I’ve been following this discussion and wanted to share my experience as well. If you’re already exploring biopesticides, you may want to consider using Beauveria bassiana along with your current setup. It’s a soil-derived fungus that works well against soft-bodied pests like whiteflies, aphids, thrips, and even some borers. I’ve seen good results when applied during early infestation and under slightly humid conditions. It doesn’t give an overnight knockdown, but it builds steady control and helps reduce chemical use over time. Might be worth trying as part of the experiment.