Iowa State University Plant and Insect Diagnostic Clinic

Navigation

• A

  • Angular Leaf Spot
  • Anthracnose
  • Apple Scab
  • Ash Decline
  • Ash Rust
  • Aster Yellows

• B

  • Bacterial Spots
  • Bacterial Wilt
  • Black Knot
  • Black Spot
  • Blossom End Rot
  • Botrytis rot
  • Bur Oak Blight

• C

  • Cedar-Apple Rust
  • Cedar-Hawthorn Rust
  • Cladosporium Leaf Spot
  • Corn Smut
  • Crown Gall
  • Cytospora Canker

• D

  • Decline
  • Diplodia Ear Rot
  • Diplodia Tip Blight and Canker
  • Dothistroma Needle Blight
  • Downy Leaf Spot
  • Drought Stress
  • Dutch Elm Disease

• F

  • Fairy Rings
  • Fire Blight
  • Foliar Nematodes

• G

  • Galls
  • Gray Leaf Spot

• H

  • Herbicide Injury
  • Hollyhock Rust
  • Hosta Crown Rot
  • Hosta-infecting Virii

• K

  • Kabatina Tip Blight

• L

  • Leaf and Shoot Blight
  • Leaf Spot and Melting-out
  • Lilac Bacterial Blight

• M

  • Mole Damage

• N

  • Null Virus
  • Nutrient/Soil pH Imbalances

• O

  • Oak Leaf Blister
  • Oak Tatters
  • Oak Wilt

• P

  • Peach Leaf Curl
  • Peach Scab
  • Peony Leaf Blotch
  • Phyllosticta Leaf Spot
  • Pin Oak Chlorosis
  • Pine Wilt
  • Poor Planting Practices and Post-planting Care
  • Powdery Mildew
  • Pseudocercospora Leaf Spot

• R

  • Raspberry Leaf Spot
  • Red Thread
  • Rhizosphaera Needle Cast
  • Rose Rosette
  • Rust on Brambles

• S

  • Seasonal Needle Loss
  • Septoria Leaf Spot
  • Slime Molds
  • Sooty Mold
  • Soybean Cyst Nematode
  • Soybean Rust
  • Stalk Rot
  • Stewart's Wilt

• T

  • Tar Spot
  • Turf Grass Rust

• V

  • Verticillium Wilt

• W

  • Winter Injury

This information is valid for Iowa. It may or may not apply in your area.

Printing, copying and distributing this information as it originally appeared is permitted.

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