Fir Broom Rust

Leaf Rusts of Hardwoods and Needle Rusts of Conifers

Gymnosporangium nidus-avis

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Juniper with witches' broom.

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Telia on branches from juniper broom.

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Pycnia on top surface of Amelanchier leaves.

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Aecia on bottom of Amelanchier leaf.

Fir-Broom Rust

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Melampsorella causing a withches' broom on fir. Alternate host is chickweed (photo not shown).

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Pycnia and aecia on needles of fir from broom.