This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.
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.
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.
Mechanical and physical controls are among the most fascinating components of an integrated pest management program. This arsenal involves numerous physical barriers, traps, nets and other mechanical devices.
In integrated pest management, biological controls might include predatory or parasitic insects, bacteria or fungi, and biopesticides. More and more biocontrol methods are becoming available to the home gardener.