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PATHOGENICITY OF FUSARIUM OXYSPORUM AND CURVULARIA LUNATA AS A MYCOHERBICIDE FOR THE CONTROL OF ECHINOCHLOA CRUSGALLI (BARNYARD GRASS)
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ABSTRACT Echinochloa crusgalli (Barnyard grass) is one of the most invasive paddy (Oryza sativa L.) weed. Pure culture isolates of several fungi including Fusarium oxysporum (SBT # 17) and Curvularia lunata (SBT # 30) obtained from field sites were tested as candidates for the microbial control of barnyard grass. A survey was conducted in the paddy fields of eight southern districts of Andhra Pradesh to document the fungal pathogens of barnyard grass. Pure cultures were isolated from the naturally-infected barnyard grass leaves collected from different paddy - growing areas. A total of 51 fungi were isolated and two isolates were pathogenic on E.crusgalli under laboratory condition (> 70%). Furthermore F.oxysporum (SBT # 17) and C. lunata (SBT # 30) exhibited more pathogenicity under green house conditions on E. crusgalli and holds a great promise as biocontrol agents of barnyard grass.
Title: PATHOGENICITY OF FUSARIUM OXYSPORUM AND CURVULARIA LUNATA AS A MYCOHERBICIDE FOR THE CONTROL OF ECHINOCHLOA CRUSGALLI (BARNYARD GRASS)
Description:
ABSTRACT Echinochloa crusgalli (Barnyard grass) is one of the most invasive paddy (Oryza sativa L.
) weed.
Pure culture isolates of several fungi including Fusarium oxysporum (SBT # 17) and Curvularia lunata (SBT # 30) obtained from field sites were tested as candidates for the microbial control of barnyard grass.
A survey was conducted in the paddy fields of eight southern districts of Andhra Pradesh to document the fungal pathogens of barnyard grass.
Pure cultures were isolated from the naturally-infected barnyard grass leaves collected from different paddy - growing areas.
A total of 51 fungi were isolated and two isolates were pathogenic on E.
crusgalli under laboratory condition (> 70%).
Furthermore F.
oxysporum (SBT # 17) and C.
lunata (SBT # 30) exhibited more pathogenicity under green house conditions on E.
crusgalli and holds a great promise as biocontrol agents of barnyard grass.
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