Southern Corn Rust
This fungus spreads from the tropical south to the colder north. Rust color pustules and origin make this common name easy to remember.
Tar Spot
This disease looks just like its common name, like a ‘tar spot’. It’s tar-black spots can appear not only on leaves but, can cover husks and leaf sheaths when severe.
Black Cutworm
What this pest lacks in numbers, it makes up for in occurrences!
True Armyworm
There are many types of Armyworms, but the True Armyworm stands out against the rest. They can also cause huge amounts of damage.
All information is current with our records. If there is not a 2024 map that means that there have been no reports of the disease or insect within the current year.
Partners
These resources are made possible through the hard work and dedication of the following institutions:
This site is the result of collaboration between many partners in the nation. For more information about collaborations supporting crop protection, see https://cropprotectionnetwork.org/. For information about this site, the reporting systems driving these maps, and the maps themselves, contact webmaster@bugwood.org