The answer to 'what causes pest' is that pests can be attracted to homes and buildings for a variety of reasons, including readily available food sources, water, shelter, and warmth. Pests like rodents, insects, and other unwanted animals may invade a home in search of these basic needs. Poor sanitation, clutter, and cracks or crevices in the home's structure can all contribute to pest infestations.
Pests can cause damage to the home, spread diseases, and create unsanitary conditions. It's important to address the root causes of pest problems to prevent and control infestations effectively.