TOPBUXUS Trichogramma - Parasitic Wasps against Boxwood Moth EggsTrichogramma are parasitoid micro wasps. The female lays her eggs in those of the Boxwood moth, destroying them and thus preventing caterpillars from hatching. Compatible with TOPBUXUS Anti Rups XenTariNOTE: TOPBUXUS Trichogramma is not a substitute for Anti Rups XenTari, it will ensure that there are far fewer caterpillars hatching from the Boxwood moth eggs (reduction of up to 90%) which can then be destroyed with TOPBUXUS Anti Rups XenTari. 1 Order