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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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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(5): 927-937
DOI: https://doi.org/10.20546/ijcmas.2019.805.107


Incidence of Whiteflies and Viral Diseases of Bittergourd (Momordica charantia L.) in Southern Karnataka, India
S. Onkara Naik1*, G.S. Kannan2, V. Venkataravanappa1 and A.K. Chakravarthy1
1Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research, Bengaluru, Karnataka -560 089, India
2Faculty of Agriculture, Gandhigram Rural Institute-Deemed University, Gandhigram,Dindigul, Tamil Nadu- 624 302, India
*Corresponding author
Abstract:

Surveys conducted on the incidence of whiteflies (Bemisia tabaci Gen.) and viral diseases on bitter gourd at Bengaluru, Mandya, Mysuru, Tumkur, Kolar and Chikkaballapur districts of South Karnataka during 2015-16 and 2016-17. In2015-16Kharif, Disease Incidence (DI) ranged from 19.25 to 40.67% and Vulnerability Index (VI) 12.83 to 27.11%with a whitefly population of 2.74 to 5.81 per plant in Tumakuru and Mandya districts respectively. In rabi season, disease incidence ranged from 23.85 to 50.56% and vulnerability index 15.90 to 33.70% with a whitefly population of 3.32 to 7.23 per plant in Mysore and Chikkaballapur districts. During 2016-17, in Kharif, disease incidence ranged from 18.18 to 45.44% and vulnerability index 12.12 to 30.30% with a whitefly population of 2.54 to 6.51 per plant in Mysuru and Mandya districts, respectively. In rabi season, disease incidence ranged from 27.00 to 48.85% and vulnerability index was 18.00 to 32.57% with a whitefly population of 3.82 to 6.98 per plant in Mysore and Kolar districts respectively. A positive correlation with disease incidence and whitefly population on bitter gourd was obtained. The activity of whiteflies and the viral disease incidence recorded higher in rabi than in kharif.


Keywords: Bitter gourd, Virus, Whiteflies, Survey, district, Village
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How to cite this article:

Onkara Naik, S., G.S. Kannan, V. Venkataravanappa and Chakravarthy, A.K. 2019. Incidence of Whiteflies and Viral Diseases of Bittergourd (Momordica charantia L.) in Southern Karnataka, India.Int.J.Curr.Microbiol.App.Sci. 8(5): 927-937. doi: https://doi.org/10.20546/ijcmas.2019.805.107