Sorry, you're right, that would help.. I have 3% to work with.rghm1u20 said:What kind of H2O2? In my country usually you can find it as 3%, but also 8%, maybe others too. Depending on this, depends also the ratio (not that I know the ratio, but will help other users to know what kind of H2O2 you want to dilute).
DanMcG said:I might remove the effected leaves later today, I'm waiting for a 30x loop so I can see whats going on close up. One thing that's confusing me is your % solution numbers and how you calculated them. If I say a ratio of 1:9 I'm talking, 1 part h2o2 solution and 9 parts water, but I'm missing something that gets me a 0.30% anything.
Thanks for your time I really appreciate it.
CaneDog said:...
I just this morning used 1:3 (0.75%) on a seedling with cotyledons that just opened and looked like they might have a little rot developing on them. I've done this once before with another highly-valued sprout and it did fine. Hoping for the same this time.
CaneDog said:You bet Dan - good luck!
In case anyone's interested, the new seedling I put drops of 0.75% h2o2 on this morning did the same thing the previous one did. The end 70% of so of the cotyledons that looked like they may have been suffering rot are now clearly dead and brown, but the remaining 30% of the cotyledons nearest the growth tip and the rest of the seedling look healthy and green. I'm hoping what I did was catch the rot in time and stop it from progressing to the growth tip and killing it and that the browning isn't that I killed healthy tissue, but only the rotting tissue and whatever fungus might have been on it. The last one ended up with some pretty stubby cotyledons, but the true leaves grew in well.