Animals have many different character traits, and Hudson Valley residents who have "vacuum cleaner dogs" know the challenges of a pet that tries to eat every single thing they see... especially when they can be toxic. With fall in full swing in the Hudson Valley, the ground is becoming more and more exciting for curious dogs. Experts Say Black Walnuts Are Unsafe for DogsOne of these "offerings" that may seem appealing to your pet are black walnuts. Read More: Photos of Hudson Valley Rescue Dog’s Astonishing TransformationWhich Parts of the Black Walnut Are Toxic to Dogs? Get our free mobile appMold Danger for Hudson Valley Dogs This FallAs more leaves fall, another hidden danger to keep an eye out for is mold.