- Author: Kathy Keatley Garvey
'Tis the season for the return of the insects.
Many a honey bee foraged in the flowering quince (Chaenomeles speciosa) last weekend. But wait, what's that? A spotted cucumber beetle (Diabrotica undecimpunctata) tucked inside a blossom.
Spotted cucumber beetles, which overwinter as adults, are major agricultural pests. The beetle is so named because of its preference for cucumbers (cucurbits), but just about anything will do before, during and after the cucumber crop. True, it gravitates toward other members of the cucurbits family, including squashes, gourds, pumpkins and melons, but it also goes after beans, peas, corn, potatoes, beets, tomatoes, eggplants, cabbage, and assorted ornamentals, such as roses and dahlias.
The yellowish-green beetle with black spots may look pretty tucked inside a flowering quince, but looks are deceiving.