The answer to 'why is my mulch pests' is that mulch can attract certain types of pests, like insects, rodents, and even snakes, if not properly maintained. Mulch provides a dark, moist environment that many pests find appealing for nesting and feeding.
Some common symptoms of pest problems in mulch include seeing insects or their larvae, finding rodent burrows, or seeing physical damage to the mulch itself. To address this, you'll want to regularly maintain the mulch by keeping it fresh, removing any debris or decaying material, and ensuring proper depth and coverage around plants.