Abstract

Bromodan (5-(bromomethyl)-l,2,3,4,7,7-hexachloro-2-norbornene) was tested as a protectant for Soft Red Winter wheat against infestation by 3 species of stored-product insects. Immediately after treatment a deposit of 20 ppm killed all rice weevils, sitophilus oryzac (L.), and cigarette beetles, Lasioderma serricorne (L.), and a deposit of 80 ppm killed all confused flour beetles, Tribolium confusum Jacquclin duVal. Eight months after treatment at the rate of 20, 40, and 80 ppm, respectively, rice weevil mortalities of 12, 66, and 100% were obtained. Based on development of progeny, a deposit of 20 ppm prevented reproduction of each species.

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