Leaf Rusts

Leaf Rusts of Hardwoods and Needle Rusts of Conifers

Melampsora medusa

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Uredinia on bottom of leaf.

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Uredinia sori on leaf viewed with a hand lens.

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Telia on bottom of leaf.

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Telia on leaf as viewed with a hand lens.


Red Pine Needle Rust -Coleosporium asterum

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Aecia on red pine needle (pycnia was present a few weeks eariler).

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Uredinia and telia on golden rod leaves. Another alternate host is aster.