Key Takeaways Diatomaceous Earth (DE) is mined from deposits of fossilized marine animals. DE kills cockroaches when they crawl over it by leaving scratches on their bodies causing them to dehydrate.

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Diatomaceous Earth (DE): Natural and non-toxic to humans and pets. It dehydrates the bug and is best used in dry, hidden areas. Glue traps: Place under sinks, behind toilets or near entry points.

Diatomaceous Earth (DE): Natural and non-toxic to humans and pets. It dehydrates the bug and is best used in dry, hidden areas. Glue traps: Place under sinks, behind toilets or near entry points.

Use natural remedies like diatomaceous earth or boric acid, or apply insecticides labeled for your specific beetle problem. You can also set pheromone traps to reduce beetle populations.

From carpet beetles to ladybugs to palo verde beetles, here's what to know about the most common beetles in Arizona and why they get in your house.

We spoke to eight pest-control experts and compiled a list of the best ant killers for every type of infestation.