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Funded Project |
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Funding Program:
IPM Partnership Grants |
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Project Title:
Inadequate Control of Trichoderma Green Mold on Mushrooms |
Project Directors (PDs):
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Lead State: PA Lead Organization: Pennsylvania State University |
| Undesignated Funding: $23,000 |
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Start Date: May-01-2005 End Date: Apr-30-2006 |
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Pests Involved: trichoderma green mold, fungus, fungi |
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Site/Commodity: mushrooms |
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Area of Emphasis: cultural controls |
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Summary:
We provide suggestive evidence that the recurrence of Trichoderma green mold on cultivated mushrooms, a disease that reached epidemic proportion in the 1990s in the northeastern U.S., is due to the emergence of formidable resistance in the pathogen to the only fungicide available for disease management. We also present data that proposes a direct relationship between disease incidence and on-farm sources of pathogen contamination. Our project findings were published in the major mushroom industry trade journal and presented in a series of grower meetings in which farm hygiene was emphasized as the first and foremost defense in an IPM program for green mold disease. With a reduced fungicide efficacy, farm hygiene now forms the principal tactic for disease control for the mushroom industry in the Northeast.
Objectives: 1. Survey the Ta2 population on mushroom operations for sensitivity to thiophanate-methyl. 2. Determine if cases of high disease incidence are related to improper application of the fungicide to the spawn. 3. Survey commercial mushroom operations with high rates of green mold for widespread on-site sources of infection. 4. Work with growers to emphasize sanitation as the primary method for disease management. Final Report 2006 |
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