I bought this obviously grafted Yucca from a local BBS, noting that there were some brown spots on the older looking leaves, but overall, it seemed okay, and I was in a rush, so I didn't examine it like I would an orchid.

I brought it home last weekend, watered it, and put it near the sliding glass door, where it receives very bright light most of the day. Today, I decided to trim it up and put it in a better looking cachepot. As I began trimming, I became more and more concerned (read "disgusted") that it was diseased, either insects (scale?) or some kind of fungal or bacterial infection.
It's had a severe haircut, but I don't know if that's sufficient and I don't know what to treat it with and I don't know whether it's too far gone to make it worth it.

I don't know yuccas, so I need input from some of you warmer climate members.

I've taken a bunch of photos, which I hope will help diagnose it. It's already taken up 3 hours of my morning and I'd just as soon return it as spend a lot of time on a lost cause.

Ideas? Reactions?

Closeup of diseased area

Name: IMG_1326 - 2013-09-06 at 23-34-52.jpg Views: 1429 Size: 49.2 KB


Full length - severely trimmed back

Name: Yucca full - 2013-09-06 at 23-35-51.jpg Views: 408 Size: 78.4 KB


Tag showing ostensibly healthy yucca

Name: Yucca tag - 2013-09-06 at 23-33-05.jpg Views: 386 Size: 61.6 KB


There are a couple more in the next post -