Troubleshooting
Keitt Mango problems — and how to fix them
Keitt Mango (Mangifera indica 'Keitt') 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.
Hard to judge ripeness
'Keitt' often stays green-skinned when ripe, so colour is a poor guide. Judge by a slight softening, full size and fragrance, and harvest before frost given its very late season.
Anthracnose
Wet, humid weather at flowering lets anthracnose blight blooms and spot fruit and leaves. Improve airflow, keep blooms dry and apply protective fungicide where pressure is high.
Cold and frost damage
Tender to cold; near-freezing temperatures damage growth and can kill young trees, and a very late crop risks being caught by autumn cold. Protect under glass or bring containers in below about 10°C.
Powdery mildew on panicles
Cool, damp spring conditions encourage powdery mildew on flower panicles, causing bloom drop and poor set. Ventilate well and treat at first sign to protect the crop.
Prevent keitt mango problems before they start
Most keitt mango issues are care-mismatch, not bad luck. Dial in the basics:
Looking for keitt mango in general rather than its problems? Read the full keitt mango care guide — light, water, soil and feeding.
Keitt Mango problems — FAQ
Why is my keitt mango hard to judge ripeness?
'Keitt' often stays green-skinned when ripe, so colour is a poor guide. Judge by a slight softening, full size and fragrance, and harvest before frost given its very late season.
Why is my keitt mango anthracnose?
Wet, humid weather at flowering lets anthracnose blight blooms and spot fruit and leaves. Improve airflow, keep blooms dry and apply protective fungicide where pressure is high.
Why is my keitt mango cold and frost damage?
Tender to cold; near-freezing temperatures damage growth and can kill young trees, and a very late crop risks being caught by autumn cold. Protect under glass or bring containers in below about 10°C.
Why is my keitt mango powdery mildew on panicles?
Cool, damp spring conditions encourage powdery mildew on flower panicles, causing bloom drop and poor set. Ventilate well and treat at first sign to protect the crop.