Skip to content
On-site pickups can now be placed online, but please call us to schedule a pickup time.
On-site pickups can now be placed online, but please call us to schedule a pickup time.

Howler Fungicide - 25 lb

  • Organic Status - OMRI Listed


Howler is a novel biofungicide (Pseudomonas chlororaphis strain AFS009), effective on a wide range of soil-borne and foliar diseases, including Rhizoctonia, Pythium, Fusarium, Phytophthora, Sclerotinia, Colletotrichum, and Botrytis. Howler works through multiple modes of action: producing antibiotics that directly attack pathogens; producing enzymes that break down the cell walls of fungi and prevent attachment of spores to leaves, and inducing plant resistance to inhibit fungal growth. Howler can be used effectively at every phase of production: greenhouse through harvest and post-harvest. To enhance performance, consider adding a surfactant that is known to be safe to the target crop to the spray tank to improve penetration and coverage of above-ground portions of the plant. For additional uses, please see the Howler Label. A companion product to Theia.

4-hour re-entry (REI); 0-day pre-harvest interval (PHI); residue exempt; FRAC Group BM02.

Check to make sure product is registered in your state. Click here for links to check product registration.

Foliar or Soil Drench: 2.5 - 7.5 lbs/acre in sprays, 2.5-7.5 lbs per 100 gallons of water in soil drenches. Repeat at 5 - 14 day intervals as needed.
Seed Treatment: 0.25 - 7.5 lbs/100 lbs of seed

Sold out
Original price $313.00 - Original price $313.00
Original price
$313.00 - $313.00
Current price $313.00

Honest Shipping, from our farm to yours


Not hiding shipping costs keeps it fair for everyone


Supplying farmers locally and nationally since 1990


Orders are packed and shipped quickly, accurately and with care