Landscape, Greenhouse, and Nursery - Harlequin Bugs

Harlequin bugs are active now and can be very destructive, expecially on ornamental Kale and Cabbage. The following is some information.


Harlequin Bug Active in August

The harlequin bug, Margantia histrionica, is actively damaging cleome, snapdragon, and ornamental cabbage and kale in nurseries and landscapes. They cause white spotting of the foliage that turns brown.

Control: Insecticidal soap, neem products, Orthene (acephate), synthetic pyrethroids

Information from the Greenhouse TPM/IPM Weekly Report from the University of Maryland Cooperative Extension.