What works best against Fungus gnats?
• Distance sprays work well. They are safe if applied not more than every 4 weeks. Sprenches and drenches can cause problems on poinsettias. • Duraguard at 25 oz. per 100 gal works very well but is expensive. Do not apply if using Oasis. • Drenches with Nemasys, Nemashield or other Steinerema feltiae products work very well and are more economical than Duraguard. • A drench with Hypoaspis predacious mites work well if applied 2 weeks after a Steinerema feltiae drench.
