Bio-efficacy evaluation of nanoformulations of β-cyfluthrin against Callosobruchus maculatus (Coleoptera: Bruchidae)

Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
Kumelachew M LohaChitra Srivastava

Abstract

In the present investigation, bioefficacy of developed β-cyfluthrin formulations, utilizing laboratory synthesized poly(ethylene glycols) based amphiphilic copolymers, were evaluated against Callosobruchus maculatus (Coleoptera: Bruchidae). The bioefficacy data indicated that the formulations developed by utilizing polymers having PEG - 1500 (3c) and PEG - 2000 (3d) as the hydrophilic segment showed greater efficacy after 14 days as evident from EC(50) values (2.2 and 1.58 mg L(-1) respectively). Also, release from the commercial SC formulation was faster than developed formulations as the commercial formulation had the lowest EC(50) value on the first day (0.51 mg L(-1)). The mean EC(50) of the commercial formulation against C. maculatus was quite high as compared to those of developed formulations. The results suggest that depending upon the polymer matrix used, the application rate of β-cyfluthrin can be optimized to achieve insect control at the desired level and period. The results described in this paper are promising and provide a comparison of developed formulations with the commercial one showing an earlier degradation of β-cyfluthrin in the latter and relatively prolonged activity in the former.

References

Nov 30, 2004·Chemical Communications : Chem Comm·Sunil K SharmaJayant Kumar
Mar 29, 2011·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Kumelachew M LohaSuresh Jain

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Citations

Jan 6, 2016·Journal of Agricultural and Food Chemistry·Md NuruzzamanRavi Naidu
Oct 8, 2016·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Sujan MajumderParul Garg
Sep 4, 2015·The Science of the Total Environment·Jino SonStacey L Harper
Jan 4, 2017·Water Research·Adamo Riccardo PetosaNathalie Tufenkji
May 4, 2013·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Parshant KaushikShiv Kumar Yadav
May 8, 2018·Nature Nanotechnology·Melanie KahThomas Daniel Bucheli

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