A species of bacterium common in soil and water called "Burkholderia cepacia" (B. cepacia) is being championed by agricultural scientists as a non-chemical means of fighting plant infections.
There are probably few plants that are more strongly identified with this area or are held in greater affection than the madrone tree.
This root rot look-alike is endangering wheat, grass, and barley. Learn the signs, symptoms, and controls of this disease.
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.