Journal of Biological Control

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Toxicity of Eco-Friendly Chemicals to Coccinellid Predators on Okra


Affiliations
1 Department of Entomology, Agricultural College, Acharya N. G. Ranga Agricultural University, Bapatla 522 101, Andhra Pradesh, India
 

Field experiments were carried out to study the relative toxicity of different groups of chemicals viz., dichlorvos, Nimbecidine, B.t. (Delfin), novaluron (lGR), spinosad and imidacloprid (neonicotinoid) and combination of dichlorvos, spinosad and imidacloprid with novaluron and B.t. against predatory coccinellid beetles Cheilomelles Sexmaculata (Fahricius) and Micraspis ullivittata (Hope). The results indicated that dichlorvos and imidaclollrid alone were found to be toxic compared to their combination with cco-friendly chemicals. The treatments B.t. and nimbecidine were found to be relatively safe to coccinellids.

Keywords

Cheilomenes sexmaculata, Eco-Friendly Chemicals, Micraspis univittata.
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  • Toxicity of Eco-Friendly Chemicals to Coccinellid Predators on Okra

Abstract Views: 206  |  PDF Views: 110

Authors

P. Sunitha
Department of Entomology, Agricultural College, Acharya N. G. Ranga Agricultural University, Bapatla 522 101, Andhra Pradesh, India
G. Ramachandrarao
Department of Entomology, Agricultural College, Acharya N. G. Ranga Agricultural University, Bapatla 522 101, Andhra Pradesh, India
P. Arjunarao
Department of Entomology, Agricultural College, Acharya N. G. Ranga Agricultural University, Bapatla 522 101, Andhra Pradesh, India
P. Rajasekhar
Department of Entomology, Agricultural College, Acharya N. G. Ranga Agricultural University, Bapatla 522 101, Andhra Pradesh, India

Abstract


Field experiments were carried out to study the relative toxicity of different groups of chemicals viz., dichlorvos, Nimbecidine, B.t. (Delfin), novaluron (lGR), spinosad and imidacloprid (neonicotinoid) and combination of dichlorvos, spinosad and imidacloprid with novaluron and B.t. against predatory coccinellid beetles Cheilomelles Sexmaculata (Fahricius) and Micraspis ullivittata (Hope). The results indicated that dichlorvos and imidaclollrid alone were found to be toxic compared to their combination with cco-friendly chemicals. The treatments B.t. and nimbecidine were found to be relatively safe to coccinellids.

Keywords


Cheilomenes sexmaculata, Eco-Friendly Chemicals, Micraspis univittata.