Chapman J W, Knapp J J, Goulson D
Division of Biodiversity and Ecology, School of Biological Sciences, University of Southampton, UK.
Med Vet Entomol. 1999 May;13(2):132-8. doi: 10.1046/j.1365-2915.1999.00147.x.
Field trials investigating the effect of visual cues on catches of Musca domestica (Diptera: Muscidae) at toxic targets impregnated with the female sex pheromone (Z)-9-tricosene, were conducted in a caged-layer deep-pit poultry unit in southern England. Targets treated with azamethiphos and baited with 2.5 g of 40% (Z)-9-tricosene impregnated beads caught significantly greater numbers of M. domestica than control targets. The greater attractiveness of the pheromone impregnated targets persisted for at least 5 weeks. The addition of longitudinal black stripes, or a regularly spaced pattern of black spots, to the white targets had no effect on catch rates. However, a pattern of clustered black spots, designed to imitate groups of feeding M. domestica, significantly increased target catches; this effect was particularly pronounced in the targets impregnated with (Z)-9-tricosene. Trials comparing the attractiveness of white and fluorescent yellow pheromone-treated targets under two different lighting regimes indicated that M. domestica does not have a significant preference for either colour. The implications of these results in relation to the control of M. domestica populations in poultry units are discussed.
在英格兰南部一个笼养蛋鸡深坑式家禽养殖单元中，进行了田间试验，以研究视觉线索对在涂有雌性性信息素（Z）-9-二十三碳烯的有毒目标物上捕获家蝇（双翅目：蝇科）的影响。用谷硫磷处理并以2.5克含40%（Z）-9-二十三碳烯的浸渍珠作诱饵的目标物捕获的家蝇数量显著多于对照目标物。用性信息素浸渍的目标物具有更强的吸引力，这种情况持续了至少5周。在白色目标物上添加纵向黑色条纹或规则间隔的黑点图案对捕获率没有影响。然而，一种模仿正在取食的家蝇群体的聚集黑点图案显著增加了目标物的捕获量；这种效果在涂有（Z）-9-二十三碳烯的目标物上尤为明显。在两种不同光照条件下比较白色和荧光黄色经性信息素处理的目标物吸引力的试验表明，家蝇对这两种颜色均无明显偏好。讨论了这些结果对家禽养殖单元中家蝇种群控制的意义。
