Be very careful with Einstein Oil! I just got some today and used it as a precautionary measure on some healthy rooted clones and it killed 5 out 15 only hours after using it. I followed the instructions exactly and then went to dinner for a few hours. I came back and checked on the girls and they were looking bad. The healthier ones had black spots that looked like they were burned, not a nute burn but a fire burn. Some of the other healthier ones looked like they had light nute burn. The bad ones, the 5 dead ones, looked like the leaves are dead, turned brown, transparent, droopy and soggy.
I think I know some of what caused this. After using the oil I put them directly under the fluorescent lights. These particular lights are very bright and I think they could have the potential to burn a plant if they were wet. However the extent of the damage goes beyond the average water/light burn. I have sprayed other clones and babies before and put them under these lights with no issues.
After discovering this tragedy I dipped them all in water and turned the light off. I will check them in the morning and hope for the best.
The lesson learned is this, I will not use this oil again unless there is an actual mite problem.
Next time I will just trust to a visual inspection. Clones are small enough to check thoroughly for any molds/bugs.
Be careful with this oil, perhaps try it out on one clone and see how it goes, avoid light until it the spray is totally dry.