Cryptolaemus for Mealybug
Mealy Bug is a conservatory and greenhouses pest where it produces sticky honeydew which drips onto leaves and allows sooty mould to grow. The pest also produces distinctive white wool. Control Mealy Bug by introducing Cryptolaemus larvae.
Mealy Bugs feed by sucking the sap from the plant (excess sap is excreted as honeydew which forms a sticky deposit on the lower leaves), so they will normally be found on the stems or leaf joints although they will attack leaves causing them to yellow. Mealy Bug lays it eggs in cotton like pouches resulting in "white wool" developing (pictured). Control mealy bug by introducing cryptolaemus larvae AS SOON as you see mealy bug and the temp is 16C/61F.