WHEAT MIDGE INFESTATION OF SPRING CEREALS IN NORTHEASTERN SASKATCHEWAN

Abstract

Annual canarygrass and oats were found to be free of natural infestations of wheat midge (Sitodiplosis mosellana Géhin) in northeastern Saskatchewan. Six-row barley cultivars had low infestations and triticale, rye, wheat and durum wheat, high levels of infestation. Differences among susceptible cultivars were frequently due to asynchrony of plant susceptibility and midge oviposition.Key words: Sitodiplosis mosellana Géhin, wheat midge, cereals, cultivars