PLANT DAMAGE BY INSECTS
Alexandre Latchininsky, UW CES Entomologist
Cheyenne, January 22, 2007
INSECT MOUTHPARTS
Chewing - mandibles
Piercing-sucking beak
Sucking - proboscis
Plant damage results from
feeding, which depends
on the type of mouthparts
Leaf feeding damage
Adult
Colorado potato beetle
Larvae
Root Weevil and
its damage to
peony
© A. Latchininsky 2006
© A. Latchininsky 2006
Leaf cutter bee and its damage
© A. Latchininsky 2006
Skeletonized leaf feeding
Alfalfa weevil
Leaf beetle larvae
Heavy feeding damage
Leaf feeding and shotholes
European corn borer
Armyworm
Leaf feeding (underside)
Mexican bean
beetle
Larva
Adult
Plant tissue damage
discoloration
Thrips
Two-spotted spider mite
Leaf curling and distortion
Aphids
Leaf curling and distortion
Thrips
Stink bug damage
Leaf mining damage
Agromyza nana
Gall-forming and
leaf-mining pests…
© A. Latchininsky 2006
Eriophyoid mite damage to aspen
© A. Latchininsky 2006
Liriomyza fly damage to goosefoot
Leaf-mining damage
© A. Latchininsky 2006
Liriomyza fly damage to goosefoot
Plant disease vector
Pierce’s disease
symptoms
Glassy-winged
sharpshooter
Arthropod-caused plant galls
Gall-forming damage
© A. Latchininsky 2006
Eriophyoid mite damage to aspen
Spittlebug damage
Stem borer damage
White Pine Weevil Damage
Horntail Wasp damage
Pigeon tremex
Bark beetle damage
Which Insect Caused the Damage?