Illustrated is the base of a young white pine tree attacked by <I>Armillaria mellea</I>. The mushroom <I>Armillaria mellea</I> can become parasitic, killing trees over large areas.

White Pine Tree Attacked by Armillaria Mellea

Illustrated is the base of a young white pine tree attacked by Armillaria mellea. The mushroom Armillaria…

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, <I>Cronartium ribicola</I>. Illustrated is the fruiting stage in the process of rupturing the bark.

White Pine Tree Stem with Fungus

Pictured is the stem of a white pine tree attacked by the white pine blister-rust fungus, Cronartium…