Title: | "Compounds modifying male responsiveness to main female sex pheromone component of the currant borer,Synanthedon tipuliformis clerk (Lepidoptera: Sesiidae) under field conditions" |
Author(s): | Szocs G; Miller LA; Thomas W; Vickers RA; Rothschild GH; Schwarz M; Toth M; |
Address: | "Research Institute for Plant Protection, Hungarian Academy of Sciences, H-1525, Budapest, Pf 102, Hungary" |
ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
Abstract: | "Various blends of (E,Z)-2,13-octadecadien-1-ol acetate (E,Z2,13-18: OAc), (Z)-13-octadecen-1-ol acetate (ZOAc) (two previously identified pheromone components of the currant borer,Synanthedon tipuliformis females), (E,Z)-, (Z,Z)-3,13-octadecadien-1-ol acetates (E,Z- andZ,Z3,13-18:OAc), andZ,Z-3,13-octadecadien-1-ol (Z,Z3,13-18:OH) were evaluated in field traps in three geographic regions. MaleS. tipuliformis were attracted toE,Z2,13-18:OAc in Tasmania, New Zealand, and Hungary. Captures were not influenced by the addition ofZ13-18: OAc, tested in Tasmania and Hungary. In Hungary and New Zealand, the addition ofE,Z3,13-18: OAc toE,Z2,13-18:OAc in a ratio of 100:3 was strongly synergistic; however, in Tasmania captures were reduced. The addition ofZ,Z3,13-18: OAc toE,Z2,13-18:OAc in a ratio of 10ratio1 resulted in strong inhibition of trap captures in Hungary. WhenZ,Z3,13-18: OAc was added in different ratios to a 100:3 binary mixture ofE,Z2,13-18:OAc/E,Z3,13-18:OAc in Hungary, it strongly reduced captures at, or above a ratio of 100ratio3ratio3 but no decrease was recorded at a ratio of 100ratio3ratio1. In New Zealand and Tasmania it reduced captures at a ratio of 100ratio3ratio1. Observations of behavioral responses of maleS. tipuliformis in Hungary to synthetic baits in the field showed thatE,Z2,13-18:OAcby itself evoked close-range approaches to the source from only 20% of males, whereas the addition ofE,Z3,13-18:OAc in a ratio of 100ratio3 raised that value to 65 %. Landing on the source was significant only at sources with a 100ratio3ratio0.1ratio3ratio10 blend ofE,Z2,13-18:OAc/E,Z3,13-18: OAc/Z,Z3,13-18: OAc/Z,Z3,13-18: OH/Z13-18: OAc. A 100ratio3 binary mixture ofE,Z2,13-18:OAc/E,Z3,13-18:OAc in a dose range of 10-1000 mug can be recommended for more effective field monitoring ofS. tipuliformis populations in Hungary and in New Zealand. In Tasmania, at present,E,Z2,13-18: OAc by itself is the most potent sex attractant of the species" |
Notes: | "PubMed-not-MEDLINESzocs, G Miller, L A Thomas, W Vickers, R A Rothschild, G H Schwarz, M Toth, M eng 1990/04/01 J Chem Ecol. 1990 Apr; 16(4):1289-305. doi: 10.1007/BF01021027" |