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Fig. 4 | BMC Plant Biology

Fig. 4

From: Isoprene emission by poplar is not important for the feeding behaviour of poplar leaf beetles

Fig. 4

Feeding choice of Chrysomela populi on isoprene emitting and non-emitting poplar leaves. Feeding choice of 3rd instar C. populi larvae (a, b) and adult beetles (c, d) on isoprene emitting (IE; ■) plants or non-emitting (NE; □) plants. The herbivores had previous feeding experience on NE (a, c) or IE plants (b, d) and they were offered a choice between IE and NE leaves. The infested leaf areas were analyzed from photographs by SigmaScan Pro5 computer program and are presented as mean ± SE, n (a) =35; (b) = 45; (c, d) = 30; asterisk indicates significant difference between the genotypes, P < 0.01 (detailed statistical analysis in Additional file 8: Table S5)

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