Describes abiotic injuries caused by weather, soil, and human behavior. Provides basic information on how to understand abiotic injures, presents common examples of abiotic injury, and discusses management control practices.
To keep your lilacs looking their best, they need to be pruned, fertilized and shaped almost every year, soon after they are done blooming in the late spring.
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.
How to identify, manage, and prevent forest tree stem (trunk) decay. Also discusses ecologic roles of decay and decay fungi and economic losses from tree wounding and decay. Color photos throughout. Preview available online. Full version available to purchase.
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.
Q: I have a California lilac tree in my back yard. A thick root is underneath the pavers and lifting them up. Will I kill the tree if I cut out that root? I sure don’t want to kill it!