more... > Plant Diagnostic Center > Fact Sheets > Turf > Louisiana Plant Pathology: Gray Leaf Spot of Turfgrasses [Image: gray leaf spot] Gray leaf spot occurs on a wide range of turfgrasses throughout the United States. In Louisiana, it is most commonly seen on St. Augustine grass but occasionally can be a problem for Bermuda grass or centipede grass as well. This publication describes how to identify and manage this disease. (PDF Format Only) Louisiana Plant Pathology: Large Patch of Warm-season Turfgrasses [Image: brown patch] Large patch (formerly called brown patch) is the most common disease of warm-season turfgrasses in Louisiana. This article describes the disease and how to manage it. (PDF Format Only) Fungicides for Louisiana Turf [Image: Photo of Brown Patch] A variety of diseases affect both the quality and performance of turfgrasses in Louisiana. This publication provides information on fungicides registered for use on turfgrass in Louisiana.