BOLO January

Month-by-month lists of common plant diseases, pests, and other problems you may encounter in North Carolina yards and gardens.

Back to BOLO list of months.

Turfgrasses


Fairy ring (all turfgrasses)

Microdochium patch (Kentucky bluegrass/bermudagrass)

Yellow patch (fescue/Kentucky bluegrass/ryegrass)

Woody Ornamentals


Multiple hosts: winter injury of evergreens, cold injury (bark splitting), secondary leaf spots, Phytophthora root rot, Armillaria root rot, wood decay fungi, sooty mold, improper planting, mistletoe, sapsucker injury

Multiple shrub species: root-knot nematodes

Azalea: Phytophthora root rot, Armillaria root rot, Phomopsis dieback

Black cherry: black knot

Black gum: felt fungus (Septobasidium)

Boxwood: Boxwood blight

Cherry-laurel: shot-hole

English Ivy: anthracnose, bacterial leaf spot

Hollies: felt fungus (Septobasidium)

Indian hawthorn: Entomosporium leaf spot

Japanese holly: Black root rot, Armillaria root rot, normal purple discoloration in cold weather

Junipers: Phytophthora root rot (except Eastern red cedar), Armillaria root rot

Leyland cypress: Phytophthora root rot, Armillaria root rot, Cypress (Seiridium) canker, Botryosphaeria canker/dieback, Passalora needle blight

Ligustrum (privet): Cercospora (Pseudocercospora) leaf spot

Magnolia, Southern: algal leaf spot

Oak: felt fungus (Septobasidium), mistletoe

Rose: rose rosette

Herbaceous Ornamentals (Perennials, Bedding Plants)


Liriope: anthracnose on leaf tips, Fusarium crown rot

Pansy/viola: frost/freeze injury, black root rot, Pythium root rot, Cercospora leaf spot

Snapdragon: Sclerotinia stem rot (white mold)

Fruits & Nuts


Blackberry: cane blightPlum: black knot

Vegetables & Herbs


Cole crops: Black rot, Sclerotinia white mold 

Arthropods Associated With Multiple Plants


Fall cankerworms (adults)

Bagworms (Thyridopteryx ephemeraeformis; bags often containing eggs)