No flea beetles lately, and have applied kaolin only once so far

However, now that the tomatoes and ground cherries are back to living outside full time, I imagine the flea beetles may reappear, especially as there's now a lot of new green growth uncovered by the kaolin.  It has been very dry, hardly any rain at all, so the original kaolin application is still largely there.  I won't re-apply kaolin for now, will just monitor, and when I do re-apply it, I'll dilute it more, because I do wonder if it had a harmful effect on the plants to some extent.