A productive alfalfa crop removes significant quantities of macronutrients and small amounts of micronutrients from the soil. A complete fertilizer program is essential to ensure a highly productive, long-lived stand.
David Hannaway, Mylen Bohle, Daniel Miles, Yitian Lin, Brianna Randow |
Sep 2019 |
Article
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.
Most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.
Learn how to identify some common insects that prey on garden pests. See what they look like at various life stages, and learn how to encourage beneficial insects in your garden or nursery. Print this pocket guide on letter-size paper and cut pages as indicated to make a booklet.
Melissa Scherr, Robin Rosetta, Lloyd Nackley |
Mar 2021 |
Extension Catalog publicationPeer reviewed (Orange level)
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.
Although grain crops bring in less revenue than vegetables or fruit, they can become an important part of a farming enterprise. Grains are less labor-intensive and can be grown when fields need a rest.
Verticillium wilt is a fungal disease that attacks plants and trees and disrupts the circulation of water and nutrients. Although it is best diagnosed by lab testing, here are some signs that gardeners can look out for.
This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.