I saw these orange spots on my cedar tree a few days ago. They keep getting bigger, and I'm not sure what they are. Can anyone help me figure this out?
My cedar had similar orange spots last year, and it was cedar-apple rust (a pesky fungus that likes wet weather). I started by pruning out the infected branches, which helped a lot (just bag them up right away). Then I sprayed the tree with a copper fungicide every couple weeks in the spring. The spots finally faded and didn't come back this season.
Pruning the infected branches like @noah387 did is spot on, but bagging them right away is crucial. Copper fungicide in spring works wonders if you keep up with it every few weeks.