Dog owners are being warned to be on the alert this autumn for an illness that can, in rare cases, prove fatal for their pooches. Seasonal Canine Illness (SCI) is a condition that has been reported most often after walking in woodland. The exact cause isn't known, but symptoms, including vomiting, diarrhoea, loss of appetite, and tiredness, can appear within a few days.

Animal charity, Blue Cross, describes SCI as a very rare condition which can affect dogs of any size, shape, age or sex. It advises dog owners who suspect their dog has it to contact a vet within 72 hours of visiting a woodland. The charity pointed to Animal Health Trust research showing fatal cases have fallen since 2010, but said sadly some dogs do not survive. Angela Laws, Head of Community at pet-sitting firm TrustedHousesitters, and vet Dr Rebecca MacMillan have shared their advice on how to protect your dog, from avoiding fallen fruit and acorns to recognising the signs of SCI.

Rebecca warned that some dogs are fascinated by conkers, but you should avoid encouraging this.

She said if your dog swallows a conker on their walk, it could cause an obstruction in their bowels.

The vet added: "Conkers also contain a toxin called aesculin, which can cause stomach upsets.

"Similarly, acorns are not good for your dog, as they contain tannins, which can cause stomach upsets and, in rare cases, liver and kidney problems."

While leaf piles may seem like fun places for dogs to play, they can conceal sharp objects such as glass shards or bits of metal. Hedgehog carrying ticks can also nest in them.

Angela advised sticking to clear, well-kept paths, adding: "If you venture into rougher terrain, consider dog boots for extra paw protection and ensure you give your pooch the once over when you're home."

If your pet goes missing on a walk, microchipping is an effective way to identify them, according to the experts.

Dogs can easily get lost when exercising in the dark and may even run away if spooked by fireworks or Halloween celebrations.

Rebecca said: "Ensure your contact details are up to date on the microchip so you can be easily contacted when your dog is found."

While fallen fruit might seem harmless, it can be quite dangerous for curious pets that naturally want to investigate.

Angela warned that fruits such as apples and plums contain pips and stones which can cause breathing difficulties, sickness and diarrhoea if ingested.

It's important to avoid dangers on the path, but it's just as important to keep your dog warm at this time of year, especially for elderly dogs or breeds which have very thin fur.

Angela suggested buying a dog jacket or coat to keep them cosy, adding: "After a wet and muddy walk, ensure your dog is thoroughly towel-dried and warmed up."

Both Angela and Rebecca recommended chatting with a vet if you have any concerns about your dog's health as the seasons change.