Question. All of a sudden, our plumeria has developed yellow leaves with an orange coating on their backsides. What should I do to control the decline? Answer. Many of our favorite flowering plants ...

What happens when you combine mild weather, rain that lasts for a day or two, and rapidly growing plants fighting for space? Besides a bounty of flowers, foliage might take on an orange-splattered ...

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 ...

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 ...

Q: Some of my snapdragons are covered with dark spots and it seems to be spreading to neighboring plants. What can I do to stop this problem? A: From examining your plant sample, the problem is a ...

Rust appears on perennial ryegrass leaves in August. Show more Show less Rust appears on perennial ryegrass leaves in August. Orange dust clinging to equipment tires or shoes after passing through a ...

AMES, Iowa – Iowa State University scientists are piecing together clues about how a global pest hacks the immune systems of soybeans. Soybean rust fungus poses one of the biggest threats to soybean ...