Validation of DOR Bt 127 SC against capitulum borer, Helicoverpa armigera and coccinellid predators in Sunflower

Validation of DOR Bt 127 SC against capitulum borer, Helicoverpa armigera and coccinellid predators in Sunflower


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Authors

  • K M SRINIVAS REDDY AICRP on Sunflower, ZARS, GKVK, Bengaluru 560 060
  • C P MANJULA AICRP on Sunflower, ZARS, GKVK, Bengaluru 560 060
  • K S SOMASHEKHAR AICRP on Sunflower, ZARS, GKVK, Bengaluru 560 060
  • S D NEHRU AICRP on Sunflower, ZARS, GKVK, Bengaluru 560 060
  • M S UMA AICRP on Sunflower, ZARS, GKVK, Bengaluru 560 060

https://doi.org/10.56739/jor.v40iSpecialissue.145325

Keywords:

Capitulum borer, Coccinellid predators, DOR Bt 127 SC, Sunflower

Abstract

DOR Bt 127 SC was evaluated against capitulum borer Helicoverpa armigera and coccinellid beetles in sunflower crop during Kharif 2020 at farmers field, Myakalurahalli, Hiriyur Tq, Chitradurga dt., Karnataka. DOR Bt 127 SC was compared with Chlorantraniliprole 18.5 SC and farmer’s practice. Chlorantraniliprole 18.5 Sc treated plot registered significantly lowest population (0.23) of H. armigera and was on par with Bt 127 Sc (0.40) during 10 days after spray. Farmers’ practice registered significantly highest population (1.33) of H. armigera.

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References

Bhat, N.S. and Virupakshappa, K. 1993. Integrated Pest management in sunflower. In: group discussion on IPM strategies in oilseeds in India 23-24 December, 1993, Punjab Agriculture University, Ludhiana.

Jayewar, N.E. and Sonkamble, M.M. 2015, Evaluation of biopesticides against the capitulum borer Helicoverpa armigera on sunflower, J Biopest 8:93-97. DOI: https://doi.org/10.57182/jbiopestic.8.2.93-97

Manjunatha, T.M., Bhatnagar, V.S., Pawar C.C. and Sitanatham, S. 1985. Economic importance of Heliothis spp. in India and an assessment of their natural enemies and host plants. In: proceedings of biological control of Heliothis: Increasing effectiveness of natural enemies New Delhi, India, 11-15 Nov., 1985. PP. 197- 228.

Margal, S. M. 1990. Studies on estimation of losses in sunflower cultivars due to Helicoverpa armigera Hub. (Lepidoptera: Noctuidae) and possible occurrence of biotypes. Ph. D thesis, University of Agricultural Sciences, Bangalore, 146PP.

Journal of Oilseeds Research

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Submitted

2023-11-16

Published

2023-12-14

Issue

Vol. 40 No. Specialissue (2023): Journal of Oilseeds Research

Section

Articles

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The Journal of Oilseeds Research reserves all the copy rights of the published articles and prior permission is to be taken from the journal office if any part of the published articles is to be reproduced in any form in any other publication.

How to Cite

K M SRINIVAS REDDY, C P MANJULA, K S SOMASHEKHAR, S D NEHRU, & M S UMA. (2023). Validation of DOR Bt 127 SC against capitulum borer, Helicoverpa armigera and coccinellid predators in Sunflower: Validation of DOR Bt 127 SC against capitulum borer, Helicoverpa armigera and coccinellid predators in Sunflower. Journal of Oilseeds Research, 40(Specialissue). https://doi.org/10.56739/jor.v40iSpecialissue.145325