| Title: | "Oviposition deterrents for the Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae) from fly faeces extracts" |
| Author(s): | Arredondo J; Diaz-Fleischer F; |
| Address: | "Campana Nacional Contra Moscas de la Fruta, Desarrollo de Metodos, Central Poniente No. 14 Altos, Tapachula, Chiapas, CP 30700, Mexico" |
| ISSN/ISBN: | 0007-4853 (Print) 0007-4853 (Linking) |
| Abstract: | "After oviposition, females of the Mediterranean fruit fly Ceratitis capitata Wiedemann deposit a host-marking pheromone on the fruit surface that deters oviposition by conspecifics. Methanolic extracts of fruit fly faeces elicit a similar deterrent effect. The results of laboratory and field experiments using raw methanolic extracts of C. capitata faeces as an oviposition deterrent are reported. Laboratory bioassays revealed a significant positive relationship between concentration of faeces and the inhibition of oviposition responses by C. capitata. Treatment of halves of coffee bushes with methanolic extracts containing 0.1, 1.0 and 10 mg faeces ml(-1) resulted in a significant reduction of infestation only at the highest concentration (P=0.03). Treatment of blocks of coffee bushes with an extract of 10 mg faeces ml(-1) resulted in an 84% reduction in infestation by C. capitata in sprayed plants and a 56% reduction in adjacent untreated coffee bushes surrounding treated plots, probably due to the deterrent effect of host-marking pheromone on fly oviposition. We conclude that faeces contain oviposition deterrent substances that effectively reduce fruit infestations by C. capitata, suggesting a clear potential for the use of this infochemical in integrated management programmes targeted at this pest" |
| Keywords: | Animals Ceratitis capitata/drug effects/*physiology Coffea Feces/chemistry Female Insect Control/methods Methanol Oviposition/*drug effects/*physiology Ovum Pheromones/*chemistry/pharmacology; |
| Notes: | "MedlineArredondo, J Diaz-Fleischer, F eng Comparative Study Research Support, Non-U.S. Gov't England 2006/01/31 Bull Entomol Res. 2006 Feb; 96(1):35-42. doi: 10.1079/ber2005399" |
