Shown here is an intimidating and odd-looking fungal growth attached to a cedar branch. It is called cedar apple rust. The airborne spores growing on the leaves and fruit of an apple tree will infect ...

After last season’s drought, I know I shouldn’t complain about rain but come on — give me a break! The earlier part of this past week has been brutal if you prefer the sun. However, we need the water ...

The leaves of my apple tree have odd spots on them. What is this and what can I do about it? Although there are other possibilities, cedar-apple rust is a possibility, given your description, the wet ...

Cedar apple rust is a fungal pathogen that gets its name from a life cycle infecting cedar trees, then plants in the Rose family and back again. This year, spring weather conditions promoted the ...

Q: The unusual orange growth in the photo is on my cedar tree. There are also a few smaller ones. What is it, and what should I do? — Dee H. A: The weird-looking growth on your evergreen is the ...

Cedar-apple rust is one of several plant diseases that are all caused by different species of a fungus called gymnosporangium. All of these diseases are referred to as gymnosporangium rust diseases.

Rust disease is among the more interesting plant diseases because it requires two different plants to complete its lifecycle. There are a variety of rust diseases, including cedar-apple rust, Asian ...