Worldwide Culicoides biting midges transmit disease-causing agents that have significant economic impact on livestock industries. The aim of this study was to evaluate the sticky resting box traps to elucidate the resting behaviour of adult Culicoides in backyard cattle shed. Four different experiments were conducted over a six-month period based on types of resting box traps (material, colour, texture & height). During the study period 8870 individuals comprising 4046 (45.61%) males and 4824 (54.39%) females were collected. During the study period no significant preference was observed for the choice of resting box material (plywood & carton). For the colour experiment: adult Culicoides were retrieved from black box trap the most (21.15%) followed by blue (19.93%), red (17.84%), pink (14.06%), green (13.31%), yellow (7.21%) and the white (6.51%). Differential catch in the trap with surface texture (rough & smooth) was statistically significant (χ = 4.09, df = 1, P < 0.05). The highest proportion of males (n=987, 0.64) was recovered in the lower sticky resting box while the highest proportion of females (n=1318, 0.64) was collected in the upper sticky resting box during the study period. Sticky Resting Box (SRB) seems to be an effective tool for passive monitoring of resting adult vectors of Culicoides spp. prevalent in backyard sheds of West Bengal, India.

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http://dx.doi.org/10.1016/j.actatropica.2022.106576DOI Listing

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