Two scab diseases routinely affect citrus in Louisiana. Citrus scab (also called common citrus scab or sour orange scab) has been present in the state for many years. In contrast, sweet orange scab was identified in Louisiana and Texas for the first time during the summer of 2010. This publication describes how to identify and manage these diseases. (PDF Format Only)

Blast is the most important disease of rice worldwide and the second most important in Louisiana. Yield losses as high as 75 to 90 percent have been observed in Louisiana due to this disease. Use this fact sheet to help you identify and manage rice blast. (PDF Format Only)

Sheath blight has been the most economically significant disease of rice in Louisiana since the early 1970s. The disease is caused by a fungal pathogen of both rice and soybeans. This fact sheet describes the symptoms of the disease and gives suggested management procedures.

This guide for 2010 contains suggestions for management of the most important or more prevalent diseases of Louisiana plants. It includes information on fungicides, bactericides and nematicides, as well as safety precautions for using them.

Sclerotium rolfsii is a soilborne fungus that causes southern blight on a wide variety of plants. Proper identification is the key to successful disease management. This fact sheet is intended to aid in the identification and management of Sclerotial Blight and Circular Spot. (PDF Format Only)