Biological control of key pest of jute, Spilosoma obliqua Walker (Lepidoptera: Arctiidae) - A case study

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Authors

  • B. S. Gotyal
     ICAR- Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata – 700120, West Bengal ,IN
  • V. Ramesh Babu
     ICAR- Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata – 700120, West Bengal ,IN
  • S. Satpathy
     ICAR- Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata – 700120, West Bengal ,IN
  • K. Selvaraj
     ICAR- National Bureau of Agricultural Insect Resources, H. A. Farm Post, Bellary Road, Hebbal, Bangalore – 560024, Karnataka ,IN

DOI:

https://doi.org/10.18311/jbc/2019/22986

Keywords:

Biocontrol, jute, natural enemies, Spilosoma obliqua

Abstract

Surveys were conducted in intensive jute growing areas of West Bengal to collect information on natural enemies and other entomopathogens infecting jute hairy caterpillar Spilosoma obliqua (Lepidoptera: Arctiidae). The jute crop supports large number natural enemies of S. obliqua and entomopathogens. Among the braconid larval parasitoids, Meteorus spilosomae (Hymenoptera: Braconidae) and Protapantales obliquae (Hymenoptera: Braconidae) were the key mortality factors. The activity of these parasitoids was noticed from mid- May to mid-July during the cropping season. The parasitoid, P. obliquae is a gregarious, endoparasitoid specific to S. obliqua and parasitize to the extent of 38% up to third instar of larvae whereas M. spilosomae reported to cause up to 77% of parasitisation on S. obliqua under field condition. Bacillus thuringiensis and nuclear polyhedrosis virus were found be very effective with mortality of, 64 and 93% respectively. These parasitoids and pathogens can be used as potential bio-control agents against jute hairy caterpillar through conservation, augmentation and mass multiplication.

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Published

2019-12-05

How to Cite

Gotyal, B. S., Babu, V. R., Satpathy, S., & Selvaraj, K. (2019). Biological control of key pest of jute, <i>Spilosoma obliqua</i> Walker (Lepidoptera: Arctiidae) - A case study. Journal of Biological Control, 33(3), 222–224. https://doi.org/10.18311/jbc/2019/22986

Issue

Volume 33, Issue 3, September 2019

Section

Research Articles
Crossref
Scopus
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Europe PMC
Received 2018-12-12
Accepted 2018-12-17
Published 2019-12-05

 

References

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