How can I remove scale and prevent its return on outdoor ponytail plants? I have 2 plants for about 3 yrs that I repotted last year. They are doing great with virtually no care except for a re-occuring scale problem. Should I fertilize with osmacote or similar?
Ponytail Plant Scale Control
Certified GKH Gardening Expert
It is likely palm scale. Neem oil is a good treatment. These articles should help: