Plant Problems to Watch for in November

Here are some diseases observed in the clinic during the month of November. The hypertext links will lead you to specific information about a certain disease or about diseases in a certain crop.

Field Crops
Soybean: Anthracnose, Phytophthora root rot
Pod and stem blight, Red crown rot
Turfgrass
Bentgrass: Pythium diseases

Centipedegrass: Brown patch
Vegatables/Herbs
Crucifers: Black spot (Alternaria), Downy mildew; Black rot (Xanthomonas), Cercospora leaf spot, White rust (Albugo)

Sweetpotato: Fusarium surface rot, Growth cracks, Root-knot nematodes, Scurf
Fruits/Nuts
Strawberry: Anthracnose, Black root rot complex, Common leaf spot, Phomopsis leaf blight, Powdery mildew

Pecan: Scab
Interior Plants
GLoxinia: Impatiens necrotic spot

Poinsettia: Botrytis blight, nutritional problem, Powdery mildew, Pythium root rot, Rhizoctonia root/stem rot
Herbaceous Ornamentals
General on several hosts: Pythium root rot, Rhizoctonia root/stem rot

Pansy: Black root rot, Botrytis blight, Cercospora leaf spot, Fertilizer injury,
Phytophthora root/stem rot, Rhizoctonia root/stem rot, Septoria leaf spot

Foliar nematodes on: Ferns, Lantana, Lily, Salvia, Toad lily, Verbena 		  Woody Ornamentals
Azalea: Phytophthora root rot

Boxwood: Lesion nematode (nematode information for the nursery and landscape), Phytophthora root rot

Leyland Cypress: Botryosphaeria dieback, Cypress canker (Seiridium), Phytophthora root rot

Holly, Japanese: Black root rot, Nematodes (Dagger, Ring, Root-knot)

Juniper: Phytophthora root rot

Pine, Japanese Black: Pine wood nematodes

Pine, Loblolly: Insect problems.

Rhododendron: Botryosphaeria dieback, Nematodes (Root-knot and stunt), Phytophthora root rot

Spruce, Blue: Rhizosphaera needle cast

General on several hosts: Botryosphaeria or stress related diebacks, leaf spots on older senescent leaves, Mushroom root rot

Move to:
Clinic Summaries
Plant Disease Information Notes
Plant Disease and Insect Clinic
Last modified on November 2000