ey . ▁ ▁Effect s ▁on ▁n ont arget ▁species ▁ ▁B tk ▁is ▁generally ▁regarded ▁as ▁environment ally ▁safe , ▁as ▁its ▁to x icity ▁is ▁essentially ▁limited ▁to ▁its ▁target ▁p est ; ▁humans , ▁wild life , ▁and ▁benef icial ▁insect s ▁are ▁regarded ▁as ▁una ffect ed ▁by ▁the ▁p estic ide . ▁Even ▁so , ▁in ▁ 2 0 1 2 , ▁a ▁regul atory ▁review ▁of ▁several ▁stra ins ▁of ▁B t ▁by ▁the ▁European ▁Food ▁Saf ety ▁Author ity ▁stated ▁that ▁although ▁there ▁was ▁data ▁supporting ▁the ▁claims ▁of ▁low ▁to x icity , ▁the ▁data ▁was ▁ins u fficient ▁to ▁prove ▁the ▁claims ▁conclus ively . ▁ ▁Hum ans ▁▁ ▁In ▁studies ▁of ▁the ▁effects ▁of ▁B t ▁on ▁humans , ▁most ▁subjects ▁were ▁una ffect ed ▁when ▁exposed ▁to ▁B t . ▁Some ▁individuals ▁react ed ▁with ▁ir rit ation ▁of ▁the ▁eyes ▁and ▁skin . ▁Other ▁subjects ▁with ▁hay ▁fe ver ▁reported ▁more ▁significant ▁effects , ▁including ▁thro at ▁ir rit ation , ▁ups et ▁st om ach , ▁and ▁difficulty ▁sleep ing . ▁ ▁Tr ich ogram ma ▁was ps ▁ ▁Tr ich ogram ma ▁is ▁a ▁species ▁of ▁par as it ic ▁was p ▁whose ▁females ▁lay ▁their ▁eggs ▁in ▁the ▁eggs ▁of ▁their ▁hosts ; ▁after ▁killing ▁the ▁host , ▁an ▁adult ▁was p ▁emer ges . ▁For ▁this ▁reason , ▁tr ich ogram ma ▁is ▁often ▁used ▁as ▁a ▁bi ological ▁control ▁agent , ▁and ▁it ▁can ▁even ▁be