Any fungal problem can be addressed with cornmeal. Soak some horticultural cornmeal in warm water for a couple hours. You can put the cornmeal in some old pantyhose or cheesecloth and swirl it around in the water from time to time while it is soaking. Put the cornmeal water in a spray bottle or watering can and spray it on the leaves. You can also put the horticultural cornmeal in the soil around the plants. Try to keep the soil around the cannas from being too moist.
_________________ Nadine Bielling Moderator Gardener Exchange Forum
The Laws of Ecology: "All things are interconnected. Everything goes somewhere. There's no such thing as a free lunch. Nature bats last." --Ernest Callenbach
|