Stink Bugs

Denise Attaway  |  4/28/2011 11:56:11 PM

Stink bugs mating on a blueberry plant. Photo by Rory Register/Rory's Photography. Source: www.bugwood.org

Stink bugs can damage larger green and ripe blueberries. Photo by Jerry A. Payne, USDA/ARS. Source: www.bugwood.org.

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Stink bugs are often more brightly colored with orange or red markings. Nymphs are wingless, although wing pads are apparent.

Facts:
  • Stink bugs overwinter as adults in ditch banks or under boards or other similar materials.
  • They become active in spring when temperatures rise above 70 degrees.
  • Each female oviposits up to several hundred eggs.
  • Nymphs hatch and pass through five instars before becoming adults.
  • Approximately 4 to 5 weeks elapse between hatching and adult emergence.

Damage:

  • Can damage larger green and ripe fruits.
  • Also can raise their brood within fruiting clusters.
  • Pierce plants with their needlelike mouthparts and suck sap from pods, buds, blossoms and seeds.
  • Degree of damage depends, to some extent, on the developmental stage of the plant when it is injured by stink bugs.
  • Immature fruit and pods punctured by bugs become deformed as they develop.
  • Seeds are often flattened and shriveled.
  • Germination is reduced.

Control:

  • Hand picking may lower number sufficiently to prevent injury.
  • Chemicals may also be used.
  • Check with your local Cooperative Extension Service office for chemical recommendations or specific control measures for your region.

Sources:

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