‘Deathcap mushrooms can appear any time of year but are more common during Autumn a week or two after good rains. They have been found in the Canberra region, in and around Melbourne, in northern Tasmania and in Adelaide. They are not native to Australia and are often found near oak trees growing in warm wet weather. The similar marbled deathcap mushrooms have also been recently found in WA, although they may not be as toxic.
Deathcap mushrooms are difficult to distinguish from other wild mushrooms so we recommend you play it safe and only eat mushrooms that you have purchased from the supermarket, greengrocer or other reputable source. People born overseas, especially in Asian countries, should be aware that these deadly mushrooms can look like edible mushrooms that they may have gathered overseas.
The toxin in deathcap mushrooms is not destroyed by cooking. Symptoms include vomiting, diarrhoea and stomach cramps and often don’t appear until 10 to 16 hours after eating. These symptoms may ease for 2 to 3 days before a terminal phase of 3 to 4 days begins. Without early, effective medical intervention people may go into a coma and die after 2 or 3 weeks of liver and kidney failure.
Nine out of ten deaths from mushroom poisoning in Australia result from deathcap mushrooms. However there are other wild mushrooms in Australia that, while not fatal, can make you ill with vomiting and diarrhoea. These include the yellow stainer which resembles a field mushroom and is the most commonly ingested poisonous mushroom in Victoria.
Many reported cases of fungi poisoning are in children under five years of age. Most young children who eat poisonous mushrooms find them in the garden at home. Children younger than five years of age have a natural inclination to put things in their mouths. If you have a toddler, you should regularly check your garden for mushrooms and remove them to reduce the risk of accidental poisoning.
If you suspect you may have eaten a deathcap mushroom don’t wait for any symptoms to occur but go to a hospital emergency department taking a sample of the mushroom with you if you can. You can also contact the Poisons Information Centre on 13 11 26 (24 hours a day 7 days a week).
ACT Health: If you think you see any possible Deathcap mushrooms growing in Canberra do not touch but report them contact Access Canberra on 13 22 81 see more information
Queensland see more information
Better Health Channel (Victorian Government) see more information
Australian National Botanic Gardens see more information
WA Health see more information
See more about Natural toxins in food