Blocker™ Soil Fungicide

For control of certain soil-borne diseases on cotton, beans, crucifers (cabbage, cauliflower, brussels sprouts, broccoli), peanuts, potatoes, turf, ornamental, and bedding plant uses. Blocker is available in a flowable, wettable powder, and granule formulation.

Popular Blocker Uses:

Potatoes:

Labeled

Rhizoctonia (at planting)

Under Evaluation

White Mold (Sclerotinia- post plant), Scab, Silver Scuf, Powdery Mildew

Use Blocker in conjuntion with a seed treatment. While a seed treatment protects the seed piece, Blocker protects the soil in the tuber zone. Application methods for potatoes: In furrow, apply Blocker 10G at a rate of 25 lbs to an 8-inch band (34 inch row) using a gandy box or similar equipment. Or, apply Blocker 4F at a rate of 5-10 pints per acre. Placement is critical! Blocker must be placed above and around the seed piece where the tubers form. Under evaluation: For control of white mold, 1 pint Rovral with 3 pints Blocker was evaluated in 1999. Further details coming soon.

Silver scurf data: OSU

Scab data:

Midwest commercial trials

Beans:

Rhizoctonia (at planting),
White Mold (Sclerotinia- post plant)

Bulbs & Ornamentals:

White Mold

Additional Blocker™ Information: