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Aflatoxin control in preharvest maize: effects of chitosan and two microbial agents

Published online by Cambridge University Press:  27 March 2009

R. G. Cuero ,
E. Duffus ,
G. Osuji  and
R. Pettit
R. G. Cuero
Affiliation:
Prairie View A & M University, Texas A & M University System, Cooperative Agriculture Research Center, Prairie View, Texas, USA
E. Duffus
Affiliation:
Prairie View A & M University, Texas A & M University System, Cooperative Agriculture Research Center, Prairie View, Texas, USA
G. Osuji
Affiliation:
Prairie View A & M University, Texas A & M University System, Cooperative Agriculture Research Center, Prairie View, Texas, USA
R. Pettit
Affiliation:
Texas A & M University, College Station, Texas, USA
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Summary

Growth and aflatoxin production of Aspergillus flavus in preharvest maize grown in Texas, USA in 1989 were determined after treatment with chitosan, Bacillus subtilis and Trichoderma harzianum. Individual or combined control treatments were applied at the milk stage of ear development, 48 h before or after kernel inoculation with an aflatoxigenic isolate of A. flavus. Single and combined treatments reduced A. flavus growth and aflatoxin production. Toxin accumulation was significantly (P < 0·05) reduced, in some instances to non-detectable concentrations by single pretreatments. Either B. subtilis or chitosan as independent treatments applied 48 h before inoculation with A. flavus inhibited aflatoxin production.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 117 , Issue 2 , October 1991 , pp. 165 - 169
Copyright
Copyright © Cambridge University Press 1991

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