Candidate insecticides Bromodan (5-(bromomethyl) - 1,2,3,4,7, 7-hexachloro-2-nonbornene), Bay 39007 (o-isopropoxyphenyl mehtylcarbamate), Amer. Cyan CL 47300 (O,O-dimethyl O-4 nitro-m-tolyl phosphorothioate), Ciodrin (alpha-methylbenzyl 3-hydroxycrotonate dimethyl phosphate), and Shell SD7438 S, S-benzylidene bis (O, O-dimethyl phosphorodithioate) were tested as protectants for rough rice. Malathion was included as a standard, sin it is know to be an effective, long-term protectant for rough rice during storage. Test insects were adult rice weevils, Sitophilus oryàe (L.); confused flour beetles, Tribolium confusum Jacquelin duVal; lesser grain borers Rhyòpertha dominica (F.); and rice weevil larvae, The most general effective compound was CL 47300. Bromodan produced the best control of lesser grain bores but was ineffective against the other species.