Journal of Biological Control

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Safety evaluation of insecticides to the lady beetle, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae), a major predator of mealybugs


Affiliations
1 Department of Agricultural Entomology, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, India
2 ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru - 560024, Karnataka, India
3 Department of Apiculture, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, India
4 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, India
 

The present experiment was aimed at safety evaluation of different insecticides to Cryptolaemus montrouzieri Mulsant, a major predator of mealybugs. In order to understand the impact of chemical insecticides on this predator, different bioassays were carried out. The results of the study showed that the Percent mortality of C. montrouzieri at 24 HAT was highest in profenophos 50% EC (49.33%) followed by thiamethoxam (36.00%) and dinotefuran (30.67%). However, azadirachtin, buprofezin and pymetrozine were found comparatively safer insecticide to C. montrouzieri. Therefore, both of these insecticides, need to be evaluated further under different agro-climatic zones to confirm their suitability, for mealybug management in cotton ecosystem without adversely affecting the performance of C. montrouzieri.

Keywords

Azadirachtin, Bioassay, Buprofezin, Dinotefuran, Phenacoccuss Solenopsis, Profenophos, Pymetrozine, Thiamethoxa.
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  • Safety evaluation of insecticides to the lady beetle, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae), a major predator of mealybugs

Abstract Views: 227  |  PDF Views: 120

Authors

T. D. Nidheesh
Department of Agricultural Entomology, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, India
A. N. Shylesha
ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru - 560024, Karnataka, India
A. H. Jayappa
Department of Agricultural Entomology, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, India
K. S. Jagadish
Department of Apiculture, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, India
Kuldeep Sharma
Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, India

Abstract


The present experiment was aimed at safety evaluation of different insecticides to Cryptolaemus montrouzieri Mulsant, a major predator of mealybugs. In order to understand the impact of chemical insecticides on this predator, different bioassays were carried out. The results of the study showed that the Percent mortality of C. montrouzieri at 24 HAT was highest in profenophos 50% EC (49.33%) followed by thiamethoxam (36.00%) and dinotefuran (30.67%). However, azadirachtin, buprofezin and pymetrozine were found comparatively safer insecticide to C. montrouzieri. Therefore, both of these insecticides, need to be evaluated further under different agro-climatic zones to confirm their suitability, for mealybug management in cotton ecosystem without adversely affecting the performance of C. montrouzieri.

Keywords


Azadirachtin, Bioassay, Buprofezin, Dinotefuran, Phenacoccuss Solenopsis, Profenophos, Pymetrozine, Thiamethoxa.

References





DOI: https://doi.org/10.18311/jbc%2F2020%2F25163