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Plant Problem Categories

Following are short articles on the major insect and disease categories that are pests of plants. For more detailed information on specific pests please refer to the list of IPM List of Pests by Pest Category. or follow the links off selected pictures.

Pest Category
Problem
Animals Animals
Diseases and Disorders Anthracnose
  Bacterial galls
  Bacterial spots, blights and rots
  Black Mildew and Sooty Mold
  Cankers, diebacks and wilts
  Clubroot
  Downy mildew
  Environmental
  Fairy Rings
  Fruit spots and rots
  Fungal spots, blights and blotches
  Needlecasts and evergreen tip blights
  Nematodes
  Powdery Mildew
  Root, stem, crown and collar rots
  Rusts
  Scabs
  Slime Molds
  Smuts
  Viruses and Phytoplasmas
  White rusts
  Witches'-broom
Insects and Insect-like Pests Adelgids
  Ants
  Aphids
  Bees
  Beetles - Adults and Surface-feeding larvae
  Beetles - Bark beetles
  Beetles - Borers and Miners
  Beetles - Grubs
  Beetles - Rootworms
  Beetles - Weevils
  Beetles - Wireworms
  Beetles, flea - Adults
  Caddisflies
  Caterpillars - Borers and Miners
  Caterpillars - Cutworms
  Caterpillars - Leaf tiers, Rollers, Bagworms and Web formers
  Caterpillars - Surface feeders
  Cicadas
  Crickets
  Earwigs
  Flies - Fruit maggots and Fruit flies
  Flies - Leaf and Stem Miners
  Flies - Midges and Gnats
  Flies - Root maggots
  Grasshoppers
  Hoppers and Leafhoppers
  Katydids
  Lace Bugs
  Mealybugs
  Mites
  Phylloxeras
  Plant Bugs
  Psyllids
  Sawflies - Borers and Miners
  Sawflies - Surface feeders
  Scale
  Spittlebugs
  Termites
  Thrips
  Wasps
  Wasps - Borers and Miners
  Whiteflies
Other Beneficial Insects
  Galls
  Miscellaneous
  Normal
Weeds and Parasitic Plants Weeds

Missouri Botanical Garden, 2001-2011