摘要
Studies were conducted to determine the potential of a synthetic sex pheromone that attracts only males for monitoring sweetpotato weevil, Cylas formicarius elegantulus (Summers), populations in southern Florida, the US Virgin Islands, and Puerto Rico. Trap counts consistently increased with an increase in pheromone dosage. Slope values from the regressions of log10weevil counts on log10 dosage and arcsine‐transformed percentages of weevils caught per dosage on log10 dosage did not differ among most trials despite large differences in weevil densities and time of year. In St Croix, US Virgin Islands, septa aged outdoors were as attractive as fresh septa (refrigerated septa) for up to 7 weeks (49 days). In southern Florida, trap counts decreased with an increase in septum age. From a practical perspective, however, aged septa were almost as attractive as fresh septa for at least 30 days. Results from these studies indicate that a dosage of 10 μg of pheromone formulated on methylene chloride‐extracted rubber septa is adequate for monitoring weevils in southern Florida and the Caribbean. Also, when pheromone is formulated on methylene‐chloride extracted rubber septa, septa can be used continuously for at least 30 days. perhaps longer, without a substantial decrease in attractiveness.
摘要译文
进行了研究，以确定合成的性信息素吸引男性只用于监视甘薯象鼻虫，甘薯蚁象甲（夏天），人口在佛罗里达州南部，美属维尔京群岛和波多黎各的潜力。陷阱计数持续增加与增加的信息素的剂量。从log10weevil计数上日志10剂量和象鼻虫每剂量挂在日志10剂量的反正弦转化百分比回归斜率值没有大多数试验中，尽管在象鼻虫密度和一年中的时间差异大不同。在圣若热，美属维尔京群岛，隔年龄均在户外新鲜隔（冷藏隔片）长达7周（49天）的吸引力。在佛罗里达州南部，陷阱计数的增加隔年龄下降。从实用的角度来看，年龄隔膜几乎鲜隔为至少30天的吸引力。这些研究结果表明，10微克信息素制定了二氯甲烷提取橡胶隔膜的量是足够的在佛罗里达州南部和加勒比海地区监测象鼻虫。此外，当信息素被配制于亚甲基氯甲烷萃取橡胶隔，隔片可以连续使用至少30天。或许更长的时间，而不在吸引力的显着降低。
R. K. Jansson[a]; F. I. Proshold[a][b][c]†‡; L. J. Mason[a]; R. R. Heath[a][d]§ ; S. H. Lecrone[a]. Monitoring sweetpotato weevil (Coleoptera: Curculionidae) with sex pheromone: Effects of dosage and age of septa[J]. International Journal of Pest Management, 1990,36(3): 263-269