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J Vector Ecol

Title:		Influence of light and kairomone baiting systems on trap collections of biting midges in southern Sweden
Author(s):		Bray D; Isberg E; Hillbur Y; Ignell R;
Address:		"Swedish University of Agricultural Sciences, Department of Plant Protection Biology, Unit of Chemical Ecology, Box 102, 230 53, Alnarp, Sweden. Agriculture, Health and Environment Department, Natural Resources Institute, University of Greenwich, Kent, ME4 4TB, UK"
Journal Title:		J Vector Ecol
Year:		2020
Volume:		45
Issue:		1
Page Number:		45 - 56
DOI:		10.1111/jvec.12372
ISSN/ISBN:		1948-7134 (Electronic) 1081-1710 (Linking)
Abstract:		"Effective surveillance is essential for protecting livestock from Culicoides biting midges and the viruses they transmit. The objective of this study was to determine how the baiting system used in traps (UV, incandescent light, incandescent light with CO(2) , and incandescent light with CO(2) and 1-octen-3-ol) influences estimates of midge population abundance, parity, and diel activity. This was achieved through a standardized trapping protocol conducted in three habitats in Sweden. UV light traps caught the most Culicoides species and more C. obsoletus complex females than incandescent light traps. Traps baited with CO(2) plus 1-octen-3-ol caught more female C. impunctatus than incandescent light traps. No consistent effect of bait type was found on C. obsoletus parity rate, as estimated from the proportion of midges with presence or absence of pigmentation. Midge activity, as reflected by trap catches, peaked between -3 h and +3 h relative to sunset, with UV traps catching significantly more female C. obsoletus complex and C. impunctatus at and after sunset than before sunset. We conclude that baiting system can influence biting midge collections, even using identical traps. Effective surveillance may require more than one bait type and kairomones to attract species that do not feed exclusively on cattle"
Keywords:		Animals Carbon Dioxide/pharmacology Ceratopogonidae/*drug effects/*radiation effects Female Insect Control *Light Octanols/pharmacology Pheromones Sweden *Ultraviolet Rays 1-octen-3-ol Culicoides UV-light carbon dioxide diel activity kairomones vector sur;
Notes:		"MedlineBray, Daniel Isberg, Elin Hillbur, Ylva Ignell, Rickard eng Research Support, Non-U.S. Gov't 2020/06/04 J Vector Ecol. 2020 Jun; 45(1):45-56. doi: 10.1111/jvec.12372"