Powdery mildew has surfaced as a challenge for Northwest hemp growers. Powdery mildew coats the leaves of hemp plants and leads to a decline in quality. Here's what hemp growers can do if powdery mildew turns up.
Cynthia Ocamb |
Aug 2022 |
Photo A by G. Shrestha; photos B and C by C.M. Ocamb, Oregon State University. (Cropped from original)
Hemp is susceptible to fungal pathogens that induce wilt disease that can kill plants. The fungi that cause the disease can survive for years and are easily spread. But there are steps growers can take to prevent it.
Hemp plants are susceptible to disease, especially at the early stages of development. Hemp growers can promote healthy plants by using high-quality seed and avoiding soil that is wet, dense or poorly drained.
A comprehensive guide to plant disease management in the Pacific Northwest. Includes materials and tactics suitable for organic production and homeowner use as well as for commercial production. Covers testing services, common ...
This guide provides nutrient and lime recommendations for establishment of turf and forage perennial ryegrass grown for seed in western Oregon. Healthy plants with adequate root systems are required to obtain the greatest return ...