Sublethal effects of some synthetic and botanical insecticides on Bemisia tabaci (Hemiptera: Aleyrodidae)

• Main Authors: Esmaeily Saeideh, Samih Mohammad Amin, Zarabi Mehdi, Jafarbeigi Fatemeh
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2014-07-01
• Series: Journal of Plant Protection Research
• Subjects: Bemisia tabaci; cotton whitefly; pesticide; plant extract; two-sex life table
• Online Access: http://www.degruyter.com/view/j/jppr.2014.54.issue-2/jppr-2014-0027/jppr-2014-0027.xml?format=INT

In addition to direct mortality caused by insecticides, some biological traits of insects may also be affected by sublethal insecticide doses. In this study, we used the age-stage, two-sex life table method to evaluate the sublethal effects of the four synthetic insecticides: abamectin, imidacloprid, diazinon, and pymetrozin as well as the botanical insecticide taken from Calotropis procera (Asclepiadaceae) extract, on eggs of the cotton whitefly, Bemisia tabaci (Hem.: Aleyrodidae). The lowest and highest survival rates and oviposition periods were observed in whiteflies treated by diazinon and imidacloprid, respectively. We found significant differences in the net reproductive rate (R0), the intrinsic rate of increase (r), the finite rate of increase (?), and the gross reproductive rate (GRR) among different insecticides. Altogether, our results showed that pymetrozin and C. procera induced the most sublethal effects, thus they may be suitable candidates for use in integrated pest management programs of B. tabaci.