Links to external web pages are followed by the source's name in parentheses.
Symptoms of dogwood anthracnose on flower bracts, caused by the fungus Discula destructiva (Photo credit: Robert L. Anderson, USDA Forest Service, Bugwood.org) (Photo credit: Robert L. Anderson, USDA Forest Service, Bugwood.org).
Disease Pest Identification
Identifying plant disease in the garden, lawn, and landscape begins by investigating the host plant and looking for clues. The following resources provide information, many through pictures, that aid in identifying the disease pest.
Garden Disease Identification
Lawn Disease Identification
Landscape (Tree and Shrub) Disease Identification
Pictures can be an important tool in helping you diagnose problems in the landscape.
Invasive Diseases (www.invasive.org) documents many of the most troublesome diseases that originated in other parts of the world
Local Diagnostic Laboratories
If you cannot identify your disease problem with the resources provided, you may be able to submit information to your state diagnostic plant laboratory using:
Fungicide Use and Products
While plant diseases may be caused by a number of organisms, such as bacteria, fungi, viruses, or phytoplasmas, only fungal plant diseases can be effectively controlled through the use of chemical pesticides. A fungal pesticide is called a fungicide. Fungicides and their use vary by state.
Fungicides for Disease Control
Fungicide Chemical Information
The fungicide label is a legal document that provides instructions for proper fungicide usage. All pesticide containers are required by law to have a pesticide label. Another important document, the material safety data sheet (MSDS), informs the user about the chemical's physical properties and safe work practices. Label and MSDS information can also be found by using the Web sites listed below. Some of these sites may require you to register free of charge before using.
Greenbook.net (Greenbook, Vance Publishing Corporation) - use the search feature to find labels and material data safety sheets for insecticides
Find State Regulatory Data for your state:
- -User hint: Under the "Our Services" tab, scroll down to find the Information Resources, then State Regulatory Data section, and select a state from the drop-down menu.
↑ is a joint project of the Bugwood Network, CSREES
Southern IPM Center and the Southern Plant Diagnostic Network
The University of Georgia - Warnell School of Forestry and Natural Resources
and College of Agricultural and Environmental Sciences - Department of Entomology
↑ Invasive.org is a joint project of the Bugwood Network, USDA Forest Service, and USDA APHIS PPQ
The University of Georgia - Warnell School of Forestry and Natural Resources and
College of Agricultural and Environmental Sciences - Department of Entomology