My clones are dying before they are rooting. It seems it is an issue at the leaf level not the root level. It seems the leaves get burned or something. Notice these patches of dead leaves in the images. I am not having root rot.
the clones grow in rooting plugs (eazy plugs) which are watered with chlorinated water. Temperature at root level is between 20 - 23 degree celsius (heated humidity dome). The cloner lids are half open. If I open them too much I think the clones dry out. The cloner gets disinfected before use. I use only one fluorescent bulb 20 Watts.
Also the clones get sprayed with 1 - 3 % hyrogen peroxide water solution.
It seems that the leaves are slowly dying away and then after enough leaves died the dead rest willl just mold away.
Is it too humid? Is the hydrogen peroxide or the chlorine hurting the plants? Could it be a sickness from the mother plants (they didn’t look too good after the cold winter, had some yellow leaves). Some sort of nutrient burn? I am not feeding them. Could it be a ph issue? I am spraying them fairly often but the water (tap water has ph 6.9).
My lower leaves always die on clones. Trim them waaaaay down. Like cut 2/3 of each leaf off. You don’t need to pull nutes into a clone, with full leaves they can respirate too much.
I use tap water when I clone without issue. I’d turn the heat off, and try only water too.
Why are you spraying h2o2 on your unrooted clones? I know some people do this to treat specific known issues, but it doesn’t sound like you have a known issue. I have literally a 100% success rate with my clones, and I’ve never sprayed them with hydrogen peroxide.
Regarding your water, it may not be a bad idea to get a gallon of distilled water and only use that. Your pH balanced chlorinated tap water may not be an issue, but that doesn’t mean it isn’t. Not all municipal water is the same.
If the plugs are moist and there’s condensation on the sides of the dome, then you don’t need to mist. Once I put my cuttings into the rooter plugs/peat pellet, the most I do is wipe off some of the condensation and let the lm breath for a minute. Though up till now I’ve been using large jars and sealing them in pretty tight. Now that I have trays and domes that aren’t air tight, or they even have vents, I just set and forget.
