Research Article | Volume: 4, Issue: 1, Jan-Feb, 2016

Evaluation of liquid formulations of Bt against gram pod borer, Helicoverpa armigera (Hubner) and spotted pod borer, Maruca vitrata (Geyer) in pigeonpea

G. V. Suneel Kumara L. Vijaya Bhaskarb Y. Satishc S. J. Rehamand   

Open Access   

Published:  Feb 19, 2016

DOI: 10.7324/JABB.2016.40107
Abstract

A field experiment was conducted during 2012-13, 2013-14 and 2014-15 at Agricultural Research Station, Darsi, Prakasam district, Andhra Pradesh to evaluate Bt liquid formulations and other biopesticides against gram pod borer, Helicoverpa armigera and spotted pod borer, Maruca vitrata in pigeonpea. There were 10 treatments (2 strains of Bt liquid formulation each at two doses, powdered Bt formulation, two doses of Beauvera bassiana, neem formulation, chemical check) including untreated control. Pooled analysis of three years data revealed that two sprays of chlorpyriphos 0.25% at fortnightly interval was significantly superior over other treatments in suppressing the larval population of H. armigera (av. 0.81 larvae/plant) and M. vitrata (av. 0.80 larvae/ inflorescence) on pigeon pea and recorded minimum pod (5.07%) and seed (3.24 %) damage with maximum 16.9 q/ha yield. It was however, at par with the Bt strain NBAII-BtG4 @ 2% in respect of pod damage (5.30%), seed damage (3.91%) and yield (15.3 q/ha). The Bt strain NBAII-BtG4 @ 2% ranked next best to the insecticidal spray in recording surviving larval population of H. armigera (av. 1.01 larvae / plant) and M. vitrata (av. 1.10 larvae / inflorescence). Moreover, the treatment PDBC-BT1 @ 2% was also found to be equally effective to superior ones. It is therefore biopesticides should be encouraged as eco-friendly insecticides.


Keyword:     Bt liquid formulations Biopesticides Eco-friendly management Helicoverpa armigera Maruca vitrata Pigeonpea.


Citation:

Suneel Kumar GV, Bhaskar LV, Satish Y and Rehaman SJ. Evaluation of liquid formulations of Bt against gram pod borer, Helicoverpa armigera (Hubner) and spotted pod borer, Maruca vitrata (Geyer) in pigeonpea. J App Biol Biotech. 2016; 4 (01): 039-042. DOI: 10.7324/JABB.2016.40107

Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.

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Reference

1. All India Co-ordinated Research Project on Pigeonpea. Project Coordinator’s Report. 2014-15; 18-19.

2. Lal SS, Singh NB. In Proceedings of National Symposium on Management of Biotic and Abiotic Stresses in Pulse Crops. Indian Institute for Pulse Research, Kanpur, India. 1998; 65-80.

3. Thakur RC, Neema KK, Singh OP. Losses caused by pod fly (M. obtusa) and pod borer (H. armigera) to pigeonpea in Madhaya Pradesh. Bhartiya Krishi Anusandhan patrika. 1989; 4: 107-111.

4. Bant SK, Harpreet KC. Evaluation of pigeonpea genotypes for resistance to pod borer complex, Indian Journal of Crop Science. 2006; 1(1-2): 194-196.

5. Malathi S, Vanisree S, Radhakrishna KV, Jalapathi Rao L. Response of Certain Pigeonpea Entries against Legume Pod Borer, Helicoverpa armigera. The Andhra Agricultural Journal. 2008; 55 (1): 235-236.

6. Rabindra RJ, Jayaraj S. Larval extracts and other adjuvants for increased efficacy of nucler polyhedrosis virus against Heliothis armigera larvae. Journal of Biological Control. 1988; 2: 102 – 105.

7. Sarode SV, Deotale RO, Jumde YS, Thakare HS. Field evaluation of Heliothis nuclear polyhedrosis virus ( HaNPV) for the management of Helicoverpa armigera (HB.) on pigeonpea. Indian Journal of Plant Protection. 1994; 56: 176 - 179.

8. Srinivasa M, Jagadeesh Babu CS, Anitha CN, Girish G. Laboratory evaluation of available commercial formulations of HaNPV against Helicoverpa armigera (Hub.). Journal of Biopesticides. 2008; 1(2): 138 - 139.

9. Shivanand R, Yankanchi, Sachinkumar R, Patil. Field efficacy of plant extracts on larval populations of Plutella xylostella L. and Helicoverpa armigera Hub. and their impact on cabbage infestation. Journal of Biopesticides. 2009; 2(1): 32 – 36.

10. Karel AK, Schoonhoven AV. Use of chemical and microbial insecticides against pests of common beans. Journal of Economic Entomology. 1986; 79: 1692-1696.

11. Panse VG, Sukhatme BV. Statistical methods for Agricultural workers, ICAR publication, New Delhi. 1967; pp. 100-161

12. Neerja Agrawal, Ram M. Preliminary field evaluation of biopesticides against gram pod borer, Helicoverpa armigera Hubner infesting chickpea. Insect Environment. 2013; 19(1): 8-10

13. Bhushan S, Raj Pal Singh, Ravi Shanker. Bioefficacy of neem and Bt against pod borer, Helicoverpa armigera in chickpea. Journal of Biopesticides. 2011; 4(1): 87 – 89.

14. Kulkarni NS. Utilization of fungal pathogen Nomuraea rileyi (Farlow) samson in the management of lepidopterous pests. Ph.D. thesis, University of Agricultural Sciences, Dharwad. 1999; 154.

15. Gundannavar KP, Lingappa S, Giraddi RS. Biorational approaches for the management of pod borer in pigeonpea ecosystem. Karnataka Journal of Agricultural Sciences. 2004; 17(3): 597-599.

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