ABSTRACT. The e ect of three commercial botanical insecticides on the mortality by residues and ingestion of Tamarixia radiata was evaluated. Biodie and NeemPHC had 12.7 and 12.3 % residue mortality e ect and 33.3 and 28.7 % mortality by ingestion, respectively. Mortality also increased signi cantly as time went by, although only with regard to ingestion, and up to 48 and 72 h, for both Biodie and NeemPHC. CinnAcar did not have a major toxic e ect when ingested and none of the botanical insecticides had signi cant e ects on the appearance of adults. The three products under evaluation do not interfere with biological control.