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Vet Warns Dog Owners of Autumn Hazards Like Conkers, Fruit, and Lungworm
28 Sep, 2025
Summary
- Conkers and acorns can cause gastrointestinal issues in dogs
- Certain autumn fruits like apples and plums can also be harmful
- Lungworm infections spike in autumn due to active slugs and snails

As the autumn season sets in, a veterinary expert is warning dog owners about the various health risks their four-legged friends may face. According to Sean McCormack, the head vet at Tails.com, this time of year brings a shift in foliage and natural growth that can pose dangers to curious canines.
One key concern is conkers and acorns, which often fall from trees between September and November. While these may be a tasty snack for wildlife, they can cause gastrointestinal issues in dogs, including vomiting, diarrhea, and abdominal discomfort. The vet advises keeping a close eye on dogs during walks to prevent them from ingesting these autumnal hazards.
Another autumn risk is fallen fruit, such as apples, plums, and other stone fruits. These can also be harmful if consumed by dogs, particularly the stones or cores. The vet recommends regularly clearing away any fallen fruit in gardens to mitigate this threat.
Additionally, the vet warns that autumn is a high-risk season for lungworm infections. This parasite thrives in the damp conditions, and dogs can become infected by either eating slugs or snails or coming into contact with their slime trails. Younger dogs and puppies are especially vulnerable, though older canines are not immune either.
Overall, the veterinary expert emphasizes the importance of pet owners being vigilant about the seasonal changes and potential dangers that autumn can bring for their beloved dogs.