White Growth On Cactus. They move slowly and often appear first low on the leaf surface in the dark warm moist areas near the center stem of the cactus. This plant comes from the mountains of Brazil and unlike the typical desert cactus it grows in a cascading shape.
The white stuff on your cactus is most likely a mealybug cochineal insect infestation. Large stands of this cactus still exist but many have been destroyed as land has been. The species within this genus are flattened to globose in shape with stems that hardly exceed 3 inches 75cm in height and are less than 10 inches 26 cm in diameter.
The old lady cactus a type of powder puff cactus is covered with spines and white down hence its name.
Give your Christmas cactus bright but indirect light. Just be careful about the milky white sap it secretes as it can cause irritation and toxic if ingested. With the findings above. Cactus seeds are a farming seed that can be used to grow cacti.