Q.Plant issue
Hi,
Would you please tell me what the whitish sticky stuff on my desert rose? How can I get rid of it? Please advise.
Thanks
Lespoir

It looks like an infestation of Scale or Mealy Bug.
Neem Oil can be used to treat your plant.
Here are some links with more information.
https://www.gardeningknowhow.com/ornamental/flowers/desert-rose/caring-for-desert-rose-plants.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm