Q.Why Is My Madagascar Palm Turning Yellow?
I saved my Madagascar palm trees 3 years ago from Near Death out of a plant Salvage bin they have always been very healthy and have grown from 5 in to 3 ft lately they have developed yellow spotting about 2 to 4 in in diameter the leaves are green healthy and flourishing it\\\\\\\\\\\\\\\’s just the yellow spots on the palm itself.
Certified GKH Gardening Expert
It does appear to have contracted an infection. I would treat with wettable sulfur, since it will acidify the soil while killing the disease. These succulents will be very sensitive to overwatering, so be sure that it does dry out well between.
Other fungicides may be used, but may not serve the same purposes as sulfur, which can be used in lime form as well.
https://www.gardeningknowhow.com/plant-problems/disease/using-lime-sulfur-in-gardens.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/side-dressing-with-sulfur.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/sulfur-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/houseplants/madagascar-palm/madagascar-palm-care.htm
