STUDY THE BIOLOGICAL EFFECT AND NANO PREPARATION OF OLEANDER PLANT NERIUM OLEANDER ON THE HAIRY GRAIN BEETLE Trogoderma granarium EVERTS (COLEOPTERA: DERMESTIDAE): STUDY THE BIOLOGICAL EFFECT AND NANO PREPARATION OF OLEANDER PLANT NERIUM OLEANDER ON THE HAIRY GRAIN BEETLE Trogoderma granarium EVERTS (COLEOPTERA: DERMESTIDAE). (2026). Iraqi Journal of Market Research and Consumer Protection, 18(1), 336-345. https://www.jmracpc.uobaghdad.edu.iq/index.php/IJMRCP/article/view/590