Evaluation of recycled bioplastic pellets and a sprayable formulation for application of an Aspergillus flavus biocontrol strain

Cesare Accinelli, Hamed K. Abbas, Alberto Vicari, W. Thomas Shier

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Biocontrol of Aspergillus flavus using inoculated bioplastic granules has been proven to be effective under laboratory and field conditions. In the present study, the use of low-density pellets from recycled bioplastic as a biocontrol strain carrier was evaluated. Applying recycled bioplastic pellets inoculated with biocontrol A.flavus NRRL 30797 to two soils with different levels of indigenous A.flavus, resulted in a rapid 55% and 63% decrease in percent aflatoxigenicity in A.flavus isolates from low and high population soils, respectively. The decrease was significantly more rapid using lower-density recycled bioplastic pellets than using higher-density bioplastic granules, but aflatoxin production by indigenous soil A.flavus decreased to comparable levels in two months. A sprayable bioplastic formulation prepared from inoculated recycled bioplastic pellets was effective in delivering adherent biocontrol A.flavus to corn leaves, and in promoting a 4-fold increase in recovered non-aflatoxigenic A.flavus DNA one week later.

Original languageEnglish (US)
Pages (from-to)9-15
Number of pages7
JournalCrop Protection
Volume72
DOIs
StatePublished - Jun 1 2015

Keywords

  • Aflatoxins
  • Aspergillus flavus
  • Biocontrol formulations
  • Biodegradable plastic
  • Maize (Corn, Zea mays L.)
  • Recycled bioplastic

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