I'm a Professor and have been working on a way to drop pesticide usage, specifically copper usage for organic farming. We've just wrapped up 3 years of trials (lab, then small plants, then a handful of peach trees in the field).
We have gotten great results and will be scaling up our field trials (grapes, then nuts and tomatoes) but I found out that it doesn't need approval in the US since its using existing pesticides.
We're hoping to partner with some farmers and give it away free (or at very low cost, depending on size) in order to get data on more crops and prove it in the field.
Happy to provide more info, but very briefly:
It prevents copper from washing off leaves in the rain and can even be sprayed in the rain. But can be selectively removed with certain Agricultural washes.
Compatible with existing spray equipment (water based).
In our field trials allowed for lower concentrations to be used, and the fewer sprays from not washing off meant more than 100x reduction in copper usage per season.
Plant-based and is already in foods and drinks.
Our initial trials were peach trees, but keen to do anything where copper is already used. We also have a more advanced formulation thats broadspectrum against viruses, bacteria, and fungi, but I am not positive what regulatory pathway that one needs.
Sorry if this isn't of interest, but reach out if it is.