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RootShield WP Biological Fungicide

Usually Ships in 1-2 days
Protect roots for up to three months with RootShield WP Biological Fungicide. This highly effective, wettable powder blocks and attacks pathogens before they can cause root damage, ensuring productive plant growth. RootShield WP starts working within 24 hours and is a cost-effective product for protecting roots when they're most vulnerable. RootShield WP is OMRI LIsted

Features and Specifications

Active Ingredient(s) Trichoderma harzianum, strain T-22
Weed Killer Pythium, Rhizoctonia, Fusarium, Cylindrocladium and Thielaviopsis
Sale Prohibited AK
Shipping Rate Free
EPA Registration 68539-7

How RootShield WP Works

RootShield WP Biological Fungicide contains a hybrid fungus known as Trichoderma harzianum, or strain T-22. This OMRI Listed powerful strain kills everything from Pythium to Fusarium, keeping roots protected while the plant grows and matures. It mixes easily with water and keeps protecting the roots for up to 12 weeks.


Applications for Use

Use RootShield WP Fungicide to prevent fungi and other pathogens from damaging edible crops and ornamentals. It works on outdoor crops and indoor container plants, including herbs and plants that are grown in:

  • Aquaponics
  • Greenhouses
  • Grow rooms
  • Orchards
  • Plant nurseries
  • Vineyards


How to Use RootShield WP Fungicide

Apply RootShield WP Fungicide as a soil drench or a spray using a low-pressure nozzle. It also applies easily with boom sprayers, sprinklers and sub-irrigation systems. Use 4-5 ounces per 100 gallons of water or 1-2 tablespoons per 5 gallons of water depending on the crop. Continual irrigation is required during the entire application. Refer to the label for crop-specific instructions.


Benefits of RootShield WP Fungicide

  • Grows directly on the roots and shields them from damaging fungi
  • Protection for up to 12 weeks with just one application
  • Mixes easily with water
  • Useful for drench applications in greenhouses and nurseries
  • Releases fungi-killing enzymes and promotes healthy root systems
  • Can be used with some pesticides and a 0-hour REI


Protect Plant Growth With RootShield WP Fungicide

Prevent fungi from damaging your plants with RootShield WP Fungicide. Use it to stop pathogens from destroying crops both indoors and outdoors. One application continues to work for up to three months and encourages a healthy root system.


It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulations.


For additional information on this product please reference the CDMS label database listed below



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