Parasitic Algae of the Air: Downy Mildews

The natural world is comprised of organisms large and small. And the smallest ones are typically the most deadly.

In this webinar, learn how downy mildews present a constant threat to the plants we love. They can travel thousands of miles in a single season. The webinar is presented by the Natural History Society of Maryland.

Speaker: Nina Shishkoff, PhD, USDA

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