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.
Weeds can lower the quality and quantity of forage in a pasture or hayfield. In general, weeds have lower protein and energy than improved, cool season perennial and annual forages under good grazing management. The palatability...
This small plant causes extensive crop loss. Is it still missing?
A guide for how to collect and where to get a sample analyzed for plant diseases.
Trees all over Oregon are displaying signs of poor health. People are quick to blame insects, but insects are rarely the underlying cause of the problem. Drought and other stressors can make trees vulnerable to pests and disease.
A codling moth goes through several stages in its life cycle. If you're trying to prevent damage to apples and other fruit, it helps to know when adults and larvae are active.
Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.
Weed scientist, Daniel A. Ball of OSU, talks about the best way to rid fields of this noxious weed.