Hydrogen peroxide – the same stuff you can pick up ... it’s very difficult and expensive to obtain peroxide in concentrations above 3% or so. That’s alright with [Charlie], though, because ...

Make a 10% hydrogen peroxide solution (stronger than the others 3% solutions!) in a spray bottle. Spray the plants, letting ...

But we need to make larger systems, and over the next year we plan to scale up to about 100 kilos a day and also increase the concentration significantly above 0.3%. From a high level, we want to ...