The answer to 'retaining wall pests' is that common pests that can infest retaining walls include termites, carpenter ants, and burrowing insects like beetles or grubs. Signs of infestation include visible damage, tunneling, or mud tubes on the wall. To address retaining wall pests, you'll first need to identify the specific pest and then take appropriate action, which may include applying targeted insecticides or hiring a professional exterminator.
For minor infestations, you may be able to handle some pest control measures yourself, such as using bait traps or applying insecticidal sprays. However, for more severe or difficult-to-treat infestations, it's generally best to call in a professional landscaping or pest control service. They have the expertise and equipment to properly diagnose and eliminate the problem safely and effectively.