First Report of the Production of Mycotoxins and Other Secondary Metabolites by (Tassi) Goid. Isolates from Soybeans ( L.) Symptomatic with Charcoal Rot Disease.

(Tassi) Goid., the causal agent of charcoal rot disease of soybean, is capable of causing disease in more than 500 other commercially important plants. This fungus produces several secondary metabolites in culture, including (-)-botryodiplodin, phaseolinone and mellein.

Curvularia malina sp. nov. incites a new disease of warm-season turfgrasses in the southeastern United States.

A novel species of Curvularia was identified as a foliar pathogen of Cynodon dactylon (bermudagrass) and Zoysia matrella (zoysiagrass), two important warm-season turfgrasses in the southeastern United States. Field symptoms were conspicuous chocolate brown to black spots in turf of both species on golf course putting greens and fairways. Leaves of plants within these spots exhibited prominent, black eyespot lesions from which a darkly pigmented fungus was consistently isolated.

First Report of Bipolaris oryzae Causing Leaf Spot of Switchgrass in Mississippi.

'Alamo' switchgrass (Panicum virgatum L.) seedlings growing in a soilless mix exhibiting dark brown, irregular-shaped foliar lesions with black borders were submitted to the Mississippi State University Plant Disease Diagnostic Laboratory in the summer of 2009 from a local forest products company. Symptomatic tissues were plated onto water agar (WA) and incubated for 21 days on a laboratory bench top with a 12-h photoperiod at 22°C.

First Report of Ophiosphaerella herpotricha Causing Spring Dead Spot of Bermudagrass in Mississippi.

Spring dead spot (SDS) is the most destructive disease of bermudagrass (Cynodon dactylon (L.) Pers.).

Gaeumannomyces graminis var. graminis Isolated from Emerald Zoysiagrass in Texas.

Wilkinson and Kane (3) previously reported diseased zoysiagrass infected by Gaeumannomyces graminis (Sacc.) Arx & Olivier var. graminis in the spring in Illinois.

Take-All Root Rot of St. Augustinegrass: First Report in Mississippi.

Take-all root rot has been reported as a destructive disease of St. Augustinegrass home lawns in Florida and Alabama (1). In June 1998 and 1999, St.