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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2022, Volume : 10, Issue : 3
First page : (10) Last page : (16)
Article doi: :

Biological Control of Collar Rot Disease of Groundnut Caused by Aspergillus niger

Suman Lora1* and Tahira Begum2
1,2Department of Botany, S.P.C. Govt. College, Ajmer
*Corresponding Author E-mail:
Received: 15.04.2022 | Revised: 28.05.2022 | Accepted: 9.06.2022 


The collar rot incidence in groundnut is one of the most severe diseases that reduce groundnut yield. The collar rot disease was reduced by applying Trichoderma viride, Trichoderma harzianum, Pseudomonas fluorescens and plant extracts (Allium sativum, Ocimum sanctum, Tagetes erecta, Azadirachta indica and Datura stramonium). In vitro studies of fungal and bacterial antagonists, viz., Trichoderma spp. and Pseudomonas fluorescens, indicated that T. harzianum was more effective in inhibiting A. niger. In pot culture experiment, the combined effect of seed treatment with T. harzianum resulted in significant reduction of collar rot. In vitro studies of plant extracts indicated that garlic extract was more effective in inhibiting A. niger. Combination of antagonist, fungicide and plant extracts also improved the growth parameters like length of the plant, biomass and yield, besides decreasing the disease incidence. Biological management of collar rot disease is effective and also eco-friendly.

Keywords: Biological control, Aspergillus niger, plant extracts, collar rot.

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Cite this article: Lora, S., & Begum, T. (2022). Biological Control of Collar Rot Disease of Groundnut Caused by Aspergillus niger, Ind. J. Pure App. Biosci.10(3), 10-16. doi: