I'm not sure that the dark spots on the leaves are cedar apple rust.
Usually the spots are bright orange or yellow, sometimes having a dark spot
in the middle. Here's a link to a Wisconsin Extension publication with a
good picture of what the diseased leaves look like:
http://www.uwex.edu/ces/wihort/gardenfacts/XHT1009a.pdf . If the picture
doesn't match, check to see whether it's apple scab:
http://www.uwex.edu/ces/wihort/gardenfacts/XHT1007b.pdf.

As far as spraying for CA rust now, you won't cure what's already there, but
if it just started, you might be able to keep it from getting much worse.
If it's scab, other fungicides are more effective (listed in the factsheet
mentioned above).

Good luck!

Suzy O, Zone 5, Wisconsin


"meirman" wrote in message
...
Hi. I've got cedar apple rust and I've got Ferbam. Is there any
point to spraying Ferbam on the two apple trees if there are already
dark spots on the apple leaves?? A lot on one tree and a little on
the other which is a different variety.

I'll have to wash the apples extra well if they actually ripen, right?

I got confused and when I sall the spore balls with the tentacles on
the juniper? bushes about 3 weeks ago, I thought that meant this was
the year that my apple trees would be unaffected. There were only
about 6 spore balls, and I was tired and didn't get them off until 2
days after I saw them. If I'd gotten them off 10 minutes after I saw
them, would that have helped. I've had this problem for at least 5
years, and the apple trees lost some branches this season.

Meirman
--
If emailing, please let me know whether
or not you are posting the same letter.
Change domain to erols.com, if necessary.