BioWorks RootShield PLUS WP - OMRI Certified - 3 Pound (6/Cs)

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Brand: BioWorks
BioWorks RootShield PLUS WP is an OMRI (Organic Materials Review Institute) Certified product that is designed for...
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BioWorks RootShield PLUS WP is an OMRI (Organic Materials Review Institute) Certified product that is designed for use in organic farming and gardening. It is a biological fungicide and root protectant that helps prevent and control various soil-borne plant pathogens, particularly those that cause root rot and damping-off diseases. This product is suitable for use in a variety of crops and horticultural settings.

Key features and components of RootShield PLUS WP include:

  1. Active Ingredients: RootShield PLUS WP contains two beneficial fungal strains: Trichoderma harzianum T-22 and Trichoderma virens G-41. These beneficial fungi are known to be effective at suppressing various plant pathogens, such as Rhizoctonia, Pythium, Fusarium, and other harmful fungi that can attack plant roots.

  2. Dual-Mode of Action: The combination of Trichoderma harzianum T-22 and Trichoderma virens G-41 provides a dual mode of action, increasing its efficacy in protecting plant roots. These fungi act by parasitizing and colonizing the root zone, thereby preventing pathogenic fungi from taking hold.

  3. Easy-to-Use Wettable Powder (WP) Formulation: RootShield PLUS WP is formulated as a wettable powder, making it convenient for mixing and application. It can be applied as a soil drench or incorporated into potting media, which helps create a protective barrier around the roots of your plants.

  4. Organic Certification: This product is OMRI Certified, which means it meets the strict organic farming standards and can be used in organic production systems without compromising the organic integrity of your crops.

  5. Versatility: RootShield PLUS WP can be used on a wide range of crops, including vegetables, herbs, fruits, ornamental plants, and more. It can be applied during transplanting, seeding, or at any stage of plant growth where root diseases may be a concern.

  6. Sustainable and Environmentally Friendly: Using RootShield PLUS WP contributes to sustainable and environmentally friendly agricultural practices by reducing the need for synthetic chemical fungicides and minimizing the impact on non-target organisms.

By using BioWorks RootShield PLUS WP, you can help protect your plants from root diseases and enhance their overall health and vitality while adhering to organic farming practices. However, always follow the product label instructions for proper application and safety guidelines.

This Product Controls These Pests or Diseases: Pythium, Rhizoctionia, Fusarium, Thielaviopsis and Cylindrocladium.

We ship daily from Monday through Friday, and shipments are processed within 24-48 hours of cleared payment.
Orders placed over the weekend are processed on the next business day.

Free Shipping

Specific Vendors offer free shipping over a certain amount. This will be automatically applied during checkout.

Orders over $10,000 before tax qualify for free shipping!

Free Shipping only applies to domestic US (lower 48 states -- sorry, Alaska & Hawaii) shipments.

Shipping Rates

Shipping rates are calculated during checkout based on the weight, dimensions, and destination of the ordered items. We do our best to calculate the exact cost.

Updated 5/1/2023:

Please note that due to the higher shipping costs and larger dimensions of some of our products, our shipping calculator may not always provide an accurate shipping estimate. In these cases, we will reach out to you with an updated shipping quote after you place your order. If you have any questions about shipping costs, please don't hesitate to contact us before placing your order. We apologize for any inconvenience and appreciate your understanding.

Seres reserves the right to notify you of any additional shipping charges. We partner with multiple vendors and locations, which can alter shipping rates. In addition, there are conditions out of our control (rural areas, fuel surcharge, multiple shipments). If this occurs, you will be contacted immediately and have the right to modify or cancel your order for a full refund. 

Address Change / Order Cancellation

If you need to change the shipping address, please get in touch with us at or call 1-877-237-3754

Once the order is shipped, we will do our best to perform an address intercept. You will be charged an Intercept Fee imposed by the shipping carrier. This fee varies from each carrier. Please note not all shipping carriers will accept address intercept changes.

If an order is canceled in transit, you are solely responsible for all shipping charges incurred by the Shipping Carrier.

Shipping charges will not be refunded.


Once an order has been shipped, we will send an email and text message on file with the tracking number. If your order is fulfilled from multiple vendors or locations, you will receive shipment confirmations with tracking for each shipment. 

In addition, you can check the status of your order through the order confirmation email or within your profile page under Track Order.

Freight (LTL)

Scheduled appointments deliver freight shipments. You are responsible for inspecting for damage incurred in transit and signing before the driver leaves. DO NOT accept the shipment if there is any damage. If your freight shipment arrives damaged, contact us immediately.

Once delivered, we cannot reimburse paid freight charges or refund products.

Some restrictions may apply; Hawaii and Alaska do not qualify for free shipping offers.

Damaged Shipment

It rarely happens, but once in a while, products are damaged during Shipping. Therefore, please scrutinize all shipments for damaged or missing items before signing for them (if required).

The shipping carrier is responsible for items damaged during Shipping, which will most often be UPS, FedEx, or USPS. 

If assistance is needed, please get in touch with us immediately. Seres cannot promise refunds or replacements if this is not done within 72 hours. 

By signing your name and accepting shipment for a Freight(LTL) order, you get no reimbursement of freight charges, order costs, or any other charges incurred.

Lead Times

Please note that there is up to a 7-day processing period for orders containing Hawthorne products.


Due to the valuable contents of many products we sell,  the carrier may need a signature upon delivery. Please understand that this is a measure our company took to ensure safe delivery and fraud protection.

Third-Party Carriers will attempt to deliver a signature-required order three times. 

Please follow up with the carrier for assistance if a missed-delivery note is received.

If assistance is needed, please get in touch with us, so we can help contact the carrier. 

Shipping costs will not be refunded for missed shipments.

Seres is not responsible for any missing, lost, or stolen items.

At this time, we do not ship to post office boxes or APO/FPO addresses.  

For more information, please read our Terms of Service.

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