Quote:
Originally Posted by cmak40  is this why i also get yellow burnt tips?
mine go straight on a horticultural heat mat and im doin good for succes rate they are just kind of droopy and yellow burnt tips. my watering skills could need honing as im still pretty new... |
yes sounds like overwatering as well. Yellow tips and margins (edges) on lower leaves as well as that sickly undercurl are indicative of starvation of water.
'Overwatering causing STARVATION of water,' you say? Yep. Overwet conditions favour pythium and fusarium which will rot the stem tip and block the capillaries, causing wilt. Very often people conclude the wilt is because the clones are too dry, so they set about giving even more water and perhaps misting too, which of course makes things worse.
You can rescue them. Recut the affected stems and plug into new cubes that have been soaked in pH5.0 water for 24 hours. Drain as much of the water as possible by shaking the water out of the cubes. Never squeeze. Dip the stems in rooting powder & plug into new cubes. Water clones immediately with a mix of water, 50% grade H2O2 @ 1ml/L, pH to 5.8, use about 15-20ml per cube. A 60ml syringe is pretty good for accurate watering.