Fig. 2From: Susceptibility of wild-caught Lutzomyia longipalpis (Diptera: Psychodidae) sand flies to insecticide after an extended period of exposure in western São Paulo, BrazilKnockdown times over 60 min in response to exposure to deltamethrin (a) and lambda-cyhalothrin (b) of Lu. longipalpis from the three different treatments. Abbreviations: PI, pheromone-insecticide arm; DC, dog-collar arm; C, control arm; LC, laboratory colonyBack to article page