Larvae ProBtk is a biological larvicide which includes the beneficial bacteria, Bacillus thuringiensis subspecies kurstaki (Btk) strain SA-11. This is used for the suppression of Lepidoptera larvae as specified.
Larvae ProBtk is one of the first commercialized and most successful biocontrol products globally – A beneficial soil bacteria highly adaptive to different environments.
Each Larvae ProBtk cell produces a unique protein (Crytoxin). When ingested by the pest larvae, this protein causes the pest to stop eating and ultimately die.
The Larvae Pro is the yin, to your yang. You've found what you're looking for.