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Canna virus

Symptoms

Canna leaves develop pale spots and streaks, as well as a distorted, crinkly look, while flowers may also become distorted and exhibit white patches.

Find it on: cannas
Time to act: early summer

Overview

A viral infection, for which, sadly, there is no cure. Some cannas seem able to shrug it off, but it has the potential to spread quickly from plant to plant, so it's best to remove and dispose of affected individuals at the first sign of trouble. It's not confirmed how the virus is spread, but sap-sucking insects, nematodes and gardening tools, such as pruning knives, are likely contenders.


Solution

Canna leaves develop pale spots and streaks, as well as a distorted, crinkly look, while flowers may also become distorted and exhibit white patches.

Organic

Remove and dispose of affected plants in the rubbish bin, not the compost heap. Prevent spreading the infection between plants when pruning or trimming by wiping the blades of pruning knives with methylated spirits.




Discuss this problem

Talkback: Canna virus
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shahwon 24/11/2011 at 15:29

I am an Organic Gardener, treating plants with Herbs & Spices
Your problem, it appears lack of iron, just place a rusty nail
2/3 inches deep in the soil, a feet away from the plant keep moist.
I feel it should work

r.townsend357 24/11/2011 at 15:29

DEAR SIR I HAVE A EUCALYPTUS TREE AND LOTS OFTHE LEAVES ARE TURNING BROWN AND DROPPING OFF DO YOU WHAT IS MAKING DO THAT. YOURS ROGER