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 ...

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 ...

Q: I love hollyhocks for their colorful, crinkled flowers, and I have a row of them planted along the edge of my patio which I grew from seed. I was disappointed last year, however, as unsightly ...

A warmer winter than usual means a higher stripe rust prediction than usual. Typically, the predicted stripe rust severity ...

Question: You recommended a fungicide for an orange rust control on plumeria. The rust fungus seems like a natural occurrence, especially as the leaves decline in the fall. I have developed the ...

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 ...

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 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 ...

The invasive plant pathogen myrtle rust has been detected near the National Museum of Australia in Canberra, concerning experts. Myrtle rust is a bright yellow-looking fungus that infects plants, like ...

The Oahu Army Natural Resources Program maintains a collection of the critically endangered nioi plant, which produces white flowers and fleshy, yellow to red berries. It’s analogous to humans’ use of ...

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 ...