Troubleshooting
Wampee problems — and how to fix them
Wampee (Clausena lansium) 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.
Citrus pests
As a Rutaceae relative, wampee can host aphids, scale, citrus leafminer and sooty mould; monitor new growth and treat with horticultural oil as needed.
Fruit drop and splitting
Irregular watering, especially heavy rain after drought, causes fruit to drop or split; keep soil moisture even through the fruiting period.
Brittle branches
Heavy fruit clusters and wind can snap the relatively brittle wood; thin crowded fruit and stake or shelter young trees in exposed sites.
Frost damage to young trees
Though more cold-hardy than most tropicals, young wampee can be damaged by hard frost; protect or container-overwinter plants in marginal climates.
Prevent wampee problems before they start
Most wampee issues are care-mismatch, not bad luck. Dial in the basics:
Looking for wampee in general rather than its problems? Read the full wampee care guide — light, water, soil and feeding.
Wampee problems — FAQ
Why is my wampee citrus pests?
As a Rutaceae relative, wampee can host aphids, scale, citrus leafminer and sooty mould; monitor new growth and treat with horticultural oil as needed.
Why is my wampee fruit drop and splitting?
Irregular watering, especially heavy rain after drought, causes fruit to drop or split; keep soil moisture even through the fruiting period.
Why is my wampee brittle branches?
Heavy fruit clusters and wind can snap the relatively brittle wood; thin crowded fruit and stake or shelter young trees in exposed sites.
Why is my wampee frost damage to young trees?
Though more cold-hardy than most tropicals, young wampee can be damaged by hard frost; protect or container-overwinter plants in marginal climates.