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Fig. 6 | BMC Plant Biology

Fig. 6

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

Fig. 6

C. populi bioassay under field conditions. The experimental scheme shows the days of sampling, harvesting and the release of the beetles (a). A picture of the semi natural experimental cages (b) and C. populi location (c), leaf consumption (d) and laid eggs (e) on isoprene emitting (IE; ■) and non-emitting (NE; □) poplar trees in cages during a 14-day experiment. Consumed leaf area (b) is a visual approximate in which a scale 0-to-5 (0: no damage; 1 < 10 % infested leaf, 2: 20-to-25 %, 3: 25-to-50 %, 4: 50-to-75 % and 5 > 75 % infested leaf) was applied. Mean ± SE of 8 replicates is presented

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