Check with your veterinarian for help in finding information on native plants in your area that are toxic to pets.
Flea and Tick treatments
Using more or not following product recommendations
is NOT the way to kill more fleas and ticks!
Lawn fertilizers, weed killers
Household cleaners and chemicals

Any specific pet poison-proofing tips?
Some of the potential toxins above may seem obvious, but think again. Poisons such as rat, slug, snail, mice, and ant baits are baits, they are made to be attractive and tasty, even to the curious pet. Don't count on how well you hide these baits, either. Make sure that they are safely out of pet's reach (and that the pet isn't able to chew through something to get at them).

Medications made for humans may have coatings on them that are tasty to pets, enticing ingestion. Ethylene glycol antifreeze is known to be sweet-tasting, a danger to pets and children.

Unknowingly playing fetch or encouraging your dog to chew on plants or trees that are poisonous could have disastrous effects.

Dogs love to chew...that spray bottle, can, or other container may be viewed as a toy by a curious dog....until the container is punctured and contents leak out!

Finally, please carefully read all directions for use of chemicals; those intended for pets and those intended for other purposes (yard, house) and follow directions carefully.