Effectiveness of a multi-species attractant in two different trap types under practical grain storage conditions
L.E. Collins, G.P. Bryning, M.E. Wakefield, J. Chambers, K. Fennah and P.D. Cox
Journal of Stored Products Research, Volume 44, Issue 3, 2008, Pages 247-257
2008
บทคัดย่อ
Commodities may be attacked by a multitude of pest species simultaneously and so to be cost-effective any lure must be attractive to a range of target species. The objective of this study was to test a multi-species lure formulation with different dispensers under conditions as close as possible to their use in practice. The attractant effect of the multi-species lure formulation was tested using two types of dispensers with populations of the three principal grain beetle pests in the
The first lure dispenser tested was attractive to O. surinamensis and C. ferrugineus but it attracted fewer S. granarius than the control traps. It was shown that most of the volatiles were released at the beginning of the trial and therefore lures were not effective over the whole six-week period. The second lure dispenser released the attractant volatiles more consistently over six weeks and exerted significant attraction to O. surinamensis and C. ferrugineus in PC™ Traps in the grain bulk and to O. surinamensis and S. granarius in floor traps. Too few C. ferrugineus were caught in floor traps to make a comparison. The reason for the repellent effect on S. granarius in the grain bulk was unclear and this is discussed along with the importance of measuring volatiles released by the lure.