on efficacy of host odour baits for the biting midge Culicoides impunctatus in Scotland
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DOI：
10.1046/j.1365-2915.2001.00285.x
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发表时间：
2001-06-01
影响因子：
1.9
通讯作者：
Mordue, W
中科院分区：
文献类型：
--
作者：
Bhasin, A;Mordue, AJ;Mordue, W
采用气味诱捕器和吸力诱捕器，对几种诱蚊剂对吸血库蠓（双翅目：蠓科）的诱蚊效果进行了评价。当释放量为0.06mg/h时，1-辛烯-3-醇是一种有效的嗅觉引诱剂。丙酮（23mg/h）和六种酚类化合物（苯酚、3-乙基酚、4-乙基酚、3-甲基酚、4-甲基酚和4-丙基酚）的混合物，在未确定的释放速率下，也显著增加了三角洲陷阱的渔获量。当联合测试时，有证据表明CO2 （0.2L/min）与丙酮、1-辛烯-3-醇或牛尿之间的协同作用，捕集量分别比单独使用CO2高4.7倍、6.2倍和9.3倍。由牛尿+丙酮+CO2或牛尿+1-辛烯-3-醇+CO2组成的三重诱饵组合获得的渔获量最高，与单独使用CO2相比，分别增加了x22和x24的渔获量。发现库蠓对CO2极其敏感，在两个野外季节测量的反应显示，在整个释放速率范围内（0.2-2.5L/min），捕获量呈显著的剂量依赖性增加。对这些释放速率的响应，从小型到大型哺乳动物的当量，强调了二氧化碳在寄主位置的重要作用。在此基础上，综述了嗅觉引诱剂在库蠓监测和防治中的应用。
The efficacy of some putative attractants for the biting midge Culicoides impunctatus (Goetghebuer) (Diptera: Ceratopogonidae) was assessed using odour-baited 'delta traps' and suction traps. 1-octen-3-ol was confirmed as a potent olfactory attractant for C. impunctatus when released at 0.06mg/h. Acetone (23mg/h) and a mix of six phenolic compounds (phenol, 3-ethylphenol, 4-ethylphenol, 3-methylphenol, 4-methylphenol and 4-propylphenol), at undetermined release rate, also significantly increased delta trap catches compared to unbaited controls. When tested in combination, there was evidence of synergism between CO2 (0.2L/min) and acetone, 1-octen-3-ol or cow urine, trap catches being, respectively, 4.7, 6.2 and 9.3-fold greater than for CO2 alone. Highest catches were obtained with triple bait combinations comprising cow urine + acetone + CO2 or cow urine +1-octen-3-ol+CO2, which increased trap catches by x 22 and x 24, respectively, compared to CO2 alone. Culicoides impunctatus was found to be extremely sensitive to CO2 and responses, gauged over two field seasons, showed a significant dose-dependent increase in catch across the entire range of release rates (0.2-2.5L/min). Responses to these release rates, ranging from small to large mammal equivalents, emphasized the important role of CO2 in host location by C. impunctatus. Uses of olfactory attractants for monitoring and control of Culicoides are reviewed on the basis of these results.