Troubleshooting
Manica Cycad problems — and how to fix them
Manica Cycad (Encephalartos manikensis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Manganese deficiency
New fronds emerge with yellowing between the veins (interveinal chlorosis), especially in alkaline conditions. Apply chelated manganese as a foliar spray or soil drench. Keep substrate pH below 6.5 to maintain nutrient availability.
Crown rot in low temperatures
Cold, wet winters are the primary risk for this subtropical species. Temperatures below 8°C combined with moisture at the crown cause rapid rotting. In temperate climates, overwinter under glass, keep almost completely dry, and protect the crown from frost.
Cycad aulacaspis scale
This devastating armoured scale (Aulacaspis yasumatsui) can kill a plant within months if untreated. White encrustation appears on fronds and the trunk. Treat aggressively with repeated horticultural oil applications and systemic insecticides; remove and destroy heavily infested fronds.
Prevent manica cycad problems before they start
Most manica cycad issues are care-mismatch, not bad luck. Dial in the basics:
Looking for manica cycad in general rather than its problems? Read the full manica cycad care guide — light, water, soil and feeding.
Manica Cycad problems — FAQ
Why is my manica cycad manganese deficiency?
New fronds emerge with yellowing between the veins (interveinal chlorosis), especially in alkaline conditions. Apply chelated manganese as a foliar spray or soil drench. Keep substrate pH below 6.5 to maintain nutrient availability.
Why is my manica cycad crown rot in low temperatures?
Cold, wet winters are the primary risk for this subtropical species. Temperatures below 8°C combined with moisture at the crown cause rapid rotting. In temperate climates, overwinter under glass, keep almost completely dry, and protect the crown from frost.
Why is my manica cycad cycad aulacaspis scale?
This devastating armoured scale (Aulacaspis yasumatsui) can kill a plant within months if untreated. White encrustation appears on fronds and the trunk. Treat aggressively with repeated horticultural oil applications and systemic insecticides; remove and destroy heavily infested fronds.