• Empty water once a week: Empty flower pots, saucers, planters, and bird baths, and rinse them briefly. This will help prevent new mosquitoes.
• Store containers dry or upside down: Watering cans, buckets, wheelbarrows, or toys can collect rainwater. If stored upside down or kept dry, they won’t become breeding grounds.
• Cover rain barrels: Open rain barrels are ideal breeding grounds. A lid or fine-mesh net prevents eggs from being laid.
• Check gutters and drains: Clogged gutters or drains can also collect water. Regular cleaning helps prevent breeding sites.
• Clean even in fall and winter: Scrub buckets, coasters, and similar containers with hot water at the end of the season. This removes overwintering eggs.

• Bti tablets are effective. They contain a natural soil bacterium that specifically targets mosquito larvae. They are considered safe for humans, pets, and plants.
• Available free of charge at City Hall, many local administrative offices, and the Wiesbaden Environmental Store at Luisenstraße 19. You can also get advice on how to use them there. 

Here’s where you can get the Bti tablets for free:
Mosquitoes | State Capital of Wiesbaden

In just a few simple steps, you can prevent mosquito bites and ensure a relaxing summer on your balcony, patio, and in the garden.