A gecko in your home: the roommate you never asked for but need
A 10 cm gecko shows up indoors. Find out why you shouldn't kill it: it's the best natural insecticide against cockroaches and other pests.
English · Original discussion in Spanish · Published
A gecko in your home: the roommate you never asked for but need
A ten-centimetre reptile appears on the wall. Panic is the first reaction, but the ecological evidence points to that little lizard being the best ally against household pests. Kill it or let it live? The evidence is overwhelming.
The benefits of an unexpected houseguest
The common gecko (known in Spain as salamanquesa) is a nocturnal insect predator: flies, mosquitoes, moths and, above all, cockroaches. An adult can eliminate dozens of insects every night, with no need for chemical insecticides. What's more, it poses no danger to people: it doesn't bite, doesn't transmit diseases and avoids contact. Its presence in the home is, paradoxically, a sign of a healthy ecosystem.
Names and traditions
Spain's linguistic richness has given it dozens of names: salamanquesa, perenquén, gardacho, sargantana, zarandilla or the curious "saltarrostro" from the Yecla region. Each region has its own term, and the debate over which is the most correct is almost as intense as the decision of whether to share your home with it. In the Canary Islands it's called perenquén; in Murcia, saltarrostro; in Catalonia, sargantana. A true atlas of Spanish lexical diversity.
Should you intervene?
Folk advice is divided: some call for direct insecticide, others for peaceful coexistence. But the dominant view among biology enthusiasts is clear: leave it alone. It brings more benefits than annoyances, and its presence is temporary; if there's no food, it will eventually leave. That said, it's worth keeping the walls free of droppings, the little tenant's only real drawback.
The next time a gecko bursts into your home, take a deep breath. Before reaching for the insecticide, remember that this reptile is doing the dirty work for free. Sometimes the best solution is to do nothing.
A ten-centimetre reptile appears on the wall. Panic is the first reaction, but the ecological evidence points to that little lizard being the best ally against household pests. Kill it or let it live? The evidence is overwhelming.
The benefits of an unexpected houseguest
The common gecko (known in Spain as salamanquesa) is a nocturnal insect predator: flies, mosquitoes, moths and, above all, cockroaches. An adult can eliminate dozens of insects every night, with no need for chemical insecticides. What's more, it poses no danger to people: it doesn't bite, doesn't transmit diseases and avoids contact. Its presence in the home is, paradoxically, a sign of a healthy ecosystem.
Names and traditions
Spain's linguistic richness has given it dozens of names: salamanquesa, perenquén, gardacho, sargantana, zarandilla or the curious "saltarrostro" from the Yecla region. Each region has its own term, and the debate over which is the most correct is almost as intense as the decision of whether to share your home with it. In the Canary Islands it's called perenquén; in Murcia, saltarrostro; in Catalonia, sargantana. A true atlas of Spanish lexical diversity.
Should you intervene?
Folk advice is divided: some call for direct insecticide, others for peaceful coexistence. But the dominant view among biology enthusiasts is clear: leave it alone. It brings more benefits than annoyances, and its presence is temporary; if there's no food, it will eventually leave. That said, it's worth keeping the walls free of droppings, the little tenant's only real drawback.
The next time a gecko bursts into your home, take a deep breath. Before reaching for the insecticide, remember that this reptile is doing the dirty work for free. Sometimes the best solution is to do nothing.
Also available in: Deutsch
Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (10 replies).
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