Bay Leaves to Prevent Asian Beetles

Nuisance Issues

• When Asian beetles enter the home, they are not only unattractive, but large groups of them might emit an unpleasant odor. Their joints also secret a yellow substance that stains walls and fabrics, and the bugs have even been known to bite people, although not in an aggressive manner. You'll usually find them huddled in light, warm areas of the house, such as sunny windowsills.

Bay Leaves

• People who want to try chemical-free ways of preventing Asian beetles from entering their homes may try using bay leaves, but there is no scientific evidence that this works, according to the Ohio State University Integrated Pest Management website. Still, the method is attractive due to its organic nature. To prevent Asian beetles from entering the buildings, slip whole bay leaves into the cracks between the window and the screen on the outside of the house. The strong scent is thought to repel the bugs, and the leaves also provide a physical barrier.

Prevention

• A far more effective method of preventing Asian beetles from clustering in your home involves the combination of pesticides and caulking. Asian beetles can enter your home through very small -- only 1/8 of an inch wide -- cracks and openings. Caulk around your windows and doors before autumn arrives and spray the exterior of your home with a pesticide approved for use in your state.

Removal

• If the Asian beetles do make it into your home or business, the best way to remove them is with a vacuum cleaner, according to Ohio State University's Extension website. Crushing, sweeping or other contact methods will cause the insects to excrete an unpleasant yellow liquid that permanently stains.