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Proportion of Culex pipiens egg rafts laid in binary choice behavioural cage bioassays for blackberry leaf infusion (top; purple) and honeysuckle leaf infusion (bottom; red). Pictured left is the configuration of treatment pairs in insect rearing cages (top), and absence (centre) and presence (bottom) of egg rafts in experimental treatments. Asterisks indicate significant pairwise differences at α = 0.05. (Online version in colour.)
