If your dog enjoys swimming, or if you're going on long hikes and they're drinking from lakes and from streams, then at this time of year you really need to know all about blue-green algae poisoning in dogs. Blue-green algae can kill a dog within 15 minutes. It produces toxins that stop the nerves working or destroy the liver. The main risk period is late summer and early autumn when water levels are low and warm - perfect for blue-green algae growth.

Check out my complete guide to blue-green algae poisoning in dogs