Grapes and leaves are decaying from the heatwave ... Courtesy of REUTERS Downy mildew is a prominent fungal disease that threatens grapevines. When affected by this fungal disease, the entire ...

They're monitoring the stems, leaves and fruit of Cornell AgriTech's vineyards, rolling down each row and scanning for mildew that could threaten grape growers' crops. Phillip Lujan, plant pathologist ...

Phillip Lujan, plant pathologist and assistant professor at New Mexico State University, calls powdery mildew and downy mildew "two of the most devastating diseases found in grapes." That's ...