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July 28, 2026

Why Cuban tree frogs gather on your windows

It's the light, not the glass. Here's what's actually drawing them and how to break the pattern.

Cuban tree frog clinging to the outside of a lit sliding glass door at night
Quick answer
ReptilesAway deters Cuban tree frogs by banding the routes they use to reach lit windows. The frogs come for the insects drawn to the light — switch to motion-sensor fixtures and shake the powder along the base of the wall under the worst windows. The frogs avoid the banded routes and move on.

If you've got frogs plastered to your windows at night, it's not the windows. It's the light coming through them.

The real draw

A lit window at night is a bug beacon. The bugs come to the light, and the frogs — especially Cuban tree frogs, which are invasive and loud — come to the bugs. Turn the light off and the bugs leave; the frogs follow.

The bigger problem

Cuban tree frogs aren't just noisy. They secrete a substance that irritates skin and eyes, and they're known to short out exterior fixtures and A/C contactors. In numbers, they're a real nuisance.

Breaking the pattern

Motion-sensor lights instead of always-on fixtures helps. So does a band of granular powder along the base of the wall under the worst windows and around pool-cage thresholds — the frogs avoid the banded routes they use to climb up.

For the full species guide, see our Cuban tree frogs page. Ready to lay the band? Shop the powder or book a treatment.

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