Brown-marmorated stink bug

Brown marmorated stink bug-5228723

Adult brown marmorated stink bug. Photo:

  • As an adult, Halyomorpha halys is a 12-17 mm long mottled brown coloured stink bug, shaped like a shield
  • Very wide host range and affects many plants, including tree nuts such as hazelnut, pecan and potentially walnuts
  • Originally from eastern Asia, but recently introduced to North America and Europe where it is having a significant impact on agriculture and as a nuisance pest
  • Saliva causes significant damage to plant tissues
  • Eggs are cream to yellow-orange and approximately 1.6 mm long and laid in clusters on the underside of leaves
  • Five nymph stages that range from less than 3 mm to 12 mm long. The nymphs are orange and black when they first hatch but quickly develop a similar colouration to the adults
  • The adults and larvae can be confused with a number of other brown coloured stinkbugs that are present in Australia
  • Hitchhikes in container shipments of a range of commodities, including plant material. Adults are capable of flight allowing localised spread of the pest

High priority pest of: apples and pears, berries, cherries, cotton, dried grapes, hazelnuts, pecans, strawberries, summerfruit, tables grapes, truffles, walnuts, vegetables

Scientific name: Halyomorpha halys
EPPRD Category:
Life Form: Stink bugs, aphids, mealybugs, scale, whiteflies & hoppers (HEMIPTERA)

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol