Research Article | Volume: 4, Issue: 4, July-August, 2016

Selection of some fungal pathogens for biological control of Trianthema portulacastrum L., a common weed of vegetable crops

Gaddeyya Gandi Pilli P. K. Ratna Kumar Bharathi Pilaka   

Open Access   

Published:  Aug 26, 2016

DOI: 10.7324/JABB.2016.40411

Trianthema portulacastrum Linn. is a weed plant of Aizoaceae (Fig marigold family). It is indigenous to South Africa but widely distributed in India, Sri Lanka (formerly Ceylon) and tropical and subtropical areas as a noxious weed. The mycoflora namely Alternaria alternata (Fr.) Keissler., Colletotrichum capsici (Syd.) E.J. Butler & Bisby., Bipolaris maydis (Y.Nisik. & C.Miyake) Shoemaker., Curvularia lunata (Wakker) Boedijin., Curvularia tuberculata Sivan. and Gibbago trianthemae E.G. Simmons was isolated from highly infected portions of the weed. The pathogenicity of various fungal species was confirmed by Koch’s postulates. The host specificity of the isolates of horse purslane was tested on green house plants by spore treatment. Among the isolates, Gibbago trianthemae was highly aggressive to weed and it was considered as potential biocontrol agent (Mycoherbicidal agent) against horse purslane weed.

Keyword:     Biological control Gibbago trianthemae Mycoherbicide Trianthema portulacastrum L.


Gaddeyya G, Ratna Kumar PK, Bharathi P. Selection of some fungal pathogens for biological control of Trianthema portulacastrum L., a common weed of vegetable crops. J App Biol Biotech. 2016; 4 (04): 090-096. DOI: 10.7324/JABB.2016.40411

Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.

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