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Optimizing methyl-eugenol aromatherapy to maximize posttreatment effects to enhance mating competitiveness of male Bactrocera carambolae （Diptera： Tephritidae）

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Insect Science 2015年第5期22卷 661-669页

作者： Ihsan ul Haq Marc J.B. Vreysen Carlos Caceres Todd E. Shelly jorge hendrichs Insect Pest Control Laboratory Joint FAOIIAEA Division of Nuclear Techniques in Food and Agriculture Seibersdorf Austria National Agricultural Research Centre Park Road Islamabad Pakistan USDAIAPHIS 41-650 Ahiki Street Waimanalo HI 96795 USA and Insect Pest Control Section Joint FAOIIAEA Division of Nuclear Techniques in Food and Agriculture Vienna Austria

Methyl-eugenol （ME）（1,2-dimethoxy-4-（2-propenyl）benzene）, a natural phy- tochemical, did enhance male Bactrocera carambolae Drew ＆ Hancock （Diptera： Tephri- tidae） mating competitiveness 3 d after ingestion. Enhanced male mating competitiveness can significantly increase the effectiveness of the sterile insect technique （SIT）. ME appli- cation to mass reared sterile flies by feeding is infeasible. ME application by aromatherapy however, would be a very practical way of ME application in fly emergence and release facilities. This approach was shown to enhance mating competitiveness ofB. carambolae 3 d posttreatment （DPT）. Despite this added benefit, every additional day of delaying re- lease will reduce sterile fly quality and will add cost to SIT application. The present study was planned to assess the effects of ME-aromatherapy on male B. carambolae mating competitiveness 1DPT and 2DPT. ME aromatherapy 1DPT or 2DPT did enhance mating competitiveness of B. carambolae males whereas ME feeding 1DPT and 2DPT did not. Male mating competitiveness was enhanced by the ME aromatherapy irrespective if they received 1DPT, 2DPT or 3DPT. ME aromatherapy, being a viable approach for its applica- tion, did enhance mating competitiveness of male B. carambolae 1 d posttreatrnent as ME feeding did 3 d after ingestion.

关键词： Bactrocera carambolae mating competitiveness ME aromatherapy methyl-eugenol ME feeding posttreatment effect SIT

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Methoprene application and diet protein supplementation to male melon fly, Bactrocera cucurbitae, modifies female remating behavior

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Insect Science 2014年第5期21卷 637-646页

作者： Ihsan ul Haq Marc J. B. Vreysen P. E. A. Teal jorge hendrichs Insect Pest Control Laboratory Joint FAO/IAEA Agriculture and Biotechnology Laboratories A-2444 Seibersdorf Austria NationalAgricultural Research Centre Park Road Islamabad 45500 Pakistan Center for Medical Agricultural and Veterinary EntomologyUSDA ARS Gainesville Florida 32604 USA Insect Pest Control Section Joint FAO/IAEA Division IAEA A-1400 Vienna Austria

Methoprene （an analogue of juvenile hormone） application and feeding on a protein diet is known to enhance male melon fly, Bactrocera cucurbitae Coquillett （Diptera： Tephritidae）, mating success. In this study, we investigated the effect of these treatments on male B. cucurbitae＇s ability to inhibit female remating. While 14-d-old females were fed on protein diet, 6-d-old males were exposed to one of the following treatments：（i） topical application of methoprene and fed on a protein diet; （ii） no methoprene but fed on a protein diet; （iii） methoprene and sugar-fed only; and （iv） sugar-fed, 14-d-old males acted as controls. Treatments had no effect on a male＇s ability to depress the female remating receptivity in comparison to the control. Females mated with protein-deprived males showed higher remating receptivity than females first mated with protein-fed males. Methoprene and protein diet interaction had a positive effect on male mating success during the first and second mating of females. Significantly more females first mated with sugar-fed males remated with protein-fed males and females first mated with methoprene treated and protein-fed males were more likely to remate with similarly treated males. Females mating latency （time to start mating） was significantly shorter with protein-fed males, and mating duration was significantly longer with protein-fed males compared with protein-deprived males. These results are discussed in the context of methoprene and/or dietary protein as prerelease treatment of sterile males in area-wide control of melon fly integrating the sterile insect technique （SIT）.

关键词： Bactrocera cucurbitae methoprene protein rich diet remating behavior SIT Tephritidae

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