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HarvestBench
Common pillbug

Photo: Franco Folini · CC BY 2.5

Wikimedia Commons source

Garden pest

Pillbugs & sowbugs

Also called: Roly-polies

Armored crustaceans that usually eat decaying matter but can nibble seedlings in damp beds.

Crops often hit: Seedlings, Strawberry, Cucumber (fruit on soil)

How to identify

  • Oval gray armor; pillbugs roll into a ball, sowbugs do not
  • Active under mulch and boards in damp spots
  • Shallow chewing on soft fruit touching soil

Damage: Usually minor; seedling stems and strawberries on wet soil are the main risk.

Control methods

  1. Reduce excess moisture and thick mulch against tender stems.
  2. Elevate ripening strawberries on straw or clips.
  3. Remove boards and debris hiding spots near beds.

What products to use

We list product types and what to check on the label — not brand rankings, prices, or “we tested” claims. Always follow the label for your crop, and prefer the least disruptive option that works.

  • Iron phosphate bait (labeled for sowbugs where listed)

    When: Seedlings repeatedly chewed in damp beds

    Look for: Label listing sowbugs/pillbugs; fixing moisture often matters more