Christmas Cactus White Fungus
As the tissue dies it becomes tan and falls away removing tissue from the.
Christmas cactus white fungus. Informational table showing disease name symptoms pathogen cause and management of christmas cactus diseases. Each of the six christmas cactus species produces a different colored bloom with red being the most common. Make sure that you actually rub the fungus off the cactus when you are applying the rubbing alcohol. In many cases fungus on cacti is accompanied by secondary infections of mealy bugs or gnats.
You can scrape off this top layer and replace it with fresh potting soil if you like. At the soil line a brown spot forms. Swab the fungus with rubbing alcohol. Christmas cactus diseases also include botrytis blight and impatiens necrotic spot virus.
Use a sterile knife to take the cutting and dust. White spots on my christmas cactus. As with all cacti and succulents the christmas cactus is susceptible to disease. Rot is sometimes a fungus eating up the dead plant tissue but in that case something else triggered the start of tissue death.
Potting soil should be replaced when there is an infestation of fungus gnats because their larvae grow in the soil. If damage isn t severe a fungicide spray can usually help. The rubbing alcohol will kill these invaders as well as weakening or killing the fungus. A christmas cactus plant with a heavy infestation of pests may need to be discarded.
Once there is a fungus affecting your cactus it can be difficult to stop. Fungus gnat larvae look like white worms with black heads and are around 4 mm in length. Save for later print. Disease symptoms pathogen cause management.
In a true fungal attack there is a fungus growing inside the plant tissue that kills it as it goes. Like pieces of holiday candy the brilliant red white or pink trumpet flowers of christmas cactus schlumbergera spp bring midwinter cheer just as winter. If the plant is rife with lesions it may be best to find some uninfected healthy material and start a new plant with a cutting. Christmas cacti speckled with tiny white or pale yellow spots and shrouded with white webs harbor red.
Because of fungus gnats cactus stop flowering becomes weak and stops growing. Schlumbergera commonly referred to as christmas cactus derives its common name from its winter bloom period. Larvae feed on organic matter in the soil as well as roots of the cacti. Other diseases of christmas cactus.
How to treat fungus on cactus. Aphids soft brown scale and spider mites are sometimes dislodged with a forceful spray of water. Botrytis blight suspect botrytis blight also known as grey mold if the blooms or stem are covered with silvery gray fungus. This is what makes it turn brown and dry.
Cut away any infected leaves with a clean razor blade.