Pest identification
What's eating my golden torch cactus?
Mealybugs
Signs: White woolly deposits tucked among the spines and in rib grooves; weakened growth and yellowing.
Control: Dab individual colonies with 70% isopropyl alcohol; treat the whole plant with neem oil spray weekly.
Scale insects
Signs: Flat brown bumps along the ribs; honeydew and sooty mold on the stem surface.
Control: Scrub off with a toothbrush dipped in rubbing alcohol; follow with insecticidal soap every 10 days.
Spider mites
Signs: Fine webbing and faint stippling across the green stem between spines, usually in low-humidity environments.
Control: Wipe stem with a damp cloth, improve ventilation, and apply neem oil or a miticide spray.
Keep golden torch cactus pest-free
Healthy plants resist pests best. Get the basics right:
Golden Torch Cactus pests — FAQ
What is eating my golden torch cactus?
Golden Torch Cactus (Echinopsis spachiana) is a tall columnar cactus best grown indoors or in a frost-free garden. Indoors, mealybugs are the top threat, hiding in the dense golden spines. Scale insects and spider mites also strike in dry rooms. Outdoors in warm climates, cochineal scale (a bright-red mealy insect) can colonize the ribs.
How do I get rid of mealybugs on golden torch cactus?
White woolly deposits tucked among the spines and in rib grooves; weakened growth and yellowing. Dab individual colonies with 70% isopropyl alcohol; treat the whole plant with neem oil spray weekly.
How do I get rid of scale insects on golden torch cactus?
Flat brown bumps along the ribs; honeydew and sooty mold on the stem surface. Scrub off with a toothbrush dipped in rubbing alcohol; follow with insecticidal soap every 10 days.
How do I get rid of spider mites on golden torch cactus?
Fine webbing and faint stippling across the green stem between spines, usually in low-humidity environments. Wipe stem with a damp cloth, improve ventilation, and apply neem oil or a miticide spray.