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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
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.2019.8(12): 351-360
DOI: https://doi.org/10.20546/ijcmas.2019.812.047


Seasonal Incidence of Pink Bollworm Pectinophora gossypiella (Saunders) on Bt Cotton
Muttappa Yalawar* and S. B. Patil
Department of Agricultural Entomology, College of Agriculture, Vijayapura- 586 122, India Department of Agricultural Entomology, UAS- Dharwad-580 009, India
*Corresponding author
Abstract:

The field experiments were carried out during Kharif 2017-18 at Hittinahalli village near the College of Agriculture, Vijayapura. The contemporary research unveiled that peak moth activity was observed during the II week of December (47th standard meteorological week) (52.78 moths / trap / night). Later on, the trap catches declined gradually with a minimum trap catch of 12.50 moths / trap / night. The rosette flowers were ranged from (2.25 to 15.45%) with seasonal mean of (9.05 %). While the incidence in green bolls was noticed from the first fortnight of September (34th SMW) and rose gradually to reach its zenith during the second fortnight of December (48th SMW). The larval incidence ranged from (9.00 to 51.00 larvae/50 bolls) with a mean of (34.75 larvae /50 bolls) and the green boll damage ranged from (7.60 to 42.21 %) with mean of (30.52 %). Moreover, open boll damage was ranged from (48.36 to 53.48 %) with a mean of (53.45 %) during the cropping season. Furthermore, locule damage ranged from (24.71 to 39.35 %) with a mean of (39.05 %). The trap catches had a negative and non-significant relationship with rainfall and a negative and significant relationship with maximum temperature.


Keywords: Trap catch, Pink bollworm, Pheromone trap, Incidence and Bt
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How to cite this article:

Muttappa Yalawar and Patil, S. B. 2019. Seasonal Incidence of Pink Bollworm Pectinophora gossypiella (Saunders) on Bt Cotton.Int.J.Curr.Microbiol.App.Sci. 8(12): 351-360. doi: https://doi.org/10.20546/ijcmas.2019.812.047