One of my EE has what appears to be many small "windows" (spots in the leaf that are transparent, but not holes) in the leaves.
The spots are totally clear (no colored margins), about 1 mm in diameter. All leaves are showing signs, but the plant is happily pupping and leafing.
What is causing it? Any cure? Does it spread rapidly?
This is the EE that I moved to the office due to suspected viral infection....Poor plant.
ROX
Small "windows" in EE leaves
Dunno, but some where on the lilly forum there is a couple of threads about the same thing on Calla Lilly. Not sure if its a related issue.
As far as I know (and I am no expert) the virus in cannas that can be transferred to eears causes streaking and discoloration, and ultimately dengeneration and death, but nothing like your description. I had a canna virus scare last year, which I was able to chalk up to nutrient deficiency, as the plants recovered quickly after fertilizing with blood meal. Maybe some type of nutrient deficiency?
If the spots are round you may have two different possibilities. One would be a chemical burn or heat burn. This is usually were some kinds of chemical has caused parts of the leaf to deteriorate. Another cause would be a fungus attack checking the underside of the leaves you may notice some discoloration around the circle. With either case I would use a foliage fungicide to help prevent or get rid of the problem. If the leaves are covered removing the leaves maybe best.
They are perfectly round and there is no discoloration on the underside of the leaf.
Any recommendations for a good foliage fungicide? I know EE leaves can be sensitive to chemicals.
ROX
I try to garden organically, and have found the natural remedies produce fine results.
Recipe for natural fungicide calls for:
1 1/2 tablespoons baking soda
1 gallon water
They say a few drops of insecticidal soap, but I use plain ol' dish soap.
Might not hurt to sprinkle a little corn meal around the base if you think fungus is the problem. Corn Meal rescued a Windmill Palm I nearly killed last year. The whole crown had rotted out but came back to life after the corn meal.
Hope this helps
What you've described is often a tell-tale sign of thrips (though I've no idea if thrips are known to infest EE's)....any chance it could be?