How to Manage Pests
Pests in Gardens and Landscapes
Harlequin bug—Murgantia histrionica
Harlequin bugs are attractive shield-shaped insects in the stink bug family and are usually black with
bright red, yellow, or orange markings. Adult bugs are 3/8 inch long.
of species | Life
Harlequin bugs suck fluids from plant tissue. They leave yellow or white blotches on areas of leaves
where they have been feeding; heavy infestations can cause plants to wilt, turn brown, and die.
Handpick bugs or their eggs. Eliminate groundcovers or weedy areas (especially mustards) in early spring
before populations build up. Destroy old cole crop plants and mustards because they provide breeding areas.
Insecticides are generally not recommended in gardens for stink bugs. Parasites and general
predators may contribute to control.
blotch caused by harlequin feeding