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Q.What Is This White Stuff On My Cactus?

Zone Boston, MA | sohyek added on October 4, 2021 | Answered

What is this white stuff growing on my cactus and what do I do to treat it?

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Answered on October 5, 2021

Possibly a cochineal scale infestation. You can usually remove the infestation with a good spray of water (outside with a hose but be careful not to use too much pressure and damage the cactus) and-or some insecticidal soap but a persistent infestation may require using an insecticide.

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