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Pests and their Damage—Bloom

On this page
  • Fruittree leafroller
  • Green fruitworm
  • Obliquebanded leafroller
  • Western tussock moth
  • Orange tortrix
  • European earwig
  • Black cherry aphid
  • Western flower thrips

Use the photos below to identify damage. Names link to more on identification and management.

Click on photos to enlarge

Fruitree leafroller
Fruittree leafroller damage
Identification tip: Larvae feed on blossoms and leaves; leaves are webbed together to form a protective case.

Green fruitworm
Green fruitworm
Identification tip: Larvae eat large holes in young leaves.

Obliquebanded leafroller
Obliquebanded leafroller
Identification tip:
Larvae are yellowish green with brown to black heads. As they mature, larvae construct tubular shelters from a single leaf.

Feeding damage to blossoms of cherry
Western tussock moth larva
Identification tip: Larvae are gray with numerous red, blue, and yellow spots. There are four prominent white tufts of hair on the back, two black tufts on the head, and one on the tail end.

Crop damaged by orange tortrix
Orange tortrix damage
Identification tip: Leaves webbed together to form protective cases often indicate the presence of orange tortrix.


Earwigs, aphids, and thrips

Crop damaged by European earwig
European earwig
Identification tip: Leaves on mature trees have numerous irregular holes or are chewed around the edges.

Black cherry aphid
Black cherry aphid damage
Identification tip: Feeding causes leaves to curl and become distorted. A number of natural enemies help lower aphid populations.

Adult Western flower thrips
Western flower thrips
Identification tip: Adults are tiny and slender, ranging in color from yellow to almost black. Wings are fringed and folded lengthwise across the back when the insect is at rest.

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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