A second plant (this time Durban genetics) is succumbing to whatever affliction the first one did. I need some more ideas as to what is causing this, and rapidly, before the whole crop dies. So any help now is worth more to me than I can put to words, and I would really appreciate it. The first plant has been removed from the garden as KIA - and it went down fast - healthy to nearly dead in a matter of hours (few days, < a week).

Symptoms first appeared on plant #2 yesterday, prompting the rapid transplanting. The leaves showing symptoms currently are mostly 3 and 5 blade fan leaves, about 60-70% are near the middle of the plant, the rest are random along the plant. A total of 6-12 leaves are symptomatic so far, and are yellowing. The few that have already done so (2 or 3) seem to be progressing to look like the images in the original post (the sick leaves). The pattern shows a leaf to yellow (usually), and then the blades individually curl and crisp at varying rates on the same leaf, but within a short time of each other. One important note: things aren't moving quite as fast on this one (about 2/3 as fast, still fast enough to cause concern), probably because it is a little smaller, and possibly because it is genetically hardier than the other strain was. Regardless, I'd like to have this cleared up before this plant is lost as well as any further losses in the garden.

Here is what corrective actions have been taken with all plants thus far:

  1. As of yesterday all have been moved to pots 2.5X the size of the previous ones.
  2. Full flush of soil, which is a 1:1 ratio of what they were in and new soil (larger pots).
  3. They have been given small doses of minor nutes to correct any non-NPK probs.
  4. 1/4 NPK nute dose to balance with the minor nute blend and prevent lockout.
  5. Garden adjustment to allow 20-30% more shade, decreasing temp by 5 deg.


If anyone can think of anything else, please let me know. Rach, I didn't talk to you online today - may call you to get advice, but anything you can offer here = :thumbsup:.