To evaluate management options and determine the yield and grain quality impacts of aphids in wheat, durum and barley.

Imidacloprid seed treatment provided significant reductions in the % of barley tillers infested with both oat and corn aphid at 110 days after planting. However there was no significant difference in rose-grain aphid numbers at the same assessment. Application of foliar insecticide application significant reduced rose-grain aphid populations in both bread and durum wheat. Interestingly seed treatment use in barley resulted in significantly increased levels of rose-grain aphid compared to untreated seed at 133 and 139 days after planting. Both the high rate of seed treatment and foliar insecticide treatment resulted in a significant yield increase in the durum variety. There was a clear trend to increased yields (~200 kg/ha) across all three varieties but with no apparent impact on grain quality.