Eco-friendly management of anthracnose of chilli caused by Colletotrichum capsici
Journal Title: Journal of Applied and Natural Science - Year 2015, Vol 7, Issue 1
Abstract
The anthracnose of chilli caused by Colletotrichum capsici is a widespread problem limiting the profitable cultivation and seed production of chilli throughout the major chilli growing regions of India. Four isolates (SCC1, SCC2, SCC3 and SCC4) of C. capsici were collected from different chilli growing areas of West Bengal. An experiment on efficacy of four botanical oils viz., Garlic (Allium sativum), Neem (Azadirachta indica), Polyalthia (Polyalthia longifolia) and Citronella(Cymbopogon nardus) at concentrations of 0.05%, 0.1% and 0.2% and two isolates each of three biocontrol agents (Trichoderma harzianum, T. viride and Pseudomonas flourescens) were carried out against these isolates of C. capsici in vitro. The result revealed significant (5% level of significance) antifungal activities of these botanicals and biocontrol agents. Garlic gave cent per cent inhibition of mycelial growth of all the four isolates of C. capsici at all the concentrations tested. However, neem showed cent percent inhibition of mycelial growth of C. capsici at 0.1%. Citronella was least effective among the botanical oils. Among the biocontrol agents tested T. harzianum isolate Th-2 was found most effective giving 77.78%, 100%, 83.33 % and 88.89% inhibition on the mycelial growth of SCC1, SCC2, SCC3 and SCC4 respectively followed by T. harzianum isolate Th-1 inhibiting 74.00%, 78.9% 81.7% and 80.90% of the mycelial growth of SCC1, SCC2, SCC3 and SCC4 respectively. P. fluorescens was least effective. Thus, garlic, neem, polyalthia, T. harzianumand T. viride can be utilized for management of anthracnose of chilli.
Authors and Affiliations
Salma Begum, P. S. Nath
Keywords
Related Articles
- EP ID EP282565
- DOI 10.31018/jans.v7i1.574
- Views 106
- Downloads 0
An overview on floral diversity of Arawali forest: A potential source for natural dyes
The present study presents an overview on floral diversity and identifies Non-timber Forest Products (NTFP) that can be used as Natural Dye sources in textile sector. This was a descriptive study; Historical, as well as...
Phyto-availability of chromium to fluted pumpkin (Telfairia occidentalis HookF.)in an ultisol
The present study was conducted to determine the influence of Cr on some agronomic characters of Telfairia occidentalis nutrient content and uptake and some chemical properties of soil. In the greenhouse trial, chromium...
Variability in yield traits of TILLING population of bread wheat (Triticum aestivum L.)
Mutagenesis is one of the powerful genetic strategies for crop improvement programmes. A chemically induced mutated genetic resource for detecting novel variations by Targeting Induced Local Lesions IN Genomes (TILLING)...
Estimation of wheat crop evapotranspiration using NDVI vegetation index
The evapotranspiration of the wheat crop grown in Tarafeni South Main Canal (TSMC) irrigation command area of West Bengal, India was estimated based on Normalized Difference Vegetation Index (NDVI) from LANDSAT images. T...
Influence of agronomic practices on severity of late blight of potato (Phytophthora infestans)
An experiment was carried out to find out the influence of such agronomic practices on severity of the disease and to seek a proper cultural practice for management late blight of potato (Phytophthora infestans). The exp...