Abstract
Abstract Co-toxicity of fenpropathrin with deltamethrin 10 EC, esfenvalerate 5.5 EC, λ-cyhalothrin 2.5 EC and β-cyfluthrin was evaluated in field-collected and laboratory-reared populations of Lapaphis erysimi Kalt. Field population was found to be resistant to all these types of pyrethroids and RR (resistance ratio) was 31, 33, 33, 16 and 16 to fenpropathrin, deltamethrin, esfenvalerate, cyhalotiirn and β-cyfluthrin, respectively. Mixture of fenpropathrin with deltamethrin, esfenvalrate, λ-cyhalothirn and β-cyfluthrin in 1:1 ratio. Combination index and synergistic ratio have exhibited synergism of pyrethroid mixture. The results are discussed in relation to mechanism of synergism and practical implication of such mixture for mitigation of resistance in aphids. Keywords: Synergism, pyrethroids, type I, type II, aphids, insecticide, resistance Cite this Article Ahmed S., Asif MU., Nisar MS., Arshad M. et al. Co-Toxicity of Pyrethroid Mixtures against Field and Laboratory Reared Populations of Lipaphis erysimi Kalt. (Aphididae: Homoptera). Research & Reviews: Journal of Crop Science and Technology (RRJoCST). 2015; 4(1): 28–33p.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
