Residents warned after toxic mushrooms detected

A surge in mushroom poisonings and the return of the lethal death cap fungus has health experts urging people to steer clear of wild fungi.

A deadly mushroom with no known antidote has been found growing in parts of NSW, prompting urgent warnings from health authorities.

Amanita phalloides, commonly known as death cap mushrooms, have recently been identified in Sydney, the Southern Highlands and southern NSW.

NSW Health is urging residents not to pick or eat wild mushrooms, warning that even a small amount of the highly toxic variety can be fatal.

NSW Poisons Information Centre senior specialist Genevieve Adamo said consuming even a small amount could be fatal.

“Symptoms of mushroom poisoning can sometimes be delayed, but early treatment is vital to health outcomes,” Ms Adamo said.

“Initial symptoms may include vomiting and diarrhoea, but in severe cases, it can lead to liver and kidney damage or even death.”

Last year, 23 people were hospitalised in NSW due to mushroom poisoning, including two children under the age of five.

The NSW Poisons Information Centre also responded to 363 calls related to wild mushroom exposure in NSW and the ACT in 2024, a 26 per cent rise on the previous year.

As of May 31 this year, 190 calls had already been received.

Botanic Gardens of Sydney chief scientist Brett Summerell warned that foragers should not trust their ability to identify edible mushrooms in the wild.

“There is no easy or reliable way to identify if a wild mushroom is edible or poisonous,” Professor Summerell said.

“Cooking poisonous mushrooms does not make them safe to eat.

“You should only eat mushrooms you buy from a reputable grocery store, supermarket or produce market.”

Health authorities say the risks are particularly high for young children, who may unknowingly put mushrooms in their mouths while playing outside.

“Watch your children when they are playing outside, especially around large trees in parks or your garden at home where mushrooms may grow,” Ms Adamo said.

“Remove any mushrooms that may grow to keep your children safe.”

NSW Health and local councils have been conducting ongoing surveillance since the initial detection of death caps in the region two years ago.

Anyone who suspects they or someone else has consumed a wild mushroom should immediately call the Poisons Information Centre on 13 11 26, even if symptoms are not yet present. In an emergency, call triple-0 or visit the nearest hospital emergency department.

If possible, bring a sample of the mushroom or a photo to assist with identification.

Originally published as Residents warned after toxic mushrooms detected