Marrone Bio Innovations Grandevo WDGGrandevo uses the bacterium Chromobacterium subtsugae strain PRAA4 1T to provide long lasting, broad spectrum control of sucking and chewing insects. Grandevos mode of action is multi faceted; it is toxic to insects and mites when ingested, reduces reproduction rates and repels pests after application. This OMRI listed and NOP compliant organic pesticide miticide can be a valuable part of any IPM (Integrated Pest Management) program. Simply mix with