Diseases Diagnosed in August 2012
Bacterial Diseases on Beans
There are three different bacterial diseases in snap beans; 1.) brown spot, 2.) common blight and 3.) halo blight.
- Pseudomonas syringae pv. syringae
- Xanthomonas campestris pv. phaseoli
- Pseudomonas syringae pv phaseolicola
Photo(s): Bacterial infection on beans, X. Campestris taken by Claudia Nischwitz, Utah State University.
Situation: On green bean plant
Botryosphaeria Canker and Dieback of Trees
Scientific Name: Botryosphaeria
Photo(s): Tree taken by J.W. Travis, West Virginia, University; Pear taken by Mary Ann Hansen, Virginia Polytechnic Institute & State University
Situation: Pear Tree
Fact Sheets: Virgina Tech
Fusarium Stalk Rot
Scientific Name: Fusarium moniliforme
Photo(s): Fusarium Stalk Rot in corn taken by Alison Robertson, Iowa State University.
Situation: in corn
Fact Sheets: Iowa State University
Necrotic Ring Spot
Scientific Name: Ophiosphaerlla korrae
Photo(s): Necrotic ring spot, Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org.
County: Salt Lake County
Scientific Name: Magnaporthe poae
Photo(s): Summer patch in bluegrass, Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org
Situation: On turf
County: Carbon, Wasatch, Salt Lake
Tomato Spotted Leaf Virus
Scientific Name: Varies - transported by thrips
Photo(s): TSLV in a tomato taken by Claudia Nischwitz, Utah State University.
Scientific Name: Streptomyces scabies
Photo(s): Potato Scab taken by Claudia Nischwitz, Utah State University
Fact Sheets: Cornell University
Watermelon Mosaic Virus
Pathogen: Watermelon Mosaic Virus
Photo(s): Texas A&M Universary
Situation: Squash, Pumpkin, Gourds
Abiotic, Unknown cause and non-disease stressors in August
- Blossom End Rot
Problem: Lack of Calcium
Situation: Goji Berry
- Chemical (Peach - Utah)
Problem: Sprayed with chemical at wrong time of season
Photo/s: Cracked and leathery skins taken by Claudia Nischwitz, Utah State University.
Situation:Skins cracked and leathery
- Chokecherry Problem (Utah)
- Competition (Turf - Salt Lake)
- Forsythia Problem (San Juan)
- Witches Broom (tree)
Problem: unknown cause
Photo/s: Horse Chestnut with witches broom taken by Jim Hubbell.
Situation: Horse Chestnut