DDT as a contact insecticide on honeybees and cockroaches.
D000818:Animals; D001516:Bees; D003058:Cockroaches; D003634:DDT; D007306:Insecticides
D007306:Insecticides; D003634:DDT
COCKROACH/DDT; DDT/as contact insecticide; INSECTICIDE/contact, on honeybees