Mealybugs are soft bodied, scale-like insect which is described as looking like a woodlouse covered in flour. In fact they are covered with a powdery mealy waxy secretion. These sap feeding insects are a troublesome pest of indoor or glasshouse plants. Cacti and succulents are often affected but they can be seen on many other indoor/conservatory plants ie orchids and bougainvilleas where they can remain active all year. Product Solution: Provado Ultimate Bug Killer Aerosol2.