Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.
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PFR-97 20% WDG is a microbial insecticide containing the active ingredient Isaria fumosorosea Apopka Strain 97 (20%). This entomopathogenic fungus is used to control various insect and mite pests, including whiteflies, aphids, thrips, spider mites, leafminers, mealybugs, psyllids, and plant bugs, as well as soil-dwelling pests like black vine weevils, rootworms, and various larvae. It is suitable for use on vegetables, fruits, tobacco, herbs, spices, melons, strawberries, and other food crops. The product can be applied in greenhouses, mushroom houses, and for outdoor-grown crops. Application methods include foliar sprays, soil drenches, soil surface sprays, chemigation, and soil injection. For greenhouse use, it can be mixed at a rate of 14 to 28 ounces per 100 gallons of water. For outdoor crops, apply 1 to 2 pounds per acre. When using for soil applications, follow specific rates for drenching or injection based on pot size or area. Note that this product is OMRI listed for organic production. Always maintain agitation during application. Store the product refrigerated at 39-40°F and use within 30 days of opening.
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| whiteflies, aphids, thrips, spider mites, leafminers, mealybugs, psyllids, plant bugs | Indoor | 14 to 28 | ounces | per 100 gallons of water | Use pressurized spray equipment; higher rates (24-28 oz/100 gal) for large/dense canopies. |
Drench: 4 fl oz per pot up to 6" diameter; 8 fl oz for pots up to 12" diameter; 1 pint per pot for larger than 12".
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| mushroom (sciariid) flies, Phorid flies | Indoor | 1 to 2 | pounds | per 1,000 square feet of bed surface | Broadcast and incorporate dry; may be mixed with 25 lbs gypsum per 1,000 sq ft. |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| mushroom (sciariid) flies, Phorid flies | Indoor | 1 to 2 | pounds | per 1,000 square feet of bed surface | Mix into casing material. |
| Target pest | Location | Rate | Unit | Dilution | Label notes |
|---|---|---|---|---|---|
| whiteflies, aphids, thrips, spider mites, leafminers, citrus leafminers, mealybugs, psyllids, plant bugs | Outdoor | 1 to 2 | pounds | per acre | Use pressurized spray equipment; higher rates (2 lb/acre) for large/dense canopies. |
Soil drench: 4 to 8 inch banded drench or coarse spray; or broadcast drench/spray at base of plant.
| For pests | Location | Label notes |
|---|---|---|
| Greenhouse pests | Indoor | Mix 14 to 28 oz per 100 gallons of water. Agitate 20-30 minutes. Can be metered into chemigation system. |
| Mushroom flies | Indoor | Can be pre-mixed with 5 gallons of water per pound of product and agitated continuously. |