Liu Wen-Yung, Lee Shae-Jinn, Yang En-Cheng
Department of Entomology, National Chung Hsing University, No. 250, Kuo Kuang Road, Taichung 40227, Taiwan.
J Am Mosq Control Assoc. 2009 Dec;25(4):448-55. doi: 10.2987/09-0005.1.
Four chemicals (1-octen-3-ol [octenol], lactic acid, acetone, and carbon dioxide) were evaluated for their attractiveness to the biting midge, Forcipomyia taiwana. The attractiveness was based on the number of adult biting midges attracted to each chemical. Results showed that the attractiveness of each chemical changed with different release rates. The optimal attractive release rates for octenol, lactic acid, and acetone fell in the range 0.5-0.9 mg/h, 0.2-1.4 mg/h, and 3.4-10.9 mg/h, respectively. The most attractive release rates were 0.7 mg/h, 0.2 mg/h, and 4.8 mg/h, respectively. Octenol, lactic acid, and acetone were evaluated simultaneously but in separate traps, at the best attractive release rate mentioned above to compare their attractiveness efficacies. Octenol was the most attractive to F. taiwana, followed by lactic acid and acetone; however, there was no significant difference between the mean numbers of adults attracted by the 3 attractants. Carbon dioxide (CO2) with release rates of 100, 250, and 500 ml/min showed no differences in attractiveness. When combinations of CO2, octenol, and blue light (BL, lamda max = 405 nm) were evaluated, the number of adults attracted by the treatment of CO2 + BL was the lowest, and that of the CO2 + octenol + BL was the highest.
对四种化学物质（1-辛烯-3-醇[辛醇]、乳酸、丙酮和二氧化碳）对台湾蠛蠓的吸引力进行了评估。吸引力是基于被每种化学物质吸引的成年台湾蠛蠓的数量。结果表明，每种化学物质的吸引力随释放速率的不同而变化。辛醇、乳酸和丙酮的最佳吸引释放速率分别落在0.5-0.9毫克/小时、0.2-1.4毫克/小时和3.4-10.9毫克/小时的范围内。最具吸引力的释放速率分别为0.7毫克/小时、0.2毫克/小时和4.8毫克/小时。辛醇、乳酸和丙酮在上述最佳吸引释放速率下同时但在单独的诱捕器中进行评估，以比较它们的吸引效果。辛醇对台湾蠛蠓最具吸引力，其次是乳酸和丙酮；然而，这三种引诱剂吸引的成虫平均数量之间没有显著差异。释放速率为100、250和500毫升/分钟的二氧化碳在吸引力方面没有差异。当评估二氧化碳、辛醇和蓝光（BL，最大波长=405纳米）的组合时，二氧化碳+蓝光处理吸引的成虫数量最低，而二氧化碳+辛醇+蓝光处理吸引的成虫数量最高。
