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Daily News Blog

Archive for the 'Powdery Mildew' Category


17
Mar

Researchers Find Nontoxic Method Kills a Problematic Fungus When It Least Expects It

(Beyond Pesticides, March 17, 2021) Ultraviolet radiation (UV-C) applied at night can successfully kill powdery mildew in farm fields, providing a potential route to significantly reduce the use of toxic fungicides, new research published in the journal Plant Disease finds. “UV treatments applied once or twice weekly were as effective as the best available fungicides applied on similar schedules for control of strawberry powdery mildew,” study author Natalia Peres, PhD, of the University of Florida said. “It’s not a one-time fluke.” The results are encouraging, and have the potential of reducing fungal pressure through non-toxic means, but like all pest management tools should be used as part of a system the focuses first and foremost on fostering healthy soils and biodiversity.  Powdery mildew is a fungal pathogen that can infect a range of plants, from cucurbits to grapes, apples, onions, and cannabis. For the study, the primarily Florida-based researchers focused on the state’s $300 million strawberry industry. Powdery mildew is often facilitated by high humidity, and can be exacerbated when crops are grown in tunnels or other enclosed areas due to lack of airflow and poor ventilation. The fungus presents as a white powder on the surface of plant leaves, […]

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