Figure 2. Effect of low doses of clothianidin on oriented responses of A. ipsilon males towards a 20-ng sex pheromone blend.

The percentage of responses of clothianidin-treated males divided by that of DMSO-treated males is represented. The 0.25-ng dose induced a significant decrease in oriented responses whereas the 10-ng dose induced a significant increase in sex pheromone oriented responses. Bars with same letters are not significantly different (G-test, P<0.05). The dashed line represents an equal response of males treated with clothianidine and the corresponding DMSO dose. N>50 for all groups.