WillRock Corn Box Defense CRW Advanced Planter Box Treatment

Per-acre cost based on one pail treating 50 units at 80,000 seeds per unit — about 125 acres at a 32,000 population.

You do not need liquid on the planter to protect a corn crop.

WillRock Corn Defense CRW puts two EPA-registered biologicals and a micronutrient-loaded seed fluency base into a single pail. Rootworm and soilborne disease get covered at planting, and seed flow and early nutrition come along with it — all in one pass at the planter. About $19.24 an acre, and one pail covers roughly 125 acres of corn.

This is the program for the grower running dry, watching seed cost, and facing moderate rather than severe rootworm pressure. It carries the same GuardX and Prephyte ST actives as Corn Pro CRW without the third biological, which is where the savings come from.

The biologicals ride in sealed Bio-Capsules built into the pail lid. You break them open at the planter, right before the product goes on seed. That matters more than it sounds — live microbes lose count sitting on a shelf pre-blended. Releasing them at the point of use means what’s on the label is what goes in the box.

What’s working for you

GuardX is an EPA-registered bioinsecticide that colonizes the root and stays with the plant all season. It activates the plant’s immune system to withstand abiotic stress and repels insects, with coverage against corn rootworm, fall armyworm, wireworm and root knot nematode.

Prephyte ST is a broad-spectrum EPA-registered fungicide for prevention, control or suppression of many soilborne diseases, plus free-living nematodes and abiotic stresses.

Underneath both, the base pail is an 80/20 talc and graphite seed fluency blend carrying iron, manganese and 1.35 lbs of IonLock Zinc. The zinc does double duty — it improves singulation and helps adhere the microbes to the seed coat, while delivering early emergence nutrition when the plant needs it most and the soil is least willing to give it up.

Why growers choose it

• Two EPA-registered biologicals in one pail — no separate products to stock or mix
• Rootworm coverage without a below-ground trait — GuardX establishes at the root zone at planting and stays with the plant
• Soilborne disease protection — Prephyte ST works on root and lower stalk rots, the diseases that cost the most bushels
• Free-living nematode suppression — included in the Prephyte ST label
• Live microbe count at the point of use — Bio-Capsules stay sealed until you break them at the planter
• Early nutrition built in — 4.00% water soluble zinc plus iron and manganese
• Better singulation — IonLock Zinc improves seed flow and holds microbes on the seed coat
• Works with a dry planter — no liquid system, no tank mixing, no additional trips

Coverage

Sold by the pail, two pails to a case. One pail treats 50 units of corn at 80,000 seeds per unit — roughly 125 acres at a 32,000 population, or about $19.24 per acre. A case treats 100 units.

How to apply

1. Remove the safety clips from the pail lid.
2. Push the buttons to release the biologicals into the pail.
3. Seal the pail.
4. Shake aggressively to blend.
5. Apply one scoop per 80,000-seed unit (single-row planters).

Shake aggressively before every application, not just the first one. The biologicals will settle. A pail that is not re-shaken between fills will not deliver an even rate across the field, and the last acres get shorted.

Do not activate the Bio-Capsules until you are ready to use the product. Store cool and dry, out of direct sunlight. Do not hold above 77°F for extended periods, and do not freeze.

Specifications

Guaranteed analysis

Derived from iron oxide, manganese oxide and zinc sulfate.

Biological components

Always read and follow label directions.