Innovative way to dispense pheromones for off-host control of Rhipicephalus sanguineus sensu lato ticks
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Date
2019
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Abstract
Vapour patches dispensing pheromones were evaluated as lures to increase the attractiveness of sticky tick traps
for Rhipicephalus sanguineus sensu lato (s.l.). Sex pheromone (SP), assembly pheromone (AP) and a combination
of SP+AP at optimal concentrations were impregnated in vapour patches. The responses of the different stages
of R. sanguineus s.l. (i.e. larvae, nymphs and adults) to the pheromones were evaluated using a Petri dish
bioassay. The impregnated vapour patches were retained as such for a period of two mo and their efficacy was
reassessed. In a subsequent field trial, pheromone impregnated vapour patches were placed as lures in bamboo
(Bambusa vulgaris) sticky traps designed for the control of ticks in dog kennels. In vitro AP impregnated vapour
patches were effective in attracting the different life stages of R. sanguineus s.l. whereas SP was effective in
attracting the unfed and fed male stages of R. sanguineus s.l. The field trial revealed that questing and engorged
larvae, nymphs and females of R. sanguineus s.l. were attracted more towards AP impregnated vapour patches
than SP and AP+SP impregnated vapour patches. Fed and unfed male ticks were lured effectively by SP alone.
The combination of SP+AP revealed no potent additive or synergistic effect.
Description
TNV_VP_2019_275-1-9
Keywords
Veterinary Science