On thrips(tracer) spinosad, 3 days PHI is good though very expensive.
Calypso (Thiocloprid) 14 days p.h.i(bayer) is relatively good.
If the product is for export avoid using Imidacloprid (confidor),before consulting your client because of the current regulations.(to avoid MRL detec.)..since its client specific for now.
Wishing you all the best.
Doris Wairimu.