A website for gardeners has put out an article on how to treat Phyllosticta fungus infections in prickly pear cacti. This spores of this fungus land on the pads and feed on it, causing spots to appear. The spots are about one to two inches wide. They are dark. The infection usually happens during humid weather. Once the weather dries up, the fungus becomes inactive. The leaves grow calluses over the spots. The article states the cactus does not die from the attack. The gardener is advised to remove and dispose of the infected areas.
- A cactus could unlock a new treatment approach against fungus. They are known for being tough plants that have nutrients in them.
- Research is focused on what treatments can be applied. The cactus is a particular plant species that is relatively rare too.
- Prevent damage to pads by applying the treatment as needed. That will prevent the growth of fungus in the first place.
“There is no recommended treatment for Phyllosticta fungus, but it can spread to other ornamental plants and removal of infected pads and plant material is suggested to prevent the disease from reaching other species.”
Read more: https://www.gardeningknowhow.com/ornamental/cacti-succulents/prickly-pear/prickly-pear-phyllosticta-fungus.htm