ISSN: 0973-7510

E-ISSN: 2581-690X

J. Raju1 , Nagarajappa Adivappar1, K. Jayalakshmi1, P. Narayanaswamy1, H.B. Narasimhamurthy2, S. Shivanna1 and H. Ravindra1
1Zonal Agricultural and Horticultural Sciences, UAHS, Shivamogga, Karnataka – 577 225, India.
2Department of Plant Pathology, UAHS, Shivamogga, Karnataka – 577 225, India.
J. Pure Appl. Microbiol., 2016, 10 (2): 1641-1644
© The Author(s). 2016
Received: 03/01/2015 | Accepted: 09/02/2015 | Published: 30/06/2016
Abstract

Capsicum is an important vegetable crop of Karnataka. Among the various diseases affecting capsicum, Phytophthora root rot (Phytophthora capsici) and root-knot nematode (Meloidogyne incognita) infestation are considered as the most destructive under protected cultivation. Totally six fungicides and seven bioagents were screened against P.capsici under in vitro. Among the fungicides, Bordeaux mixture and Metalaxyl MZ were highly inhibitory to P. capsici. Among the antagonists, Trichoderma were most effective in inhibiting the growth of P. capsici. Least inhibition was noticed with Bacillus sp followed by Pseudomonas.  Effect of various disease management tools on seedling emergence, Phytophthora root rot incidence and root knot index were studied. As part of integrated management strategies an investigation was carried out to manage the disease through soil application of fungicide, nematicide and bioagents. Metalaxyl MZ significantly reduced the Phytophthora root rot incidence of 69.23% disease reduction over control under polyhouse condition. Integration of Carbofuran + P. lilacinus (0.33) also proved superior in managing root knot disease over control.

Keywords

Phytopthora capsici, Meloidogyne incognita, Capsicum annuum, Management.

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.