I have a Dendrobium antennatum that has been giving me problems for the past 2 and a half years but I have no clue what’s wrong with it. I have four other species and one hybrid from the Spatulata section that are all growing extremely well. It’s only the antennatum that is misbehaving.
Issues:
1. Weak growth. I’ve had 6 new growths since I bought it. 3 have been shorter than the previous growth (1 short, the next tall, the following short, and so on..). All are fairly skinny, but not dehydrated. I repotted it in June, the root system is fantastic :/
2. An already developed, mature cane just shrivels up and becomes hollow halfway down or at the tip. No warning, not squishy, just fine minute and the next... hollow.
3. Susceptible to disease. I will get random rotting, squishy leaves. The top section of a new growth will rot and die back in a day. Again, not an issue on any of my other dens in this section.
It should be obvious that I’ve not bloomed this one. I guess what I’m wondering is if this is just a weak or potentially virused plant that is not going to grow well no matter what I do. I’ve treated it with fungicide, Inocucor, and spot treatments of hydrogen peroxide (rot on leaves and canes, not on the roots). I’ve increased the air movement, checked the roots and made sure it was not getting too much direct light at any given time of the day.
Should I just chuck it in the trash? Or am I missing something?
---------- Post added at 03:55 PM ---------- Previous post was at 03:14 PM ----------
Some pics from today. The nasty cane and leaf (pic #3 and #4) just showed up today, hence my frustration
IMG_3282 by
Sara, on Flickr
IMG_3280 by
Sara , on Flickr
IMG_3278 by
Sara , on Flickr
IMG_3275 by
Sara , on Flickr
Den. antennatum problems
Threaded Mode
