What's eating my anguloa clowesii?

Anguloa clowesii (the tulip orchid) is a large cool-to-intermediate species that goes partially deciduous in winter, leaving pseudobulbs exposed to scale and mealybug attack. Slugs are a real risk to its spectacular emerging new growths and flower buds in cool greenhouse conditions. Inspect pseudobulbs during dormancy.

White woolly colonies at pseudobulb bases and inside decaying leaf sheaths; weakened and yellowing growth Remove with isopropyl alcohol on a swab; spray neem oil or insecticidal soap every 5–7 days for four weeks

Hard tan or brown bumps on pseudobulbs; sticky honeydew promotes sooty mold and leaf disfigurement Scrub off manually with a soft brush and alcohol; apply horticultural oil during winter dormancy and repeat monthly

Large irregular holes chewed in emerging new growths and flower buds; silvery slime trails visible Hand-pick at night; place ferric phosphate pellets around base of pots; line greenhouse benches with copper tape