This study evaluated the efficacy of the foliage-dwelling predator Orius laevigatus, soil applied entomopathogens and azadirachtin alone and in combinations for controlling western flower thrips (WFT). Evaluated products were Nemastar® Steinernema carpocapsae (Enema) and Orius laevigatus (Re-natur), Metarhizium anisopliae isolate ICIPE-69 and NeemAzal-T (azadirachtin) (Trifolio). Efficacy against WFT was significantly improved by combined treatments achieving 62-97% reduction in WFT emergence, compared to 45-74% in single treatments, and interactions resulted in two synergistic and eight additive responses. Metharhizium based treatments reduced WFT survival by 93-99.6% when late mortality by mycosis was considered. Halving the number of released predators did not significantly reduce efficacy (86-96% vs 76-88% thrips reduction), and when Orius was introduced to target L1 of WFT, 96-98% reduction was achieved while only 71-89% for L2. Early release of O. laevigatus and combination with soil application of NeemAzal-T and/or entomopathogens can be a successful and reliable biocontrol strategy for WFT.