Our zucchini yield this year was spectacular. The leaves have recently withered and the last zucchinis were harvested. Among the withered plants, on top of the last zucchini, were three squash bugs – an a adult and two large nymphs.
These insects attack all members of the cucurbit family, most commonly feeding on pumpkins and squash. They feed primarily on plant foliage though they may feed on fruit throughout the fall. Their feeding results in wilting of leaves that ultimately appear black or dried out.
Unmated adults overwinter under plant debris, around buildings, and under rocks. They emerge in spring, mate, and the females lay eggs until midsummer. The young mature within 4-6 weeks. There is typically one generation per year in the midwest.
Note to self: No plant debris in the garden this winter…