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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 5
First page : (411) Last page : (415)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8381

Repellency Effect of Different Plant Protectants against Lesser Grain Borer, Rhyzopertha dominica (Fabricius)

Nila Win¹ and Krishna Rolania^2*
1Ph. D student, ²Assistant Scientist,
Dept. of Entomology, CCSHAU, Hisar-125004, Haryana
*Corresponding Author E-mail: krishna81rolania@rediffmail.com
Received: 3.09.2020 | Revised: 15.10.2020 | Accepted: 22.10.2020 

 ABSTRACT

A study was conducted to evaluate the repellent effect of different plant protectants against lesser grain borer, Rhyzopertha dominica (Fabricius). The repellent effect was evaluated by using the filter paper impregnation method and the observations were recorded after one hour and 24 hours of treatment. It was found that repellent activity was proportional to the time of exposure and longer time exposure had higher repellency effect. The mean repellency value revealed that eucalyptus oil (77.49 %), malathion (75.00 %), neem oil (73.33 %) and turmeric powder (66.66%) categorized repellent and comes under repellency class IV. Neem seed kernel (50%), diatomaceous earth (48.33%) and neem leaves (43.5%) categorized moderately repellent and come under repellency class III. Black pepper (31.66 %), red chilli (28.33%) and mustard oil (23.33 %) were low repellent and come under repellency class II. The lowest repellency was observed in sand (18.33%) which was categorized as very low repellent and repellency class was class I. In fact, it indicates the effect of plant protectants as repellent against insect pests of stored grains.

Keywords:Rhyzopertha dominica, Repellency, Plant protectants, Exposure.

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

Cite this article: Win, N., & Rolania K. (2020). Repellency Effect of Different Plant Protectants against Lesser Grain Borer, Rhyzopertha dominica (Fabricius), Ind. J. Pure App. Biosci. 8(5), 411-415. doi: http://dx.doi.org/10.18782/2582-2845.8381