PLANT DISEASES CCA TRAINING

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Table of Contents

PLANT DISEASES CCA TRAINING

COMPETENCY AREA 2 Management of Plant Diseases

Disease Identification

SYMPTOMS

Disease symptoms

SIGNS

Disease signs

CLASSIFY DISEASES BY PATHOGEN

EXAMPLES

KNOW CONDITIONS THAT FAVOR DISEASE DEVELOPMENT FOR EACH DISEASE

DETERMINE CONTROL MEASURES FOR EACH DISEASE

CULTURAL CONTROLS

DISEASE CONTROL

CORN DISEASES

Lesion nematode Symptom/Sign

Lesion Nematode

Lesion nematode Control Methods

Maize dwarf mosaic (virus) Symptom/Sign

Maize Dwarf Mosaic

Maize dwarf mosaic (virus) Conditions favoring development

Maize dwarf mosaic (virus) Control Methods

Maize chlorotic dwarf (virus) Symptom/Sign

Maize chlorotic dwarf (virus)

Maize chlorotic dwarf (virus) Conditions favoring development

Maize chlorotic dwarf (virus) Control Methods

Northern corn leaf blight (fungus) Symptom/Sign

Northern Corn Leaf Blight (fungus)

Northern corn leaf blight (fungus) Conditions favoring development

Northern corn leaf blight (fungus) Control Methods

Southern corn leaf blight (fungus) Symptom/Sign

Southern Corn Leaf Blight (fungus)

Southern corn leaf blight (fungus) Conditions favoring development

Southern corn leaf blight (fungus) Control Methods

Carbonum(Northern corn) Leaf Spot (fungus) Symptom/Sign

Carbonum Leaf Spot

Carbonum(Northern corn) Leaf Spot Conditions favoring development

Carbonum leaf blight (fungus) Control Methods

Gray leaf spot (fungus) Symptom/Sign

Gray Leaf Spot (fungus)

Gray leaf spot (fungus) Conditions favoring development

Gray leaf spot (fungus) Control Methods

Common Rust (fungus) Symptom/Sign

Common Rust (fungus)

Rust Conditions favoring development

Rust Control Methods

Fusarium stalk rot (fungus) Symptom/Sign

Fusarium Stalk Rot

Fusarium stalk rot (fungus) Conditions favoring development

Fusarium stalk rot (fungus) Control Methods

Fusarium ear rot (fungus) Symptom/Sign

Fusarium Ear Rot

Fusarium ear rot (fungus) Conditions favoring development

Fusarium ear rot (fungus) Control Methods

SOYBEAN DISEASES

Damping Off Symptom/Sign

Damping Off Conditions favoring development

Damping Off

Damping Off Control Methods

Phytophthora root rot (fungus) Symptom/Sign

Phytophthora Root Rot

Phytophthora root rot (fungus) Conditions favoring development

Phytophthora root rot (fungus) Control Methods

Rhizoctonia root rot (fungus) Symptom/Sign

Rhizoctonia root rot (fungus) Conditions favoring development

Rhizoctonia root rot (fungus) Control Methods

Septoria leaf spot (Brown spot) Symptom/Sign

Septoria leaf spot Conditions favoring development

Septoria leaf spot Control Methods

Charcoal rot Symptom/Sign

Charcoal Rot

Charcoal rot Conditions favoring development

Charcoal rot Control Methods

Sclerotinia white mold (fungus) Symptom/Sign

Sclerotinia White Mold

Sclerotinia white mold (fungus) Conditions favoring development

Sclerotinia white mold (fungus) Control Methods

Pod and stem blight (fungus) Symptom/Sign

Pod and Stem Blight

Pod and stem blight (fungus) Conditions favoring development

Pod and stem blight (fungus) Control Methods

Anthracnose Symptom/Sign

Anthracnose

Anthracnose Conditions favoring development

Anthracnose Control Methods

Soybean cyst nematode Symptom/Sign

Soybean Cyst Nematode

Soybean Cyst Nematode

Soybean cyst nematode Control Methods

Root knot nematode Symptom/Sign

Root Knot Nematode

Root knot nematode Control Methods

Soybean mosaic (virus) Symptom/Sign

Soybean Mosaic (virus)

Soybean mosaic (virus) Conditions favoring development

Soybean mosaic (virus) Control Methods

Tobacco Ringspot Virus Symptom/Sign

Tobacco Ringspot

Tobacco Ringspot Conditions favoring development

Tobacco Ringspot Control Methods

Wheat Diseases

Powdery Mildew (fungus) Symptom/Sign

Powdery Mildew

Powdery Mildew (fungus) Conditions favoring development

Powdery Mildew (fungus) Control Methods

Leaf rust (fungus) Symptom/Sign

Leaf Rust

Leaf rust (fungus) Conditions favoring development

Leaf rust (fungus) Control Methods

Septoria leaf and glume blotch (fungus) Septoria nodorum Symptom/Sign

Septoria Leaf and Glume Blotch

Septoria leaf and glume blotch (fungus) Conditions favoring development

Septoria leaf and glume blotch (fungus) Control Methods

Scab (fungus) Symptom/Sign

Scab

Scab (fungus) Conditions favoring development

Scab (fungus) Control Methods

Take-all (fungus) Symptom/Sign

Take-all

Take-all

Take-all (fungus) Conditions favoring development

Take-all (fungus) Control Methods

Barley yellow dwarf (virus) Symptom/Sign

Barley Yellow Dwarf

Barley yellow dwarf (virus) Conditions favoring development

Barley yellow dwarf (virus) Control Methods

Wheat spindle streak mosaic (virus) Symptom/Sign

Wheat Spindle Streak

Wheat spindle streak mosaic (virus) Conditions favoring development

Wheat spindle streak (virus) Control Methods

Loose Smut (fungus) Symptom/Sign

Loose Smut (fungus) Control Methods

Alfalfa Diseases

Phytophthora root rot (fungus) Symptom/Sign

Phytophthora Root Rot

Phytophthora Root Rot

Phytophthora root rot (fungus) Conditions favoring development

Phytophthora root rot (fungus) Control Methods

Anthracnose (fungus) Symptom/Sign

Anthracnose

Anthracnose (fungus) Conditions favoring development

Anthracnose (fungus) Control Methods

Sclerotinia crown rot (fungus) Symptom/Sign

Sclerotinia Crown Rot

Sclerotinia Crown Rot

Sclerotinia crown rot (fungus) Conditions favoring development

Sclerotinia crown rot (fungus) Control Methods

Leaf spots (fungus)-Common Lepto Symptom/Sign

Leaf Spots

Leaf spots (fungus)-Common Lepto Conditions favoring development

Leaf spots (fungus)-Common Lepto Control Methods

Spring blackstem (fungus) Symptom/Sign

Spring Blackstem

Spring blackstem (fungus) Conditions favoring development

Spring blackstem (fungus) Control Methods

Verticillium wilt (fungus) Symptom/Sign

Verticillium Wilt

Verticillium Wilt

Verticillium wilt (fungus) Conditions favoring development

Verticillium wilt (fungus) Control Methods

Most Common Symptoms of Nematode Injury

FUNGICIDE CLASSIFICATION

TREATMENT THRESHOLDS FOR FUNGICIDE APPLICATION

Author: Bob Mulrooney