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.
Browning or dieback is usually caused by weather-related stress, sometimes in combination with pests and diseases.
Information about garden planning, maintenance and clean up, pest monitoring and management, houseplants, and indoor gardening for the month of October.
This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.
Information about garden planning, maintenance, cleanup, pest management, houseplants and indoor gardening for the month of November.