Being a predator Cryptolaemus prefers quite high levels of mealybug.
Cryptolaemus is only suitable for use in a greenhouse or conservatory.
Cryptolaemus is a strong flier so if lots of vents and doors are left open near to the treated plants they need to be netted over to prevent the Cryptolaemus from escaping.
Cryptolaemus should be released on the day of receipt, preferably in the cooler part of the day.
Cryptolaemus need the woolly egg masses of mealybugs in which to lay their eggs. Species that do not produce these may not be controlled. They will not control root mealybug.
Cryptolaemus work best in the summer and require a temperature of at least 20ºC (68ºF) for a few hours a day, good levels of sunlight are required.
Cryptolaemus prefer landing on bushy, leafy plants and may be less effective on climbers and cacti.
Like all Defenders biological controls, Cryptolaemus is harmless to children, pets and wildlife and will not become a pest in its own right.