Sublethal exposure of Trogoderma granarium everts (Coleoptera: Dermestidae) to insecticide-treated netting alters thigmotactic arrestment and olfactory-mediated anemotaxis

Long-lasting insecticide treated netting (LLIN) has a number of potential uses for the control insect pests. Using such netting, stored products may be protected from insects including khapra beetle (Trogoderma granarium Everts, Coleoptera: Dermestidae) widespread pest many agricultural commodities. Here we first examined whether brief exposures larvae to LLIN, less than 30 min, decreased chance eventual adult emergence compared exposed on untreated netting. Next, observed responses that were either not any or LLIN 10 min and then placed in wind tunnel monitored movement toward stimulus. The wind-tunnel assay was performed with without lure containing kairomones pheromones known attractive this species. There little effect larvae. However, there interacting effects relating thigmotaxis anemotaxis. Larvae showed increased likelihood walking upwind if semiochemical provided, as expected. A similar pattern when used, but became more likely remain stationary after acclimating net. When move baseline increase moving upwind. no longer related presentation. These observations suggest particular care should used relation airflow patterns landscape warehouse settings which is deployed.