| Title: | Female Marking via Rubidium-Labeled Ejaculates in the West Indian Sweetpotato Weevil (Coleoptera: Curculionidae) |
| Author(s): | Kumano N; Tsurui-Sato K; Teruya K; Toyosato T; |
| Address: | "Laboratory of Insect Ecology, Department of Agro-environmental Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan. Special insect Team, Okinawa Prefectural Plant Protection Center, Naha, Japan. Special Insect Team, Ryukyu-Sankei Co. Ltd, Tomigusuku, Okinawa 901-0242, Japan. Laboratory of Entomology, Graduate School of Agriculture, University of the Ryukyus, Sembaru, Nishihara, Okinawa 903-0213, Japan" |
| ISSN/ISBN: | 1938-291X (Electronic) 0022-0493 (Linking) |
| Abstract: | "The West Indian sweetpotato weevil, Euscepes postfasciatus (Fairmaire), is one of the pests of the sweet potato, Ipomoea batatas, in tropical and subtropical countries. Although an eradication program using the sterile insect technique (SIT) for this weevil is now underway in Japan, the lack of potent attractants such as sex pheromones for this weevil species prevents effective monitoring and hampers pest control operations. New methods to monitor the performance of sterile males using trapped wild females are needed. In this study, we tested whether the ejaculate of the labeled males that were fed an artificial diet labeled with the trace element, rubidium (Rb), is detectable in the fertilized females. We fed an artificial diet treated with Rb (1.00, 0.50, 0.25, and 0.00%) to adult male weevils for 14 d after emerging and quantified the rubidium content in inseminated females. We also examined the side effects of the artificial diet on mating performance and longevity. The advantages of monitoring the spatial level of sterility using data from females labeled with ejaculate of Rb-fed males in an SIT eradication program are discussed" |
| Keywords: | Animals *Coleoptera Female *Ipomoea batatas Japan Male Rubidium *Weevils diet labeling diet marking insect ejaculation sterile insect technique; |
| Notes: | "MedlineKumano, Norikuni Tsurui-Sato, Kaori Teruya, Kiyohito Toyosato, Tetsuya eng Research Support, Non-U.S. Gov't England 2021/03/27 J Econ Entomol. 2021 Jun 11; 114(3):1411-1414. doi: 10.1093/jee/toab049" |
