Validation of the Strawberry Advisory System in the Mid-Atlantic Region

Anthracnose fruit rot (AFR) and Botrytis fruit rot (BFR) are primary diseases affecting strawberry (Fragaria × ananassa), which typically drive fungicide applications throughout the growing season. The Strawberry Advisory System (StAS), a disease forecasting tool, was originally developed in Florida...

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Veröffentlicht in:Plant disease. - 1997. - 105(2021), 9 vom: 20. Sept., Seite 2670-2679
1. Verfasser: Hu, Mengjun (VerfasserIn)
Weitere Verfasser: Cosseboom, Scott D, Schoeneberg, Anita, Johnson, Charles S, Peres, Natalia A, Lea-Cox, John
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article disease management fungicide application infection model microclimate strawberry Fungicides, Industrial
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520 |a Anthracnose fruit rot (AFR) and Botrytis fruit rot (BFR) are primary diseases affecting strawberry (Fragaria × ananassa), which typically drive fungicide applications throughout the growing season. The Strawberry Advisory System (StAS), a disease forecasting tool, was originally developed in Florida to better time the fungicide sprays by monitoring AFR and BFR infection risk based on leaf wetness and temperature input in real-time. Thirteen field trials were conducted in Maryland and Virginia between 2017 and 2019 to evaluate the StAS performance in the Mid-Atlantic region. As a result, 55, 18, and 31% fewer sprays were recorded on average in the model-based StAS treatment compared with the grower standard treatment in 2017, 2018, and 2019, respectively. Marketable yield, as well as AFR and BFR incidence, were largely comparable between the two treatments. However, poor disease control occurred during the StAS treatment in four trials in 2017, presumably because of a missed fungicide spray during a high-risk infection event and attributable to heavy rainfall that led to impassable fields. The implementation of the StAS may be further challenged by the employment of floating row covers that are essential for growing strawberries in plasticulture systems in open fields in the Mid-Atlantic region. Preliminary results indicated that row covers can alter canopy-level microclimatic conditions, possibly increasing the risk for disease occurrence. Overall, the StAS can be a valuable tool for Mid-Atlantic growers to control AFR and BFR, but sprays may need to be promptly applied when consecutive or heavy rainfalls are predicted, especially for highly susceptible cultivars. Complications in disease forecasting and management arising from the use of row covers need to be further addressed in this region because of its highly diverse climate 
650 4 |a Journal Article 
650 4 |a disease management 
650 4 |a fungicide application 
650 4 |a infection model 
650 4 |a microclimate 
650 4 |a strawberry 
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700 1 |a Cosseboom, Scott D  |e verfasserin  |4 aut 
700 1 |a Schoeneberg, Anita  |e verfasserin  |4 aut 
700 1 |a Johnson, Charles S  |e verfasserin  |4 aut 
700 1 |a Peres, Natalia A  |e verfasserin  |4 aut 
700 1 |a Lea-Cox, John  |e verfasserin  |4 aut 
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