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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.2018.7(10): 2936-2948
DOI: https://doi.org/10.20546/ijcmas.2018.710.341


Seasonal Incidence of Different Sucking Pests of Chilli and Their Natural Enemies under West Bengal Condition
Subhashree Priyadarshini1*, Ashima Mishra2, Anjan Kumar Nayak2 and Pavan Thakoor2
1Department of Agricultural Entomology, Professor Jayashankar Telangana State Agricultural University, Hyderabad- 500030, Telangana, India
2Department of Agricultural Entomology, Bidhan Chandra Krishi Viswavidyalaya,
West Bengal-741235, India
*Corresponding author
Abstract:

Seasonal incidence of different sucking pests of chilli viz., thrips (Scirtothrips dorsalis Hood), mites (Polyphagotarsonemus latus Banks), Aphid (Aphis gossypii Glov.), Whitefly (Bemesia tabaci Genn.) and Jassids (Amrsca bigutula bigutula) and natural enemies like Coccinellids and spiders were worked out in the present study during 2016 at District Seed Farm (AB Block) of Bidhan Chandra Krishi Viswavidyalaya located at Kalyani, Nadia, West Bengal. Peak population of thrips was recorded to be in 18th standard week i.e. 12.58 per three leaves when the average temperature, relative humidity and weekly total rainfall were 31.2 0c, 66.79% and 17.8 mm respectively. For mite maximum population was recorded to be 28.55 per three leaves, when the average temperature, relative humidity and weekly total rainfall were recorded to be 31.040C, 74.29% and 71.1mm respectively. Similarly for Aphids peak population attained by 17th standard week i.e. 30.45 per three leaves when average temperature, relative humidity and weekly total rainfall were 33.760C, 67.29% and 0.0 mm respectively. Observation taken showed that whitefly incidence started from 1st standard week (0.44/three leaves) reaching a peak population in 44th standard week i.e. 6.22 per three leaves when the average temperature, relative humidity and weekly total rainfall were 27.720 C, 84.00% and 7.4mm respectively. Highest population of jassids reaching in 20th standard week i.e. 1.45 per three leaves when the average temperature, relative humidity and weekly total rainfall were 29.050 C, 79.86% and 67.5 mm respectively. Regarding natural enemies the observation was taken as coccinellid beetle per plant and found that coccinellid population was at its peak during 43rd standard meteorological week i.e. 18.22 per plant when average temperature, relative humidity and weekly total rainfall were 28.290 C, 80.07% and 0.0 mm respectively and Population of spiders were found to be maximum during 35th standard meteorological week i.e. 3.00 per plant when average temperature, relative humidity and weekly total rainfall were 29.060 C, 61.57% and 16.2 mm respectively.


Keywords: Thrips, Mites, Aphids, Jassids, Whiteflies, Coccinellids, Spiders, Populations
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How to cite this article:

Subhashree Priyadarshini, Ashima Mishra, Anjan Kumar Nayak and Pavan Thakoor. 2018. Seasonal Incidence of Different Sucking Pests of Chilli and their Natural Enemies under West Bengal Condition.Int.J.Curr.Microbiol.App.Sci. 7(10): 2936-2948. doi: https://doi.org/10.20546/ijcmas.2018.710.341