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Bull Entomol Res

Title:		Recaptures of feral Bactrocera dorsalis and B. umbrosa (Diptera: Tephritidae) males after feeding on methyl eugenol
Author(s):		Tan KH;
Address:		"Mobula Research Sdn. Bhd., 20, Jalan Tan Jit Seng, 11200 Tanjong Bungah, Penang, Malaysia. Academy of Sciences Malaysia, MATRADE Tower, Jalan Sultan Haji Ahmad Shah, 50480 Kuala Lumpur, Malaysia"
Journal Title:		Bull Entomol Res
Year:		2020
Volume:		20190613
Issue:		1
Page Number:		15 - 21
DOI:		10.1017/S0007485319000208
ISSN/ISBN:		1475-2670 (Electronic) 0007-4853 (Linking)
Abstract:		"Two major fruit fly pest species, Bactrocera dorsalis and B. umbrosa, are strongly attracted to methyl eugenol (ME) found in >450 plant species. They are, however, exclusive pollinators of certain daciniphilous (attracting Dacini fruit flies) Bulbophyllum orchids. A comparison between the recaptures of feral males after feeding ad libitum on 0.6 mg ME (simulating an average floral quantity of an orchid flower - Trial 1) and 480 mg in Trial 2 was investigated using the non-invasive capture-mark-release-recapture (CMRR) technique. Based on daily CMRR over a 16-day period, using a different colour enamel paint each day, percentages of B. dorsalis males recaptured in Trial 1 were significantly higher than those in Trial 2. However, for B. umbrosa, percentages of recaptures for different day-specific colours were highly variable due to low fly numbers captured/day. In Trial 1, of 756 B. dorsalis males released, 36.4% were recaptured once, 7.7 twice, 2.4 three times and 0.4 four times. While in Trial 2 of 1157 released males, 6% were recaptured once and 0.3% twice. Of 67 B. umbrosa males released, 28.4% were recaptured once and none more than once in Trial 1. Nevertheless, of 119 flies released in Trial 2, 25.2% were recaptured once and 3.3% twice. Overall, many marked males did return to a single ME-source to 'refuel' ME (a sex pheromone precursor). The results also show that a relatively high number of flies paid multi-visitations to a single 0.6 mg ME-source and indicate that the presence of natural ME-sources may impact area-wide IPM programmes"
Keywords:		Animals *Appetitive Behavior Eugenol/*analogs & derivatives Male Orchidaceae *Tephritidae Dacini fruit flies capture-mark-release-recapture feral males methyl eugenol recaptures;
Notes:		"MedlineTan, K-H eng England 2019/06/14 Bull Entomol Res. 2020 Feb; 110(1):15-21. doi: 10.1017/S0007485319000208. Epub 2019 Jun 13"