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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2019, Volume : 7, Issue : 1
First page : (405) Last page : (411)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7353

Population Dynamics of Pests in Okra Cv. Arka Anamika in Relation to Weather Parameters

N. Akhila*, D. Anitha Kumari, M. Hanuman Nayak and D. Vijaya

Sri Konda Laxman Telangana State Horticultural University
College of Horticulture, Rajendranagar, Hyderabad, Telangana 500030
*Corresponding Author E-mail: akhilanelapatla111@gmail.com
Received: 15.12.2018  |  Revised: 20.01.2019   |  Accepted: 28.01.2019

 ABSTRACT

A study was exercised to evaluate impact of weather factors on population dynamics of some of major insect pests of okra during kharif season of year 2017-18. The study was conducted on population dynamics of pests in okra Cv Arka Anamika in relation to weather parameters at vegetable research station, Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad. The results of the present investigation demonstrated that the incidence of whitefly, jassids and shoot and fruit borer was observed. The correlation between maximum temperature and whitefly incidence indicated a positive non- significant relationship and the maximum relative humidity has a negative significant correlation and minimum relative humidity showed a positive significant correlation on whitefly incidence. The correlation between rainfall, sunshine hours, and whitefly was negative non-significant effect. Both the maximum temperature and minimum temperature were positively correlated with the population buildup of jassids. Rainfall has shown positive influence on the population buildup of jassids whereas sunshine hours has shown negative correlation and non-significant. The correlation between minimum temperature and shoot and fruit borer incidence indicated a negative significant relationship whereas maximum relative humidity exerted a positive significant correlation. The correlation between rainfall, sunshine hours and shoot and fruit borer larval incidence was positively non -significant. The coefficient of determination value indicated that meterological parameters could influence the variation in the population of whitefly, jassids and borers.

Key words: Okra, Insect pests, Weather parameters.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Akhila, N., Kumari, D.A., Nayak, M. H., and Vijaya, D., Population Dynamics of Pests in Okra Cv. Arka Anamika in Relation to Weather Parameters, Int. J. Pure App. Biosci.7(1): 405-411 (2019). doi: http://dx.doi.org/10.18782/2320-7051.7353