Get matched with top animal fencing pros in Shingletown, CA

Some suggest mothballs as a deterrent for iguanas, but they are ineffective and harmful. Mothballs contain chemicals like naphthalene or paradichlorobenzene, which are toxic to humans and animals, including iguanas. The fumes can cause respiratory problems, skin irritation, and other health issues. Moreover, using mothballs outdoors is not recommended, as they contaminate soil and water sources.

Generally, squirrels are not considered aggressive toward humans. They are more likely to flee than confront people. However, like many animals, they may exhibit aggressive behavior if they feel threatened or cornered. If you approach a squirrel too closely or try to handle it, especially if it's a mother protecting her young, it may resort to defensive tactics such as biting or scratching.

Possums are not aggressive toward people or pets. They are shy critters that prefer to avoid confrontations. When threatened, they may hiss, growl, or display their teeth but are more likely to play dead as a defense mechanism. Possums rarely attack unless cornered or provoked. They are not a significant threat to pets, though a curious dog or cat might provoke a defensive reaction.

Iguanas cause a variety of damage to properties and pose other dangers. Their tunnels can collapse seawalls and foundations. They destroy native plants, trees, gardens, and agriculture. They compete with native animals for food. Their droppings, left almost anywhere, can transmit salmonella which is especially dangerous to vulnerable groups like children and the elderly.