Transcript No Slide Title

FFA Judging Contest
Plant Pathology
Study Guide
Revised 8-07
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The following PowerPoint presentation was assembled by Tom
McCutcheon and Mike Shamblin. The information was assembled from various
sources publicly available on the Internet. The information was gathered over a
period of time and from sources too numerous to list individually. The author
would like to acknowledge the assistance of these web sites and publicly express
his sincere appreciation for the assistance.
•
The presentation was assembled solely for educational purposes. The
author did not or will never receive financial reward for the preparation of the
presentation.
•
The presentation may be copied and distributed in parts or in its entirety for
educational purposes. If any part of this presentation is distributed, the efforts of
Mr. McCutcheon and Mr. Shamblin in assembling the materials must be
recognized. The distributor may not receive any financial compensation for this
service.
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Tom McCutcheon
Mike Shamblin
Extension Agent
Extension Agent
[email protected]
[email protected]
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WVU Monongalia Co. Ext. Office
WVU Clay Co. Ext. Office
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26 Commerce Drive, WesMon Plaza
New Courthouse - Main Street
Morgantown, WV 26501
P.O. Box 119
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(304) 291-7201
Clay, WV 25043-0119
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FAX (304) 291-7202
(304) 587-4267
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FAX (304) 587-7054
Instructions
The next time you left-click the mouse a
new window will appear with a picture of a
pest. Try to identify it. Once you have
decided on what it is or have given up, leftclick again and the common name will
appear. The next slide will then ask
questions about the disease and left-clicking
will reveal the answers.
Corn - Smut
Corn - Smut
Control
• Cut and destroy
diseased parts.
• Crop Rotation.
Bean - Anthracnose
Bean - Anthracnose
Control
• Spray with Bravo
• Mancozeb
• Remove infected
plants.
Cucumber - Bacterial Wilt
Cucumber - Bacterial Wilt
Control
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Provado dust
Ambush
Asana
Pounce
Rotenone for
cucumber beetles.
Tomato - Anthracnose
Tomato - Anthracnose
Control
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Use 3 year rotation.
Use clean seed.
Mancozeb.
Copper.
Bravo Fungicides.
Wheat - Scab
Wheat - Scab
Control
• If following corn,
cover residue
completely
• Treat seed with a
suitable chemical.
Tomato – Root Knot Nematode
Tomato – Root Knot Nematode
Control
• Buy nematode-free
plants.
• Fumigate soil.
Rye - Ergot
Rye - Ergot
Control
• Use disease free seed.
• Cut wild grass hosts.
Strawberry – Botrytis Rot
Strawberry – Botrytis Rot
Control
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Renovate
Thin old beds
Captan
Topsin-M
Ronilan
Corn - Rust
Corn - Rust
Control
• No practical control
Potato – Late Blight
Potato – Late Blight
Control
• Spray with Mancozeb.
• Copper.
• Bravo fungicides.
Wheat - Powdery Mildew
Wheat - Powdery Mildew
Control
• Resistant Varieties
Corn–Maize Dwarf Mosaic Virus
Corn–Maize Dwarf Mosaic Virus
Control
• Use Resistant Varieties
Tomato – Blossom End Rot
Tomato – Blossom End Rot
Control
• Mulch to keep an even
water supply
• Keep calcium high.
Tomato – Early Blight
Tomato – Early Blight
Control
• Spray with Mancozeb
• Copper
• Bravo fungicides
Tomato – Septoria Leaf Spot
Tomato – Septoria Leaf Spot
Control
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Use 3 year rotation.
Mancozeb.
Copper.
Bravo fungicides.
Wheat – Glume Blotch
Wheat – Glume Blotch
Control
• Treat seed with
suitable chemical
Tomato – Late Blight
Tomato – Late Blight
Control
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Spray with Mancozeb
Copper
Terranil
Bravo fungicides
Strawberry – Leaf Blight
Strawberry – Leaf Blight
Control
• Spray with Captan
Apple - Scab
Apple - Scab
Control
• Spay with Captan
• Rubigan + Captan
• Rubigan + Ziram
Bean – Bacterial Blight
Bean – Bacterial Blight
Control
• Use disease free seed
• Crop rotation
Apple – Sooty Blotch
Apple – Sooty Blotch
Control
• Spray with Captan
• Remove dead
branches
Peach – Leaf Curl
Peach – Leaf Curl
Control
• Lime-sulfer in winter
time
• Ferbam
• Sulfer Wettable
• Bravo fungicide
Brambles – Crown Gall
Brambles – Crown Gall
Control
• Avoid infested soil
• Remove infected
plants
• Disease free plants
Apple – Bitter Rot
Apple – Bitter Rot
Control
• Spray with Captan
• Remove dead
branches
Cherry – Brown Rot
Cherry – Brown Rot
Control
• Spray withCaptan +
Topsin-M mixed.
Peaches – Brown Rot
Peaches – Brown Rot
Control
• Wettable sulfer
• Benlate plus Captan
• Benlat plus Sulfer
Barley - Scald
Barley - Scald
Control
• Use resistant varieties
Apple – Cedar Rust
Apple – Cedar Rust
Control
• Remove alternate host
• Rubigan + Captan
• Rubigan + Ziram
Strawberry – Leaf Spot
Strawberry – Leaf Spot
Control
• Spray with Captan
• Topsin-M
Apple – Frog-eye Leaf Spot
Apple – Frog-eye Leaf Spot
Control
• Spray with Captan
• Nova + mancozeb
• Remove diseased parts
Barley – Covered Smut
Barley – Covered Smut
Control
• Treat seed with
suitable chemical
Apple – Fire Blight
Apple – Fire Blight
Control
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Remove diseased parts
Streptomycin
Bordeaux
Fixed copper
Potato – Hopperburn
Potato - Hopperburn
Control
• Spray with
Methoxychlor
Barley – Stripe Rust
Barley – Stripe Rust
Control
• Treat seed with
suitable chemical
Corn – Northern Leaf Blight
Corn – Northern Leaf Blight
Control
• Use resistant varieties
Plum – Brown Rot
Plum – Brown Rot
Control
• Spray with Captan
Topsin-M mixed.
Potato – Black Leg
Potato – Black Leg
Control
• Treat seed with Captan
• Polyram
• Disease free seed
Barley – Powdery Mildew
Barley – Powdery Mildew
Control
• Use resistant varieties
Wheat – Loose Smut
Wheat – Loose Smut
Control
• Hot water seed
treatment
• Water soak treatment
• Treat seed with a
suitable chemical
Grapes – Powdery Mildew
Grapes – Powdery Mildew
Control
• Bordeaux
• Fixed copper
• Bayleton
Peach - Scab
Peach - Scab
Control
• Spray with wettable
sulfur + Benlate
Potato – Leaf Roll
Potato – Leaf Roll
Control
• Use disease free seed
Barley – Loose Smut
Barley – Loose Smut
Control
• Treat seed with
suitable chemical
• Hot water – long water
soak treatment.
Potato - Scab
Potato - Scab
Control
• Acidify soil
• Use resistant varieties
Wheat – Stem Rust
Wheat – Stem Rust
Control
• Use resistant varieties
• Destroy alternate host
Wheat – Leaf Rust
Wheat – Leaf Rust
Control
• Use resistant varieties
Potato – Ring Rot
Potato – Ring Rot
Control
• Use disease free seed
Alfalfa - Leaf Spots
Alfalfa - Leaf Spots
Control
• Cut foliage in a timely
manner
Grapes - Black Rot
Grapes - Black Rot
Control
• Ferbam
• Captan
• Bayleton
Potato - Rhizoctonia
Potato - Rhizoctonia
Control
• No practical control
• Cultural practiceplant shallow and hill
deep.
Brambles - Anthracnose
Brambles - Anthracnose
Control
• Spray with lime-sulfur
in spring when leaves
show 1/2 inch growth;
follow with Captan at
bloom and two weeks
after bloom.
Oats - Stem Rust
Oats - Stem Rust
Control
• Use resistant varieties
• Destroy alternate host
Crucifers - Club Root
Crucifers - Club Root
Control
• Avoid infested soil
• Apply lime to soil
Plum - Brown Rot
Plum - Brown Rot
Control
• Spray with Captan and
Topsin-M mixed.
Potato – Early Blight
Potato – Early Blight
Control
• Spray with Mancozeb
• Copper
• Bravo fungicides
Alfalfa - Downy Mildew
Alfalfa - Downy Mildew
Control
• Cut foliage in a timely
manner
Bramble - Orange Rust
Bramble - Orange Rust
Control
• Remove infested
plants, including roots
Crucifers - Soft Rot
Crucifers - Soft Rot
Control
• Prevent mechanical
and insect injuries to
plants
Clover - Sclerotinia Crown Rot
Clover - Sclerotinia Crown Rot
Control
• No practical control
Crucifers - Black Leg
Crucifers - Black Leg
Control
• Use clean seeds
• Hot water treatment
• Rovral
Grapes - Downy Mildew
Grapes - Downy Mildew
Control
• Bordeaux
• Fixed copper
Plum - Black Knot
Plum - Black Knot
Control
• Cut and destroy
diseased parts
• Spray with Captan
Clover - Rust
Clover - Rust
Control
• No practical control
Potato - Mosaic Virus
Potato - Mosaic Virus
Control
• Use disease free seed
Clover - Powdery Mildew
Clover - Powdery Mildew
Control
• Use resistant varieties
Cucurbits - Powdery Mildew
Cucurbits - Powdery Mildew
Control
• Spray with Bravo
Beans - Mosaic Virus
Beans - Mosaic Virus
Control
• No chemical control.
• Control weeds
• Use disease free seed
Cherry - Leaf Spot
Cherry - Leaf Spot
Control
• Spray with Captan and
Topsin-M mixed
Bean - Rust
Bean - Rust
Control
• Sulfur dust
• Bravo fungicides
• Resistant varieties.
Oats - Crown Rust
Oats - Crown Rust
Control
• Use resistant varieties
Oats - Loose Smut
Oats - Loose Smut
Control
• Treat seed with
suitable chemical
Tomato - Wilt Diseases
Tomato - Wilt Diseases
Control
• Use resistant varieties
Cucurbits - Anthracnose
Cucurbits - Anthracnose
Control
• Mancozeb
• Bravo fungicides
• Topsin-M
Cucurbits - Downy Mildew
Cucurbits - Downy Mildew
Control
• Bravo fungicides
• Mancozeb
• Quadris
Corn - Southern Leaf Blight
Corn - Southern Leaf Blight
Control
• Use resistant varieties
Peach - Yellows
Peach - Yellows
Control
• Pull and destroy
disease trees
Corn - Grey Leaf Spot
Corn - Grey Leaf Spot
Control
• Use resistant varieties