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Plant Pathology: Extension

Plant Disease Library

How To Methods	Fungi	Nematodes
Field Crops, Fruits, Nuts, Vegetables	Ornamentals, Woody Ornamentals, Flowers & Trees	Turf

Disclaimer | Pesticide Safety for the Homeowner | CAES Plant Pathology Publications

How To Methods

Fungi

Alternaria	Entomosporium	Pythium
Botryosphaeria canker	Fusarium	Rhizoctonia
Botrytis	Helminthosporium	Sclerotium
Cercospora	Nectria	Sclerotinia
Choanephora	Pestalotia	Seridium canker
Cladosporium	Phomopsis	Septoria
Colletotrichum	Phyllosticta	Smut fungi
Curvularia	Phytophthora	Thielaviopsis
Cylindrocladium	Powdery Mildew
Downy Mildew	Puccinia	Fungi Key (pdf)

Nematodes

A Quick Guide to Sampling for Nematodes

Plant Susceptibility to Major Nematodes in Georgia

Guide for Interpreting Nematode Assay Result

Nematode Control in the Home Vegetable Garden

Field Crops, Fruits, Nuts, Vegetables

Barley
- Barley Yellow Dwarf
- Loose Smut
Bean
- Fusarium
- Pythium
- Rust
- Sore Shin
- Southern Blight
- Commercial Lima Bean Production
Blueberry
- Anthracnose
- Bacterial Leaf Scorch of Blueberry
- Blueberry Diseases
- Section 24C labels for Brave Ultrex & Bravo WeatherStik Fungicides for Control of Septoria Leaf Spot & Rust (in Adobe Acrobat format)
Blackberry
- Cane Blight of Blackberry
Cabbage
- Black Rot
- Clubroot
Canola
- Blackleg Disease
- Rhizoctonia Crown Rot
Cantaloupe
- Alternaria leaf spot
- Fruit blotch
- Cantaloupe and Specialty Melons
Corn
- Anthracnose
- Charcoal Rot
- Common Rust
- Common Smut
- Corn Disease - Stalk Rots
- Corn Viruses in Georgia
- Georgia Corn Diagnostic Guide
- Reducing Aflatoxin in Corn During Harvest & Storage
- Southern Corn Leaf Blight
Cotton
- Bronze Wilt
- Cotton Boll Rot
- Damping-Off
- Fusarium Wilt
- Georgia Cotton Nematode & Management Considerations
- Rhizoctonia Damping-Off
- Southern Root-Knot
- Understanding Cotton Pests in Your Field
- CAES Cotton Webpage
- Georgia Cotton Commission
Cucumber
- Anthracnose
- Belly Rot
- Phytophthora Fruit Rot
Eggplant
- White Mold
- Commercial Eggplant Production
Fig
- Rust
Miscellaneous
- A Simplified Technique for Recovering Pythium and Phytophthora from Infected Plant Tissue
- Common Landscape Diseases in Georgia
- Disease Control in the Home Vegetable Garden
- Fireblight: Symptoms, Causes & Treatment
- Invasive Species
- Sanitation Measures for Limiting Diseases in the Home Orchard
- The Truth about Slime Molds, Spanish Moss, Lichens & Mistletoe
- Univ. of Maryland Coop Extension - Home & Garden Info Center
Muscadine
- Captan chemical injury
Oat
- Barley Yellow Dwarf
- Crown Rust
- Halo Blight
Onion
- Botrytis
- Pink Root
- Onion Production Guide
- Vidalia Onion Research Lab
- Vidalia Vegetable News
- Commercial Green Onion Production
Peach
- The Georgia Peach
- Southeastern Peach Growers' Handbook
- Southest Regional Peach Newsletter
- Southern Regional Small Fruit Consortium
- S.E. Peach, Nectarine and Plum Pest Management & Culture Guide
Peanuts
- CAES Peanuts Webpage
- Georgia Peanut Commission
- National Peanut Research Lab
- Tomato Spotted Wilt of Peanut
- S.W.E.A.T. - Spotted Wilt Eradication Action Team
Pecans
- Georgia Pecan Information
- Pecan Truffles
- UGA Pecan Breeding Program
- Georgia Pecan Commission
- Minor Fruits & Nuts in Georgia
Pumpkin
- Fruit Blotch
Rye
- Bacterial Stripe or Black Chaff
- Halo Blight
Sorghum
- Anthracnose
- Bacterial Leaf Stripe
- Ergot
- Head Mold
- Leaf Rust
- Rough Leaf Spot
- Zonate Leaf Spot
Soybean
- Soybean Rust - National Pest Alert
- CAES Soybean Webpage
Squash
- Downy Mildew
- Phytophthora Crown and Fruit Rot
Tobacco
- CAES Tobacco Webpage
Tomato
- Early Blight
- Southern Bacterial Wilt
- Yellow Leaf Curl Virus
- Zippering
- CAES Tomato Spotted Wilt Info
- Tomato Spotted Wilt Lesson
- Common Tomato Diseases in Georgia
Triticale
- Bacterial Stripe or Black Chaff
Watermelon
- Gummy Stem Blight
- Watermelon Research & Development Working Group
Wheat
- Barley Yellow Dwarf
- Bacterial Stripe
- Leaf & Glume Blotch
- Leaf Rust
- Loose Smut
- Powdery Mildew
- Take-all
- Wheat Mosaic
- Managment of Take-All Root Rot of Wheat in the Southeast
Top

Ornamentals, Woody Ornamentals, Flowers & Trees

Azalea - Thododendron
- Botryosphaeria Dieback
- Leaf Gall
- Petal Blight
- Phomopsis Canker
- Phytophthora Dieback
Boxwood
- Volutella blight
Camellia
- Algal Leaf Spot
- Canker & Dieback
- Leaf Gall
- Oedema
- Petal Blight
- Root Rot
- Yellow Mottle or Ring Spot Virus
Cherry
- Black Knot
Crabapple
- Fire Blight
- Cedar-Apple Rust
Daylily
- Daylily Dictionary - The American Hemerocallis Society
- Daylily Rust Information Page
Dogwood
- Anthracnose
- Septoria Leaf Spot
- Spot Antracnose
- Dogwood Diseases & Problems
Euonymus
- Powdery Mildew
Geranium
- Bacterial Blight
- Bacterial Leaf Spots
- Botrytis Blight
- Rust
- Oedema
- Geranium Diseases
Holly
- Web or Thread Blight
Indian Hawthorne
- Entomosporium Leaf Spot
Ivy
- Anthracnose
- Bacterial Leaf Spot
- Commercial Production of English Ivy
Juniper
- Cercospora Blight
- Phomopsis Tip Blight of Junipers
Leyland Cypress
- Bot Canker
- Seiridium Canker
- Diseases of Leyland Cypress in the Landscape
Oak
- Oak Leaf Blister
- Key to Diseases of Oaks in the Landscape
- Sudden Oak Death Information for Georgia
- Sudden Oak Death - California Oak Mortality Task Force
- Sudden Oak Death - U. S. Forest Service
Pansy
- Pansy Diseases in the Landscape
Pear (flowering)
- Entomosporium Leaf Spot
- Fire Blight
Photinia
- Entomosporium Leaf Spot
Pine
- Fusiform Rust
- Fusiform Rust on Pines
- Needle Rust
- Key to Diseases of Pines in the Landscape
Poinsettia
- Poinsettia Scab Identified on Cuttings
Pyracantha
- Scab
Rose
- Black Spot
- Disease Images
- Rose Diseases in the Landscape
Top

Turf

Bentgrass
- Anthracnose
Bermuda, Centipede, Fescue, St. Augustine, Zoysia
- Brown Patch
St. Augustine
- Gray Leaf Spot

Guide to Turfgrass Fungicides

Rhizoctonia Diseases of Turfgrass (APS Lesson)

Turfgrass Diseases in Georgia: Identification & Control

Turfgrass Diseases: A Quick Reference Guide

Abiotic Injuries and Disorders of Turfgrasses in Georgia

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