What's eating my bulbophyllum longissimum?

Bulbophyllum longissimum, prized for its dramatic long-tasseled flowers, is grown indoors or in a warm greenhouse and is most commonly bothered by spider mites exploiting warm, dry conditions. Mealybugs and scale inhabit pseudobulb crevices. Because this species demands warm humidity, maintaining that environment also limits pest outbreaks when plants are otherwise healthy.

Fine webbing and pale bronze stippling on leaf surfaces; especially problematic in dry heated rooms Maintain 60%+ humidity, apply neem oil or insecticidal soap spray, repeat every 5–7 days

Fluffy white colonies between pseudobulbs and along rhizomes; honeydew and sooty mold can follow Spot-treat with rubbing alcohol; apply diluted neem oil across the whole plant weekly

Hard brown bumps on pseudobulbs and stems; weakens the plant over time without visible webbing Manually remove with a soft brush; treat with horticultural oil spray and monitor monthly