Fungus Gnats in Orchid Bark: Repotting Eliminates Them

Kristin's 3–6 month Phalaenopsis had tiny silver/white bugs in bark; new sprouts died. Expert: fungus gnats—harmless but indicate degraded mix (damp, soil-like). Repot in soaked fir bark mix. Remove plant, discard old mix, rinse roots, cut mushy roots. Pot size = slightly larger than healthy root mass. Clear plastic pot ideal. East window, morning sun. Water weekly after repotting. Fresh mix eliminates gnats.