The newest growth on my Blc Cherry Suisse has these black raised bumps and also the base of the leaf where it is emerging from the sheath shows a spot of rot. The bumps are about 1/8 inch in diameter. None of the other leaves on the plant show this. Not knowing what it is I sprayed with 1% copper octanoate. Any ideas as to what this is?
Last edited by DavidCampen; 12-10-2012 at 10:02 AM..