BioWorks RootShield PLUS+ Biological Fungicide — 1 lb Wettable Powder

RootShield PLUS+ is the next generation of BioWorks' flagship biological root disease control, now powered by two active ingredients — Trichoderma harzianum strain T-22 and Trichoderma virens strain G-41. This dual-strain formula provides 3 months of preventative control of major soilborne root diseases, including expanded activity against Phytophthora and improved suppression of aggressive hot-season Pythium (P. aphanidermatum).

One application protects roots for up to 12 weeks, reducing or eliminating the need for repetitive chemical fungicide drenches and lowering both material and labor costs.

Special Order Item — ships from the manufacturer at time of purchase. Shipping times may vary.

Key Features

• Active ingredients: Trichoderma harzianum T-22 + Trichoderma virens G-41
• Controls Pythium, Phytophthora, Rhizoctonia, Fusarium, Thielaviopsis, and Cylindrocladium
• Up to 12 weeks of root protection per application
• Improved suppression of hot-season Pythium aphanidermatum
• OMRI listed for organic production
• Wettable powder (WP) formulation — apply as soil drench
• Available in 1 lb, 3 lb, and 30 lb sizes; also available as granules

Use Sites

Greenhouse and nursery ornamentals, vegetables, herbs, and fruits. Compatible with hydroponic and soilless production systems.

Also available: RootShield PLUS+ Granules 10 lb and RootShield WP 1 lb. Browse more Beneficial Microbiology or return to Pest & Disease Controls.