Disease Problems to Watch for in September
Disease Problems to Watch for in September
Here are some diseases we observed in the Clinic during the month of September. The hypertext links will lead you to specific information about a certain disease or about diseases in a certain crop.
Field Crops
| Peanut | Cylindrocladium black rot, Rhizoctonia root rot, Southern blight, Tomato spotted wilt virus |
| Soybean | Cyst nematodes, Frogeye leaf spot, Phytophthora root rot, Red Crown rot |
| Tobacco | Brown spot |
Turfgrasses
(TurfFiles
Publications)
Woody Ornamentals
| St. Augustinegrass | Gray leaf spot |
Woody Ornamentals
| General | Anthracnose diseases, Bacterial scorch (Sycamore, Pin Oak), Phytophthora root rot, Secondary leaf spots |
| Azalea | Web blight |
| Cherry, Ornamental | Bacterial leaf spot |
| Cypress, Leyland | Botryosphaeria canker, Cypress canker |
| Dogwood | Heat stress, Powdery mildew |
| Holly, Japanese | Black root rot, Web blight |
| Rhododendron | Botryosphaeria dieback |
Herbaceous
Ornamentals (perennials, bedding plants)
| General | Anthracnose diseases, Late season leaf spots (Alternaria), Phytophthora diseases, Rhizoctonia root/stem rot, Root-knot nematodes, Southern blight |
| Bluebeard | Phytophthora root rot, Rhizoctonia root/stem rot |
| Pansy | Black root rot, Cercospora leaf spot |
Interior
Plants
| General | Pythium root rot; Rhizoctonia diseases (root/stem rot, web blight) |
| Chrysanthemum | Fusarium stem rot, Bacterial blight/leafspot |
| Poinsettia | Bacterial soft rot, Nutritional problem |
Fruits/Nuts
| Apple | Bitter rot, White rot, Sooty blotch |
| Grape, Muscadine | Bitter rot, Macrophoma rot, Angular leaf spot, Black rot |
| Pecan | Scab, Powdery mildew |
| Strawberry | Anthracnose, Phomopsis leaf blight |
Vegetables/Herbs
| Bean, Lima | Anthracnose |
| Cabbage | Wirestem |
| Cucurbits | Anthracnose, Bacterial wilt, Downy mildew, Gummy stem blight, Various viruses |
| Pepper | Bacterial spot |
| Pumpkin | Fusarium fruit rot, Phytophthora fruit rot |
| Sweetpotato | Fusarium surface rot, False scurf, Scurf |
| Tomato | Bacterial spot, Early blight |
| Turnip | White spot |
Other Links
NCSU Plant Clinic summaries
Plant Disease Information Notes
Plant Disease and Insect Clinic Homepage
Last modified November 2000