Whether they are on your Christmas tree, a wreath or some garland, pine needles can be a problem if ingested. The needles can puncture or irritate the lining of your dog’s stomach, and the oils can irritate the mucous membranes. The needles may not kill your pet, but they can make him really uncomfortable and ill.

What wood is toxic to dogs?

Poisonous Wood White cedar, also known as the bell tree, is a popular ornamental that is extremely toxic to your pup. Some varieties of pine, including Australian pine, are also hazardous to dogs. Apple trees are particularly toxic, and can produce deadly levels of cyanide when ingested in large quantities.

Can dogs chew on pine bark?

Chemical Poisoning Pieces of treated lumber can contain toxic arsenic compounds, which are poisonous to dogs and humans. Chewing the wood is certainly dangerous, but your dog can become ill by eating food or drinking water from the surface, according to Partnership for Animal Welfare.