0% of homozygous and Rac2Δ/Rac2KG05681b larvae show proper encapsulation (seen as a dark capsule around the egg) of wasp eggs (avirulent L.boulardi wasp strain G486) 40-42 hours after parasitisation, in contrast to heterozygous control larvae where 71.2% (Rac2Δ/+) and 89.4% (Rac2KG05681b/+) of the wasps eggs are properly encapsulated at this time.