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: Cold injury (bark splitting), winter injury of evergreens, Phytophthora root rot, Armillaria root rot, Botryosphaeria canker/dieback, improper planting, sooty mold, sapsucker injury
Multiple shrub species: root-knot nematodes
Arborvitae: Phytophthora root rot, Armillaria root rot
Azalea: Phytophthora root rot, Armillaria root rot, Phomopsis dieback
Black cherry: black knot
Black gum: felt fungus (Septobasidium)
Boxwood: Phytophthora root rot, lesion nematodes
Camellia: camellia petal blight, ring spot & flower break
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
Junipers: Phytophthora root rot (except Eastern red cedar), Armillaria root rot, normal purple discoloration in cold weather
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)
Rose: Armillaria root rot, common canker, rose rosette
Herbaceous Ornamentals (Perennials, Bedding Plants)
Liriope: anthracnose on leaf tips, Fusarium crown rot
Pachysandra: Volutella blight
Pansy/viola: frost/freeze injury, nutrient deficiency, Botrytis blight, black root rot, Pythium root rot, Cercospora leaf spotFruits & Nuts
Blackberry: cane blightPlum: black knot
Vegetables & Herbs
Cole crops: downy mildew, Sclerotinia white mold
Arthropods Associated with Multiple Plants
Fall cankerworms (adults)
Bagworms (Thyridopteryx ephemeraeformis; bags often containing eggs)
