Kudzu Bug (Globular Stink Bug) on Figs: Identification and Home Invasion Prevention

Asian Invader

The kudzu bug (Megacopta cribraria), also called globular stink bug, arrived in Georgia around 2009, likely on imported plant material. While it feeds on its namesake kudzu, it also attacks soybeans, wisteria, and—as you've discovered—fig trees.

Identification

• Small (4-6 mm), rounded, olive-green to brown
• Distinctive "shield" shape with flattened appearance
• Often found in large aggregations on stems and leaves
• Emit unpleasant odor when disturbed

Agricultural Concern

As a legume feeder, kudzu bug threatens soybean crops. Its broad host range (kudzu, wisteria, fig, soybeans) makes it a significant emerging pest. However, its appetite for kudzu provides some biological control benefit for that invasive vine.

Home Invasion Issue

In fall, adults seek overwintering sites—often invading homes by the thousands through cracks around windows, doors, and siding. They don't bite or damage structures but create significant nuisance.

Control Measures

1. Seal all exterior cracks with caulk
2. Apply labeled exterior insecticides to congregation sites
3. Hose-end sprayers work well for reaching high areas
4. Avoid skin contact with sprays