The effects of silver agcl2 ions at different doses on larval development of Ephestia kuehniella zell (lepidoptera: pyralidae)

Abstract

The present study examined the effects of AgCl2 concentrations at different doses on larval development of E. kuehniella. AgCl2 solutions at concentrations of 0.4, 0.8, 1, 1.2 and 2 µM were applied against the 3rd and 5th larvae of E. kuehniella. As the dose increased, the mortality rate of E. kuehniella larvae also increased. Concentrations of 0.4μM had no effect on 3rd and larval stages of E. kuehniella. AgCl2 concentrations had much more effect on 3rd larval stages of E. kuehniella than on the larval stages, and the mortality rate was highest at concentrations of 2 μM. The sensitivities of the larval stages to the concentrations indicate that 3rd period of larvae were more affected by the concentrations than 5th period of larvae. When compared with the control group, it was statistically determined that those exposed to the doses of all 3 rd stage larvae and 5th stage larvae of 1 and 2 μM doses were adversely affected by heavy metals.