Lawn & Landscape Disease Library
Browse 48 diseases that affect lawns and landscape plants in Middle Tennessee. Our identification guide helps you spot problems early so we can treat them effectively.
Powdery Mildew
Erysiphe, Podosphaera, Microsphaera, Golovinomyces, Oidium
Powdery Mildew (Erysiphe, Podosphaera, Microsphaera, Golovinomyces, Oidium) is a plant disease commonly encountered in Middle Tennessee's humid climat...
Downy Mildew
N/A
Downy Mildew is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up ...
Cercospora Leaf Spot
N/A
Cercospora Leaf Spot is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants...
Phyllosticta
N/A
Phyllosticta is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up ...
Septoria
N/A
Septoria is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up to 1...
Anthracnose
Discula destructiva, Colletotrichum
Anthracnose (Discula destructiva, Colletotrichum) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditi...
Southern Blight
Athelia rolfsii
Southern Blight (Athelia rolfsii) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew k...
Phytophthora
N/A
Phytophthora is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up ...
Pythium
N/A
Pythium is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up to 12...
Phytopythium vexans
N/A
Phytopythium vexans is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants ...
Armillaria Root Rot
N/A
Armillaria Root Rot is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants ...
Annosum Root Rot
Heterobasidion
Annosum Root Rot (Heterobasidion) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew k...
Botryosphaeria
N/A
Botryosphaeria is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet u...
Phomopsis
Diaporthe
Phomopsis (Diaporthe) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plant...
Hypoxylon Canker
N/A
Hypoxylon Canker is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet...
Seiridium Canker
N/A
Seiridium Canker is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet...
Vascular Streak Dieback
Ceratobasidium sp.
Vascular Streak Dieback (Ceratobasidium sp.) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions —...
Dutch Elm Disease
Ophiostoma ulmi, O. novo-ulmi
Dutch Elm Disease (Ophiostoma ulmi, O. novo-ulmi) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditi...
Verticillium Wilt
Verticillium albo-atrum, V. dahliae
Verticillium Wilt (Verticillium albo-atrum, V. dahliae) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical c...
Thousand Cankers Disease
Geosmithia morbida
Thousand Cankers Disease (Geosmithia morbida) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions ...
Laurel Wilt
Raffaelea lauricola
Laurel Wilt (Raffaelea lauricola) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew k...
Sudden Oak Death
Phytophthora ramorum
Sudden Oak Death (Phytophthora ramorum) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with...
Fire Blight
Erwinia amylovora
Fire Blight (Erwinia amylovora) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew kee...
Crown Gall
Agrobacterium tumefaciens
Crown Gall (Agrobacterium tumefaciens) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with ...
Bacterial Leaf Scorch
Xylella fastidiosa
Bacterial Leaf Scorch (Xylella fastidiosa) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — w...
Pseudomonas Syringae
N/A
Pseudomonas Syringae is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants...
Rose Rosette Virus
N/A
Rose Rosette Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants w...
Rose Mosaic Virus
N/A
Rose Mosaic Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants we...
Hosta Virus X
N/A
Hosta Virus X is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up...
Tomato Spotted Wilt Virus
N/A
Tomato Spotted Wilt Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping p...
Impatiens Necrotic Spot Virus
N/A
Impatiens Necrotic Spot Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keepi...
Cucumber Mosaic Virus
N/A
Cucumber Mosaic Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plant...
Tomato Ringspot Virus
N/A
Tomato Ringspot Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plant...
Tomato Brown Rugose Fruit Virus
N/A
Tomato Brown Rugose Fruit Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew kee...
Phytoplasmas
N/A
Phytoplasmas is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up ...
Brown Patch
Rhizoctonia solani
Brown patch (Rhizoctonia solani) is the single most destructive fungal disease of fescue lawns in Middle Tennessee, and it is not a question of if you...
Dollar Spot
Sclerotinia homoeocarpa
Dollar spot (Sclerotinia homoeocarpa) is the second most common fungal disease of fescue lawns in Middle Tennessee, and it very often appears alongsid...
Gray Leaf Spot
Pyricularia grisea
Gray leaf spot (Pyricularia grisea) is an emerging threat to Middle Tennessee fescue lawns that has gotten noticeably worse over the past two to three...
Pythium Blight
Pythium aphanidermatum
Pythium blight (Pythium aphanidermatum) is by far the worst disease that can hit a fescue lawn in Middle Tennessee. If you get it, your lawn is effect...
Spring Dead Spot
Ophiosphaerella korrae
Spring dead spot is a disease of warm-season grasses — primarily Bermuda grass — that shows up as circular dead patches when the lawn greens up in spr...
Red Thread
Laetisaria fuciformis
Red thread (Laetisaria fuciformis) looks really cool in the morning dew — the red and pink thread-like strands extending from leaf blade tips are genu...
Rust
Puccinia spp.
Rust (Puccinia spp.) produces the distinctive orange powder on grass blades that rubs off on shoes, mower decks, and pets. It is visible in Middle Ten...
leaf spot
Bipolaris sorokiniana
leaf spot (Bipolaris sorokiniana) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew k...
Fairy Ring
Marasmius oreades
Fairy ring is a soil-borne fungal condition that produces the distinctive dark green circles or arcs — sometimes with mushrooms — that appear in lawns...
slime mold
Physarum polycephalum
slime mold (Physarum polycephalum) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew ...
Take-All Root Rot
Gaeumannomyces graminis
Take-all root rot (Gaeumannomyces graminis) is not a significant disease of tall fescue in Middle Tennessee. It is studied in certification and licens...
Necrotic Ring Spot
Ophiosphaerella noltei
Necrotic ring spot has never been field-identified on fescue in our Middle Tennessee service area. It is primarily a disease of Kentucky bluegrass in ...
Summer Patch
Magnaporthe poae
Summer patch (Magnaporthe poae) is primarily a disease of Zoysia and Bermuda grass — not tall fescue. In Middle Tennessee, it is not a significant con...
Why Disease Identification Matters
Lawn diseases like brown patch, dollar spot, and pythium blight can turn a lush green lawn into a patchy mess almost overnight. In Middle Tennessee's humid climate, fungal diseases thrive during our hot summers and cool, wet springs.
Accurate identification is critical because different diseases require different treatments. What works for brown patch may actually make dollar spot worse. Our disease library helps you recognize the symptoms so we can apply the right fungicide at the right time.
As lawn care and treatment specialists serving Columbia, Thompson's Station, Spring Hill, and surrounding areas, we diagnose and treat these diseases every season. Let us help you keep your lawn healthy and disease-free.
Ready for a Healthier Lawn?
Get a free, no-obligation quote from our UT Certified lawn care specialists. We serve the entire I-65 corridor from Pulaski to Belle Meade.