Evaluation of the Efficacy of Commercial Disinfectants Against Fusarium oxysporum f. sp. cubense Race 1 and Tropical Race 4 Propagules
| Autor: | Lucy Tran-Nguyen, Tuan V. Nguyen, Carole L. Wright, Peter Trevorrow, Kathy Grice |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Panama disease biology Bleach Outbreak Musa Fusarium oxysporum f.sp. cubense Plant Science biology.organism_classification 01 natural sciences Chlamydospore 010602 entomology chemistry.chemical_compound Horticulture Fusarium Propagule chemistry Sodium hypochlorite Fusarium oxysporum Food Microbiology Queensland Agronomy and Crop Science Disinfectants Plant Diseases 010606 plant biology & botany |
| Zdroj: | Plant Disease. 103:721-728 |
| ISSN: | 1943-7692 0191-2917 |
| Popis: | Panama disease caused by Fusarium oxysporum f. sp. cubense has devastated banana production worldwide. This work aimed to determine effective disinfectants against two races of F. oxysporum f. sp. cubense, race 1 and tropical race 4 (TR4), for implementation with on-farm biosecurity procedures against this disease following the outbreak of TR4 in North Queensland in 2015. A total of 32 commercial disinfectants were screened and their activity was assessed after ≤30 s, 5 min, 30 min, and 24 h of contact with an F. oxysporum f. sp. cubense suspension containing 105 chlamydospores/ml without and with soil added (0.05 g/ml). Of the disinfectants tested, the quaternary ammonium compounds containing ≥10% active ingredient were found to be the most effective against both F. oxysporum f. sp. cubense races. These products, when used at a 1:100 dilution, completely inhibited the survival of all F. oxysporum f. sp. cubense propagules across all the contact times regardless of the absence or presence of soil. The bioflavonoid product EvoTech 213 and bleach (10% sodium hypochlorite) used at a 1:10 dilution also eliminated all F. oxysporum f. sp. cubense propagules across all the contact times. None of the detergent-based or miscellaneous products tested were completely effective against both F. oxysporum f. sp. cubense races even used at a 1:10 dilution. Soil decreases the efficacy of disinfectants and therefore must be removed from contaminated items before treatments are applied. |
| Databáze: | OpenAIRE |
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