Dilling Sarah C, TenBroeck Saundra H, Hogsette Jerome A, Kline Daniel L
Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA.
USDA-ARS, Center for Medical, Agricultural and Veterinary Entomology, 1600 SW 23rd Drive, Gainesville, FL 32608, USA.
Insects. 2023 Apr 11;14(4):374. doi: 10.3390/insects14040374.
Mosquitoes are pests of horses, but mosquito trap efficacy data, especially the ability of traps to protect horses, are lacking. Studies were conducted to investigate the comparative attraction between traps and horses, increase trap attraction by adding horse odors to the airstream of a trap, determine the spatial distribution of adult mosquitoes, estimate the numbers of mosquitoes feeding on horses, determine the relative attraction of horses to mosquitoes, and estimate the range of mosquitoes' attraction between two horses. When a horse and a mosquito trap were placed 3.5 m apart, there was a significant reduction in mosquitoes entering the trap. Adding horse odors to the airstream of a trap produced equivocal results because the horse providing the odors influenced the trap catches. Mosquitoes were not evenly distributed across the study site, which emphasized the importance of trap placement. Vacuuming mosquitoes from the horses in different seasons demonstrated that 324 and 359 mosquitoes per hour were feeding during the two studies. Separate analysis of data from the two horses vacuumed simultaneously revealed that one horse attracted twice as many mosquitoes as the other. This caused the results of a study to determine the attraction range of two horses moved from 3.5 to 20.4 m apart to be inconclusive.
蚊子是马的害虫，但缺乏蚊子诱捕器功效数据，尤其是诱捕器保护马匹的能力方面的数据。开展了多项研究，以调查诱捕器与马匹之间的相对吸引力，通过向诱捕器的气流中添加马的气味来增强诱捕器的吸引力，确定成年蚊子的空间分布，估计叮咬马匹的蚊子数量，确定马匹对蚊子的相对吸引力，以及估计两匹马之间蚊子的吸引范围。当一匹马和一个蚊子诱捕器相距3.5米放置时，进入诱捕器的蚊子数量显著减少。向诱捕器的气流中添加马的气味产生了不确定的结果，因为提供气味的马影响了诱捕器的捕获量。蚊子在研究地点分布不均，这突出了诱捕器放置的重要性。在不同季节对马身上的蚊子进行吸尘表明，在两项研究中，每小时分别有324只和359只蚊子在叮咬。对同时吸尘的两匹马的数据进行单独分析发现，一匹马吸引的蚊子数量是另一匹马的两倍。这使得一项确定相距3.5米至20.4米的两匹马的吸引范围的研究结果没有定论。
