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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2017, Vol. 5, Issue 4
Population dynamics of sheath mite, Steneotarsonemus spinki Smiley infesting rice cultivar IET- 4786 and its management under Gangetic Basin of West Bengal

Krishna Karmakar, Suvash Chandra Bala and Sunil Kr. Ghosh

The present investigation was conducted to study the population dynamics of rice sheath mite and their sustainable management at District Seed Farm, Bidhan Chandra Krishi Viswavidyalaya, Kalyani during kharif season of 2013. Very low mite population was noticed during August and 1st week of September. Thereafter, the mite population start to increase gradually and their peak population attained during the period of 25.9.13 to 15.10.13 at dough to ripening stage of the crop. The highest population of mite observed at ripening stage of the crop. Both the temperature and relative humidity have been found to be positive correlation with mite population. The mite population was observed to be infested the crop at the late tillering stage during 3rd week of August. Acaricides found to be least effective against the mite for sustainable management of sheath mite however; profenophos provided higher mortality followed by dicofol. The highest yield was also obtained from profenophos treated plots (4.80 t/ha) which was at par with dicofol treated plots (4.65 t/ha).
Pages : 663-666 | 1116 Views | 129 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Krishna Karmakar, Suvash Chandra Bala, Sunil Kr. Ghosh. Population dynamics of sheath mite, Steneotarsonemus spinki Smiley infesting rice cultivar IET- 4786 and its management under Gangetic Basin of West Bengal. J Entomol Zool Stud 2017;5(4):663-666.

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