Master Gardener - OSU Extension 
ENTOMOLOGY AND PEST MANAGEMENT

KEY CONCEPTS 

I. Arthropods  

  1. Insects
  2. Other arthropods 

II. Insect Pests of Houses, Pets and Humans 

  1. Household pests
  2. Wood destroyers
  3. Fleas
  4. Bees and wasps
  5. Insects as disease vectors
  6. Incidental invaders

III. Pest Management 

  1. IPM
  2. Control options 
  3. Pesticide safety 

IV. Submitting Insects for Identification 

V. Orders of Insects and Their Feeding Parts  


Return to Introduction 

 

ORDERS OF INSECTS AND THEIR FEEDING PARTS  

The following is a condensed list of insects by order. These orders include insects that are important to home gardeners. This list indicates how each group feeds on plants and the type of metamorphosis. 

COLEOPTERA: beetles and weevils 
Mouthparts: chewing 
Metamorphosis: complete 

DERMAPTERA: earwigs 
Mouthparts: chewing 
Metamorphosis: incomplete 

DIPTERA: flies, gnats, midges, mosquitoes 
Mouthparts: sponging and piercing/sucking 
Metamorphosis: complete 

HEMIPTERA: stinkbug, plantbug, squash bug, boxelder bug 
Mouthparts: piercing/sucking 
Metamorphosis: incomplete 

HOMOPTERA: scale, mealybugs, whiteflies, aphids, cicadas, leafhoppers 
Mouthparts: piercing/sucking 
Metamorphosis: incomplete 

HYMENOPTERA: bees, ants, wasps, sawflies, horntails 
Mouthparts: chewing 
Metamorphosis: complete 

ISOPTERA: termites 
Mouthparts: chewing 
Metamorphosis: incomplete 

LEPIDOPTERA: butterflies and moths 
Mouthparts: larvae - chewing
adults - sucking
 
Metamorphosis: complete 

NEUROPTERA: lacewings, antlions, alderflies, dobsonflies 
Mouthparts: chewing 
Metamorphosis: complete 

ORTHOPTERA: crickets, praying mantids, grasshoppers 
Mouthparts: chewing 
Metamorphosis: incomplete 

SIPHONAPTERA: fleas 
Mouthparts: larvae - chewing 
adults - sucking 
Metamorphosis: complete 

THYSANOPTERA: thrips 
Mouthparts: rasping/sucking 
Metamorphosis: complete and incomplete

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