Sequoiadendron Blight Issues
A while back the USDA came to my house to test some plants for Sudden Oak Death because I purchased some rhodies and azaleas from Greer Gardens this spring. While I still don't have results from the samples they took, I did walk around with the USDA representative and showed her my Giant Sequoia and why I was concerned about it. Ever since its first summer, it would have some brown out of the needles, which I read was somewhat normal for east coast specimens so I didn't think much of it. This summer however, many of the stem tips have seemed to wilt and lose their green color and I've lost 6 branches so far. She took a few samples and just got back to me with the diagnosis today. It's Cercospora Sequoiae aka cercospora blight. I've been reading up on it and it seems like the only thing I can do is to spray with a copper fungicide every 7-10 days June through September during the growing season. I can do this now while it's only 10' tall but once it gets bigger, this is going to be a problem. Now I was hoping to enlist some of you opinions to see whether it was worth the work in keeping it alive or start thinking about a replacement tree.