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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(3): 995-1000
DOI: https://doi.org/10.20546/ijcmas.2018.703.118


Seasonal Incidence and Influence of Environmental Factors on the Aphid Complex on Cabbage (Brassica oleracea var. capitata L.) Crop
P. Bhagat*, Y.K. Yadu and V.K. Dubey
Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, India
*Corresponding author
Abstract:

Studies on seasonal incidence of aphid (Brevicoryne brassicae L.), infesting cabbage (Brassica oleracea var. capitata L.) work was carried out at College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during 2015-16 and 2016-17. The Brevicoryne brassicae L. damage was observed with a varying degree of infestation. The peak population of aphid, Brevicoryne brassicae L., was observed 172.5 / 20 plants and 140.45/ 20 plants in month of Febuary during both years (2015-16 and 2016-17), respectively. Thereafter population started declining. Correlation studies revealed that maximum (r = -0.19, r = 0.31), minimum (r = -0.15, r = -0.33) and average (r = -0.18, r = -0.32) temperature had non significantly negative association with aphids infesting cabbage during both years (2015-16 and 2016-17), respectively. The association between aphids of cabbage and relative humidity (r = 0.34, r = 0.39) as well as sunshine hours (r = -0.13, r = 0.26) was not established during years, 2015-16 and 2016-17 respectively. There was no definite relationship between aphid population in cabbage and rainfall in both years with their correlation values (r=-0.13 and r= 0.26), respectively.


Keywords: Population dynamics, Aphid, Cabbage, Correlation, Weather parameters
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How to cite this article:

Bhagat, P., Y.K. Yadu and Dubey, V.K. 2018. Seasonal Incidence and Influence of Environmental Factors on the Aphid Complex on Cabbage (Brassica oleracea var. capitata L.) Crop.Int.J.Curr.Microbiol.App.Sci. 7(3): 995-1000. doi: https://doi.org/10.20546/ijcmas.2018.703.118