Understanding Common Pests in Orange County and Long Beach Before diving into control methods, it helps to know which pests are most common in these areas. Both Orange County and Long Beach share similar climates, which attract a variety of insects and rodents. Common Pests to Watch For Ants : Particularly Argentine ants and carpenter ants, which invade homes searching for food and moisture. Rodents : Rats and mice find shelter in urban and suburban areas, causing damage and