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.
🌱 Turf Diseases
Fungal and bacterial diseases that attack fescue, bermuda, zoysia, and other lawn grasses in Middle Tennessee. 13 entries.
Pythium
Pythium
<p>Pythium is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up to...
Brown Patch
Rhizoctonia solani
<p>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 ...
Dollar Spot
Sclerotinia homoeocarpa
<p>Dollar spot (Sclerotinia homoeocarpa) is the second most common fungal disease of fescue lawns in Middle Tennessee, and it very often appears along...
Gray Leaf Spot
Pyricularia grisea
<p>Gray leaf spot (Pyricularia grisea) is an emerging threat to Middle Tennessee fescue lawns that has gotten noticeably worse over the past two to th...
Pythium Blight
Pythium aphanidermatum
<p>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 eff...
Spring Dead Spot
Ophiosphaerella korrae
<p>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 ...
Red Thread
Laetisaria fuciformis
<p>Red thread (Laetisaria fuciformis) looks really cool in the morning dew — the red and pink thread-like strands extending from leaf blade tips are g...
Rust
Puccinia spp.
<p>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 ...
Fairy Ring
Marasmius oreades
<p>Fairy ring is a soil-borne fungal condition that produces the distinctive dark green circles or arcs — sometimes with mushrooms — that appear in la...
slime mold
Physarum polycephalum
<p>Slime mold isn’t a turf disease in the traditional sense, and it’s certainly not something that’s going to kill your lawn. In Middle Tennessee, we ...
Take-All Root Rot
Gaeumannomyces graminis
<p>Take-all root rot (Gaeumannomyces graminis) is not a significant disease of tall fescue in Middle Tennessee. It is studied in certification and lic...
Necrotic Ring Spot
Ophiosphaerella noltei
<p>Necrotic ring spot has never been field-identified on fescue in our Middle Tennessee service area. It is primarily a disease of Kentucky bluegrass ...
Summer Patch
Magnaporthe poae
<p>Summer patch (Magnaporthe poae) is primarily a disease of Zoysia and Bermuda grass — not tall fescue. In Middle Tennessee, it is not a significant ...
🌳 Tree & Shrub Diseases
Fungal, bacterial, and viral diseases affecting ornamental trees, shrubs, and landscape plants in Middle Tennessee. 35 entries.
Powdery Mildew
Erysiphe, Podosphaera, Microsphaera, Golovinomyces, Oidium
<p>Powdery Mildew (Erysiphe, Podosphaera, Microsphaera, Golovinomyces, Oidium) is a plant disease commonly encountered in Middle Tennessee's humid cli...
Downy Mildew
N/A
<p>Downy Mildew is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet ...
Cercospora Leaf Spot
N/A
<p>Cercospora Leaf Spot is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping pla...
Phyllosticta
N/A
<p>Phyllosticta is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet ...
Septoria
N/A
<p>Septoria is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet up t...
Anthracnose
Discula destructiva, Colletotrichum
<p>Anthracnose (Discula destructiva, Colletotrichum) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical cond...
Southern Blight
Athelia rolfsii
<p>Southern Blight (Athelia rolfsii) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with de...
Phytophthora
N/A
<p>Phytophthora is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet ...
Phytopythium vexans
Phytopythium vexans
<p>Phytopythium vexans is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plan...
Armillaria Root Rot
N/A
<p>Armillaria Root Rot is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plan...
Annosum Root Rot
Heterobasidion
<p>Annosum Root Rot (Heterobasidion) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with de...
Botryosphaeria
N/A
<p>Botryosphaeria is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants we...
Phomopsis
Diaporthe
<p>Phomopsis (Diaporthe) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping pl...
Hypoxylon Canker
Biscogniauxia atropunctata
<p>Hypoxylon Canker is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants ...
Seiridium Canker
N/A
<p>Seiridium Canker is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants ...
Vascular Streak Dieback
Ceratobasidium sp.
<p>Vascular Streak Dieback (Ceratobasidium sp.) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical condition...
Dutch Elm Disease
Ophiostoma ulmi, O. novo-ulmi
<p>Dutch Elm Disease (Ophiostoma ulmi, O. novo-ulmi) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical cond...
Verticillium Wilt
Verticillium albo-atrum, V. dahliae
<p>Verticillium Wilt (Verticillium albo-atrum, V. dahliae) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropica...
Thousand Cankers Disease
Geosmithia morbida
<p>Thousand Cankers Disease (Geosmithia morbida) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditio...
Laurel Wilt
Raffaelea lauricola
<p>Laurel Wilt (Raffaelea lauricola) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with de...
Sudden Oak Death
Phytophthora ramorum
<p>Sudden Oak Death (Phytophthora ramorum) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — w...
Fire Blight
Erwinia amylovora
<p>Fire Blight (Erwinia amylovora) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew ...
Crown Gall
Agrobacterium tumefaciens
<p>Crown Gall (Agrobacterium tumefaciens) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — wi...
Bacterial Leaf Scorch
Xylella fastidiosa
<p>Bacterial Leaf Scorch (Xylella fastidiosa) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions ...
Pseudomonas Syringae
N/A
<p>Pseudomonas Syringae is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping pla...
Rose Rosette Virus
N/A
<p>Rose Rosette Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plant...
Rose Mosaic Virus
N/A
<p>Rose Mosaic Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants...
Hosta Virus X
N/A
<p>Hosta Virus X is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet...
Tomato Spotted Wilt Virus
N/A
<p>Tomato Spotted Wilt Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keepin...
Impatiens Necrotic Spot Virus
N/A
<p>Impatiens Necrotic Spot Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew ke...
Cucumber Mosaic Virus
N/A
<p>Cucumber Mosaic Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping pl...
Tomato Ringspot Virus
N/A
<p>Tomato Ringspot Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping pl...
Tomato Brown Rugose Fruit Virus
N/A
<p>Tomato Brown Rugose Fruit Virus is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew ...
Phytoplasmas
N/A
<p>Phytoplasmas is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with dew keeping plants wet ...
leaf spot
Bipolaris sorokiniana
<p>leaf spot (Bipolaris sorokiniana) is a plant disease commonly encountered in Middle Tennessee's humid climate. Our subtropical conditions — with de...
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.
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