Integrated Root Rot Management of Ashwagandha(Withania somnifera (L) Dunal)
Asian Resonance(P: ISSN No. 0976-8602 RNI No. UPENG/2012/42622
VOL.-III, ISSUE-III, JULY-2014 E: ISSN No. 2349-9443)
Abstract
Dept of Plant Pathology,
Maharana Pratap University
of Agriculture and
Technology,
Udaipur, Rajasthan
Ravindra Pratap Singh
Dept of Plant Pathology,
Maharana Pratap University
of Agriculture and
Technology,
Udaipur, Rajasthan
Lekha
Dept of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan
Ashwagandha [Withania somnifera (L) Dunal] is an important medicinal herbs, mainly proned to the pathogens causing root rot disease resulted significant economic yield losses. An organic module consisting of fungicides, Neem-based formulations and biocontrol agent Trichoderma viride was evaluated for sustainable organic management of root rot (Rhizoctonia solani and Fusarium solani) of Ashwagandha under sick plot condition during Kharif- 2010 - 12. Integration of soil amended with Neem cake manure @ 500 g/m2 + seed treatment with fungicide Mancozeb 63% + Carbendazim 12% (SAAF) @ 0.2% plus with T. viride talc based formulation @ 10g/kg resulted in the highest germination, minimum root rot and maximum quality root yield. Determination of population density by dilution plating revealed that disease suppression due to various treatments was mainly due to reduction in population density of R. solani and F solani. The integrated treatment also improved root quality parameter like, number of roots/plot, length (cm), and diameter (mm) as compared to their individual treatment as well as over the untreated control.
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