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Soil removed over the root flare of a tree in order to slow development of Armillaria root rot.
Soil removed over the root flare of a tree in order to slow development of Armillaria root rot. Credit: A. James Downer, UCCE Ventura County
Soil removed over the root flare of a tree in order to slow development of Armillaria root rot. Credit: A. James Downer, UCCE Ventura County
