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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here
ICV 2022: 95.28
Index Copernicus ICI Journals Master List 2022 - IJCMAS--ICV 2022: 95.28
For more details click here
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Original Research Articles                      Volume : 6, Issue:9, September, 2017
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com /
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38
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Int.J.Curr.Microbiol.App.Sci.2017.6(9): 3295-3300
DOI: https://doi.org/10.20546/ijcmas.2017.609.406


Seasonal Incidence of Thrips, Scirtothrips dorsalis Hood on Grapes, Vitis vinifera L. (cv. Thompson Seedless) in Bijapur
Nagaraj R. Patil1*, A.M. Nadaf1, Gangadhar B. Narabenchi1, D.R. Patil2 and B.S. Sagar2
1Department of Horticultural Entomology, College of Horticulture, University of Horticultural Sciences, Bagalkot – 587 104, Karnataka, India
2Department of Fruit Science, College of Horticulture, University of Horticultural Sciences, Bagalkot – 587 104, Karnataka, India
*Corresponding author
Abstract:

Insect pests are the important production constraints in grape cultivation next to diseases. Survey of Scirtohrips dorsalis Hood at progressive former field for grape, Bijapur during 2013-14 at weekly, revealed that thrips population was observed immediately after both April and October pruning. Highest population of 14.60 thrips/shoot was observed during third week of May after April pruning, which coincided with inflorescence period. Similarly thrips population was observed with highest of 16.25 thrips/inflorescence during first week of December after October pruning. Correlation studies with weather parameters and insect incidence revealed that evening relative humidity was significantly negative correlation with population of thrips (-0.58*) and signifact positive correlation with population of thrips (0.66*) after April pruning. Thrips population was negatively correlated with minimum temperature (-0.35), wind speed (-0.39) and rainfall nil after October pruning.


Keywords: Grapes, Seasonal incidence, Scirtothrips dorsalis.

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How to cite this article:

Nagaraj R. Patil, A.M. Nadaf, Gangadhar B. Narabenchi, D.R. Patil and Sagar, B.S. 2017. Seasonal Incidence of Thrips, Scirtothrips dorsalis Hood on Grapes, Vitis vinifera L. (cv. Thompson Seedless) in Bijapur.Int.J.Curr.Microbiol.App.Sci. 6(9): 3295-3300. doi: https://doi.org/10.20546/ijcmas.2017.609.406
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.

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