PRF-97 microbial insecticide 

PRF-97 microbial insecticide 

from 19.99

PFR-97 microbial insecticide contains a naturally occurring fungus that controls some of agriculture’s most devastating pests, including whitefly, aphid, thrips and spider mite.

Paecilomyces fumosoroseus, the active ingredient in PFR-97, is a naturally occurring fungus that infects several insect pests, including whitefly, aphid, thrips and spider mites. Under proper environmental conditions, spores of the fungus attach to and penetrate the cuticle of the insect pest. The fungus grows inside the insect causing its death. The fungus then emerges from the dead insect to release more spores to infect other insects.


Monitoring of pest pressure is critical to the effective use of PFR-97™. Efficacy results from germination and growth of the beneficial fungus over several days, so applications should start before pest numbers have reached crisis levels. PFR-97™ is most effective when application is initiated just before or at the first signs that target pests are present. Optimal Environmental Conditions: PFR-97™ is most effective when relative humidity is 80% or higher for 8-10 hours. Irrigating will increase humidity levels. Application at times of low air movement and moderate temperature (70-90°F) will reduce drying conditions and maintain the effectiveness of the fungus.

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