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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 (2017)
[Effective from January 1, 2017]
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
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Index Copernicus ICV 2017: 100.00
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Int.J.Curr.Microbiol.App.Sci.2018.7(11): 3244-3252
DOI: https://doi.org/10.20546/ijcmas.2018.711.374


Host Plant Preference of Sucking Pest to Different Tomato Genotypes under West Bengal Conditions
Prahlad Sarkar1, Satyajit Hembram2 and Siddikul Islam3
1All India Network Project on Jute and Allied Fibres, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, India
2Regional Research Station, Terai Zone, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, India
3Dakshin Dinajpur KVK, Uttar Banga Krishi Viswavidyalaya, Majhian, West Bengal, India
*Corresponding author
Abstract:

A field study was conducted to screen out six important tomato genotypes for resistance/ tolerance against important sucking pests and their natural enemies under West Bengal conditions. Aphid (Aphis gossypii Glover) and whitefly (Bemisia tabaci Genn.) were first appeared on the crop in third week of January and second week of February respectively. The peak populations of both the pest were reached in the third to fourth week of February. The maximum (r= -0.027 and -0.210) and minimum temperatures (r= -0.138 and -0.283) and minimum relative humidity (r= -0.191 and -0.031) were found to exert unfavorable influence on population development of whitefly and aphid species and showed negative correlation whereas maximum relative humidity (r=0.225 and 0.428) and sunshine hour (r=0.547 and 0.387) favoured the population build up. Results showed that none of tested tomato genotypes were found either as tolerant or resistant against aphid and whitefly. In terms of relative susceptibility against aphid and whitefly, the tomato genotypes could be arranged in the following sequence (higher to lower): NS 501>Priya>Roja> Romeo>Rubi>Patherkuchi and NS 501> Romeo>Rubi>Priya>Roja>Patherkuchi respectively. Here Patherkuchi was found less susceptible for both the pest aphid (16.05/leaf) and whitefly (0.20/leaf) as well as found to be immune (0.00 %) against ToLCV disease incidence. Remaining other genotypes were moderately susceptible (Ruby, Roja cherry, Romeo and Priya) to highly susceptible NS501 (20.77/leaf and 0.40/leaf).


Keywords: Tomato genotypes, Sucking pests, Natural enemies, Resistance
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How to cite this article:

Prahlad Sarkar, Satyajit Hembram and Siddikul Islam. 2018. Host Plant Preference of Sucking Pest to Different Tomato Genotypes under West Bengal Conditions.Int.J.Curr.Microbiol.App.Sci. 7(11): 3244-3252. doi: https://doi.org/10.20546/ijcmas.2018.711.374