Cryptolaemus montrouzieri
Cryptolaemus montrouzieri

Cryptolaemus montrouzieri

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Orders placed on Wednesday before 12 pm PST will deliver Wednesday and Thursday of the following week. For expedited shipping times, please contact or call (707) 301-4275. 

Cryptolaemus montrouzieri, also known as the Mealybug Destroyer, is a predatory beetle that feeds on Mealybugs and Mealybug relatives, as the name would imply, as well as aphids and whitefly. One beetle can consume over 200 Mealybugs in a lifetime, making it an integral part of an IPM plan for Mealybugs. Both the larvae and adult beetle are predacious.

Working conditions
Temperature: 60-95 F
Humidity: 70+

The information given below is merely indicative. Tailored advice can be provided if information is available on the local factors that need to be taken into account, such as the crop, the climate conditions and the level of infestation. For the correct approach, please consult a Shale Peak Horticulture specialist.


light curative

heavy curative









Interval (days)











introduce in infested areas only


  • Apply it on rock wool slabs for general introduction, or in BugBoxes close to or at a hotspot
  • Place among infected leaves
  • Apply in the evening or early morning

Biological beneficials have a very short life expectancy and therefore need to be introduced into the crop as soon as possible after receipt. Failure to do so can have a negative impact on their quality. In case you do need to store the product, please follow the instructions below. Shale Peak Horticulture LLC is not liable for any loss of quality if the product is stored for longer and/or under different conditions than recommended.

  • Storage after receipt: 1-2 days
  • Storage temperature: 10-15°C/50-59°F
  • In the dark


  • Only use products that are permitted in your country/state and crop. Check local registration requirements.
  • Shale Peak Horticulture, LLC  cannot be held liable for unauthorized use.
  • Shale Peak Horticulture, LLC  is not liable for any loss of quality if the product is stored for longer than recommended and/or under incorrect conditions.