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Potential of Trichoderma harzianum for control of banana leaf fungal pathogens when applied with a food source and an organic adjuvant

Samuelian, S. (2016) Potential of Trichoderma harzianum for control of banana leaf fungal pathogens when applied with a food source and an organic adjuvant. 3 Biotech, 6 . p. 11. ISSN 2190-5738

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Article Link(s): http://dx.doi.org/10.1007/s13205-015-0327-0

Publisher URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4701706/

Abstract

Trichoderma isolates were obtained from diseased leaves and fruit collected from plantations in the main banana production area in Northern Queensland. Phylogenetic analyses identified the Trichoderma isolates as T. harzianum and T. virens. The Trichoderma spp. were found to be antagonistic against the banana leaf pathogens Mycosphaerella musicola, Cordana musae, and Deight-oniella torulosa in vitro. Several products used by the banana industry to increase production, including molasses, Fishoil and Seasol, were tested as food source for the Trichoderma isolates. The optimal food substrate was found to be molasses at a concentration of 5 %, which when used in combination with a di-1-p-menthene spreader-sticker enhanced the survivability of Trichoderma populations under natural conditions. This formulation suppressed D. torulosa development under glasshouse conditions. Furthermore, high sensitivity was observed towards the protectant fungicide Mancozeb but Biopest oil (R), a paraffinic oil, only marginally suppressed the growth of Trichoderma isolates in vitro. Thus, this protocol represents a potential to manage banana leaf pathogens as a part of an integrated disease approach.

Item Type:Article
Business groups:Biosecurity Queensland
Additional Information:Samuelian, Suren
Keywords:Native Trichoderma spp. Antagonism Biological control MYCOSPHAERELLA-FIJIENSIS BLACK SIGATOKA BOTRYTIS-CINEREA PENICILLIUM-DIGITATUM CROWN ROT BIOCONTROL SENSITIVITY FIELD FUNGICIDES CITRUS
Subjects:Plant pests and diseases
Plant pests and diseases > Individual or types of plants or trees > Bananas
Plant pests and diseases > Plant pathology
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Deposited On:12 Aug 2016 01:05
Last Modified:12 Aug 2016 01:05

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