What's eating my lycaste cruenta?

Lycaste cruenta, a deciduous Central American orchid, is most threatened by spider mites on its large pleated leaves during warm, dry periods. Mealybugs target pseudobulb bases during the dry rest phase, and scale insects may colonise stems. Aphids occasionally attack tender new growth and flower spikes in spring.

Pale stippling, silvery sheen, and fine webbing on the broad pleated leaves; heavy attacks cause premature yellowing and leaf drop Increase humidity and air circulation; spray with insecticidal soap or neem oil covering both leaf surfaces; repeat weekly for three to four weeks.

White cottony deposits at pseudobulb bases and under dry leaf sheaths during dormancy; ants attracted to honeydew Remove leaf sheaths at repotting to expose colonies; treat with isopropyl alcohol swabs and neem oil drench.

Brown oval bumps on pseudobulbs and stems; weakened plants, reduced flowering Scrape off with a toothbrush; apply horticultural oil spray; repeat every two weeks until clear.

Soft green or black insects clustering on new leaf growth and flower buds; leaves may curl or distort Blast off with a water spray; apply insecticidal soap or neem oil; introduce ladybirds in greenhouse settings.