Plant hormones and growth regulators are chemicals that affect flowering, aging, root growth, distortion and killing of organs, prevention or promotion of stem elongation, color enhancement of fruit, prevention of leafing and/or leaf fall, and many other conditions.
Degree-days measure the amount of heat accumulated over time. Researchers have used years of this data to develop models that help farmers and gardeners predict harvest dates and other important events in select ...
Nick Andrews, Leonard Coop, Heather Stoven, Heidi Noordijk, Aaron Heinrich |
Jan 2021 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo: Oregon State University (Cropped from original)
Poison oak plants contain a chemical that causes a severe rash. Learn how to spot a plant, safely remove, and clean your clothes, gear and skin afterward to prevent a rash.
Silage-making has been used to reduce the concentrations of toxins in a variety of crops. But in the case of poison hemlock, the opposite is true — making silage out of it actually increases one of its toxic alkaloids.
Tansy ragwort, an invasive weed that can harm certain types of livestock, is making a comeback in western Oregon. Find out how to control it and protect your animals.
Shelby Filley, Andy Hulting, Gene Pirelli, Eric Coombs |
Aug 2011 |
Article
Q: Is there a solution I can spray on dandelions instead of pulling them up? Not Roundup.... does vinegar, dawn soap and Epson salts work? Or is there a better one?
Q: Greetings. Do you have any tips or resources on helping rid, or at least control creeping bamboo? Digging up is partially helpful here, but a water pipe located below the main plant makes it problematic. Mainly want to ...
These publications are shared to teach farmers and agriculturalists how to properly control weeds and poisonous plants and pests. Handbooks and management fact-sheets are provided as well as a list of common pasture weeds, poisonous plants, and other pests that affect pastures.
“An ounce of prevention is worth a pound of cure” (B Franklin, 1706-1790). Pest prevention is a central component of integrated pest management and organic pest management strategies. Crop rotation and crop planning (i.e. ...