WSU Extension

Hortsense

Peach
 
Disease
Bacterial canker 
Brown rot 
Crown gall 
Cytospora canker 
Leaf curl 
Powdery mildew 
Shothole (Coryneum blight) 
X-disease 
Insect
Aphids 
Brown marmorated stink bug 
Earwigs 
European red mite 
Leafrollers 
Peach twig borer 
Peachtree borer 
Spotted wing Drosophila (SWD) 



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Caption: European earwig found feeding on interior of peach
Photo by: M. Bush
  
Peach : Earwigs
(revision date: 7/31/2017)


Biology
Earwigs are reddish-brown insects about 3/4" or less in length. Both males and females have pincers at the rear end. Earwigs are largely beneficial, feeding on many pests such as aphids, mites, and nematodes, as well as on algae, fungi, and decaying plant material. However, earwigs can also damage plants. They sometimes feed on flowers, shoot tips, leaves, or fruit. Damaged shoot tips may fail to develop properly, sometimes stunting growth. Damaged leaves exhibit small to large holes. Fruit damage consists of shallow, irregular areas chewed into the surface.
Management Options

Non-Chemical Management
  • Rolled newspapers or flat boards placed beneath trees can serve both as monitoring devices and as traps for earwigs, which prefer narrow, enclosed hiding places.
  • Remove tree wraps, which may provide shelter for earwigs.
  • Banding tree trunks with plastic wrap covered with sticky adhesive can prevent earwigs from moving into the tree canopy.
Select non-chemical management options as your first choice!

Chemical Management

Apply spray around the trunk. Allow 3 days prior to harvest. Read the label instructions carefully.

Listed below are examples of pesticides that are legal in Washington. Always read and follow all label directions.
  • Azamax Botanical Insecticide, Miticide, & Nematicide [Organic]
    Active ingredient: azadirachtin  |  EPA reg no: 71908-1-81268
  • Bonide Captain Jack's Deadbug Brew R-T-U [Organic]
    Active ingredient: spinosad (spinosyn A+D)  |  EPA reg no: 4-472
  • Bug Buster-O [Organic]
    Active ingredient: pyrethrins  |  EPA reg no: 1021-1771-54705
  • Safer Brand BioNEEM Multi-Purpose Insecticide & Repellent Conc [Organic]
    Active ingredient: azadirachtin  |  EPA reg no: 70051-6-42697
  • Safer Brand Insect Killing Soap with Seaweed Extract II [Organic]
    Active ingredient: potassium laurate  |  EPA reg no: 42697-59
  • This list may not include all products registered for this use.
Images

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Caption: European earwig found feeding on interior of peach
Photo by: M. Bush
Caption: An adult European earwig
Photo by: M. Bush
Caption: European earwig
Photo by: Unknown
Caption: European earwig damage to pear
Photo by: J.F. Brunner