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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 2547-2555
DOI: https://doi.org/10.20546/ijcmas.2017.611.300


Persistence Toxicity and Field Evaluation of Green Insecticide Spinetoram 12 SC w/v (11.7% w/w) against Helicoverpa armigera Hubner on Okra
M. Visnupriya* and N. Muthukrishnan
Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore-3, Tamil Nadu, India
*Corresponding author
Abstract:

Fruit borer, Helicoverpa armigera (Hubner) is a persistent pest on okra among fruit borer complex throughout India. Experiments were undertaken to investigate the persistence of spinetoram 12 SC against larval stage of H. armigera in the laboratory and to evaluate the effectiveness in the field in two seasons. The results of persistence toxicity revealed that there was continuous larval reduction up to 14 DAT under the laboratory condition in different doses of biological green insecticide spinetoram (36, 45 and 54 g a.i/ha). This emphasizes the need to reapply spinetoram 10 – 14 days after the first application (peak of biological activity) for effective control. In field experiments spinetoram 12 SC was significantly effective at 45 and 54 g a.i./ha when sprayed thrice at 15 days interval and minimized the incidence of fruit borer and increased the fruit yield.


Keywords: Spinetoram 12 SC, Okra, Persistence, Saccharapolyspora spinosa, Helicoverpa armigera.
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How to cite this article:

Visnupriya, M. and Muthukrishnan, N. 2017. Persistence Toxicity and Field Evaluation of Green Insecticide Spinetoram 12 SC w/v (11.7% w/w) against Helicoverpa armigera Hubner on Okra.Int.J.Curr.Microbiol.App.Sci. 6(11): 2547-2555. doi: https://doi.org/10.20546/ijcmas.2017.611.300