What's eating my catasetum orchid?

Catasetum orchids are deciduous and rest in winter with no leaves, making them vulnerable to thrips and spider mites during their active summer growing season when foliage is lush. Mealybugs colonise the large pseudobulbs. During dormancy, check stored pseudobulbs for mealybug eggs hidden under dry sheaths.

Silver-streaked, papery patches on broad leaves; tiny dark frass specks visible; flower buds may abort Apply spinosad or insecticidal soap during the active growing season; use blue sticky traps; improve air circulation

Cottony wax deposits at pseudobulb bases and under dry leaf sheaths; active during growth and dormancy Inspect pseudobulbs at repotting; remove sheaths; dab with isopropyl alcohol; apply neem oil before dormancy begins

Pale stippling on large leaves during the humid summer growing season if air stagnates Ensure good air movement; mist foliage in the morning; apply neem oil or insecticidal soap spray as needed