Potential Bio Control of Echinochloa Crus-galli (Barnyard Grass) by Curvularia Lunata LD2 as a Mycoherbicide
Nandhini Chandrasekaran1, Ganesh Punamalai2, Yoganathan Kamaraj3

1Nandhini Chandrasekaran, Research Scholar, Department of Microbiology, Faculty of Science, Annamalai University, (Tamil Nadu), India.
2Ganesh Punamalai, Assistant Professor, Department of Microbiology, Faculty of Science, Annamalai University, (Tamil Nadu), India.
3Yoganathan Kamaraj, Research, Associate Professor, Scigen Research and Innovation Pvt, Lt., Thanjavur, (Tamil Nadu), India.
Manuscript received on 19 November 2019 | Revised Manuscript received on 04 December 2019 | Manuscript Published on 10 December 2019 | PP: 281-286 | Volume-8 Issue-3S2 October 2019 | Retrieval Number: C10541083S219/2019©BEIESP | DOI: 10.35940/ijrte.C1054.1083S219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Echinochloa crus-galli (commonly known as barnyard grass) is a noxious weed causing loss of several economically important field crops in tropical regions . An intensive work on the screening of the bio control agents was accomplished through in vitro epidemic study to control weed populations. The foliar disease symptoms on infected weed plant caused by fungal pathogens represented as round to irregular maroon spots with dark borders and the epidemic was indent fields as leaf spot disease. The pathogen allied with the infection of barnyard grass was isolated from infectious propagules by inoculation of leaf bites on a potato dextrose agar (PDA). The caused agent of leaf spot was confirmed as barnyard grass by Koch’s postulates. The mycoherbicide ability of Curvularia lunata to control barnyard grass has been examined through visual (standard are diagram) and statistical methods. The results revealed that the pathogen causes significantly severe infection on host weed and destructs the weed population by leaf spot diseases. The findings of the research suggested that the isolate barnyard grass is highly virulent and host specific and recommended for further studies as a promising bio- control agent against barnyard weed.
Keywords: Bioherbicides, Curvularia Lunata, Echinochloa Crus-galli, Mycoherbicides.
Scope of the Article: Bio-Science and Bio-Technology