PRINCIPLE™ WP

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PRINCIPLE™ WP Superior Wettable Powder Formulation for Reliable Control of Pests PRINCIPLE™ WP harnesses the power of Beauveria bassiana to control multiple life stages of soft-bod ied and chewing insect pests, including whiteflies, thrips, aphids, mealybugs, and more. When spores contact a pest, they germinate and penetrate the cuticle, infecting the insect with white muscardine disease—leading to death within 24–96 hours. This next-generation wettable powder formulation offers improved mixability, low dust, minimal residue, and excellent compatibility with other biologicals and fertilizers. Suitable for use on food crops, ornamentals, turf, and cannabis/hemp, PRINCIPLE WP is a dependable biocontrol option for greenhouses, nurseries, and field applications. Active Ingredient: Beauveria bassiana strain BW149 KEY BENEFITS OMRI Listed for organic production Proven efficacy with over 20 years of biocontrol use No known resistance development 4-hour REI / 0-day PHI Excellent mixability and uniform suspension Compatible with most inputs Stable under room temperature storage SUGGESTED USES Effective for: Aphids, whiteflies, thrips, psyllids, mealybugs, beetles, weevils, and grasshoppers Indoor, greenhouse, nursery, and field-grown crops Drench, dip, foliar, or low-volume spray applications SUGGESTED APPLICATION Begin applications at first sign of pest activity Ensure full coverage on leaf surfaces (top and underside) Apply in early morning or evening to reduce UV exposure Preventative applications every 5–10 days; increase frequency under high pest pressure Mix only what is needed for same-day use STORAGE Store tightly sealed in a cool, dry place between 40°F–85°F. Keep unused product in original container. RESOURCES Principle Overview Principle SDS Principle Label Show more