Some plants absorb excess nitrates or oxalates from the soil and store them in plant tissues. Toxicity problems can occur in animals which feed on these plants.
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.
A guide for how to collect and where to get a sample analyzed for plant diseases.
A summary of the main trunk diseases causing issues in Oregon and management methods.
Forage quality of common pasture weeds was determined through laboratory testing to compare feed value of weeds to desirable forage species and nutrient requirements for grazing livestock.