Identification Cereal aphids are a complex of three different species that infest cereals. Bird cherry-oat aphids (figure 1) are the most common aphid found in Ontario cereals. These aphids are small, 2 mm (1/12 in.) or less. Adults are olive-green with patches of red-purple near the rear of the abdomen, between a pair of “tailpipes” … Continue reading Cereal Aphids […]
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