Behavioral responses of mosquitoes to fruit-based attractive sugar baits in confined semi-field system: a pilot study for mosquito control
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عنوان دوره: سومین کنگره بین المللی حشره شناسی ایران
نویسندگان
1. Department Public Health, School of Public Health, Jiroft University of Medical Sciences, Jiroft, Iran
2Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
چکیده
Emergence of insecticide resistant mosquitoes emphasized on new tools for their control. An innovative method in adult mosquito control is Attractive Toxic Sugar Bait (ATSB). In order to evaluate behavioral responses of mosquitoes to different fruit-based attractive sugar baits (ASB) and various ASB station (resting sites) a study was conducted in a confined semi-field condition in Kazerun, south of Iran. A mosquito house (270×430×250 cm) with artificial breeding places was developed under a mulberry tree to prevent the direct sunlight. Four types of ASB stations including crock pottery, earthenware pot, pit shelter, and wet black box were settled inside the mosquito house. The ASB consisted of either brown glucose, or juices of dates, peach, mango, cucumber, and plum. Culicidae larvae (Anopheles spp. and Culex spp.) were collected from field and transferred to the artificial breeding places in the mosquito house. They were reared and developed to adult stage. Then the mosquito behaviors, attractiveness to different fruit juices and resting sites were evaluated. Data were subjected to analysis of variance with Tukey’s Test. The adult mosquitoes were flying freely throughout the house and their activities would start at the beginning of sunset and followed at dark period. All the artificial resting sites were attractive due to suitable and lower changes of ambient conditions but the pit shelter was found the most attractive site (P ≤ 0.05). Sugar feeding activity started with beginning of sunset and reached to a peak in early evening (20-21 pm) significantly (P ≤ 0.05). We found that fresh dates and peach juices were highly attractive for the mosquitoes (P ≤ 0.05). In conclusion, the shelter pit with dates or peach juices as an ASB was promising to disseminate toxic compounds including insecticides to mosquitoes. The ASB also can be applied to distribute transgenic bacteria to mosquitoes for paratransgeneisis approach. However, further efforts are needed to improve the ASB with toxicants or transgenic bacteria for mosquito control.
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