Table 3.

Analysis of variance (ANOVA) results (degrees of freedom, df; F value statistic, F; P value, P) from linear mixed models

	Consumption per weevil (mm2) during 3 days of Bt‐treated food			Consumption per weevil (mm2) during 7 days of Bt‐treated food			Consumption per weevil (mm2) during subsequent 7 days of non‐Bt food
	df	F	P	df	F	P	df	F	P
Treatment	6, 270	16.98	<0.0001	6, 270	20.46	<0.0001	6, 270	11.95	<0.0001
Contrasts	df	t	P	df	t	P	df	t	P
C vs BL	11.3	−1.20	0.66	6.73	−2.18	0.23	10.2	0.57	0.94
C vs BH	11.3	−4.31	0.005	6.73	−4.13	0.02	10.2	−1.18	0.68
C vs VL	11.3	−7.18	0.0001	6.73	−7.54	0.0007	10.2	−5.56	0.001
C vs VH	11.3	−7.88	<0.0001	6.73	−7.42	0.0008	10.2	−5.48	0.001
C vs NL	11.3	−3.21	0.03	6.73	−4.25	0.01	10.2	−2.38	0.15
C vs NH	11.3	−5.16	0.001	6.73	−5.57	0.004	10.2	−1.76	0.36

These models examined the effect of treatment [control (C); Bt galleriae formulation low and high concentration (BL, BH); Bt israelensis (VL, VH); Bt tenebrionis (NL, NH)] on individual Hylobius abietis consumption (mean stem area debarked per surviving weevil, mm²) during 3 and 7 cumulative days of Bt‐treated food and an additional 7 days exposed to non‐Bt treated food (stem pieces of Picea abies). Pairwise comparisons (using Dunnett adjustment; t ratio, t) examine differences between each treatment and the control group. Significant effects (P < 0.05) are shown in bold.