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BOLO January

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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.


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

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

Japanese holly: Black root rot, Armillaria root rot

Magnolia, Southern: algal leaf spot

Oak: felt fungus (Septobasidium), mistletoe

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 blight

Plum: 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)

Written By

Mike Munster, N.C. Cooperative ExtensionMike MunsterPlant Disease Diagnostician for Commercial Ornamentals Call Mike Email Mike Entomology & Plant Pathology
NC State Extension, NC State University
Page Last Updated: 9 months ago
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