Cedar-Apple Rust

Orange sporangia --

Air-borne spores;

Cedar-apple rust.

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This orange fungus is growing on a red cedar tree, and at this time of the year the fungus releases spores from its orange sporangia (spore cases). The spores are carried by the wind. The spores that happen to land on apple trees will infect their leaves. Soon rust-colored fungal spores from the apple leaves will be released, infecting red cedar trees. That's why this is called Cedar-Apple Rust. The fungal infection alternates from red cedar trees to apple trees.

Southern KY, USA

 

Happy May Day!!!

For many people, including me, this is the first day of summer, according to ancient tradition. Some cultures call this day Beltane, but I just call it May Day!!! Happy Summer!!!

 

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