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. 2016 Dec 30;11(12):e0169115. doi: 10.1371/journal.pone.0169115

Fig 2. Trends comparing efficacy of Cry1A.105+Cry2Ab2 Bt sweet corn (Performance Series) with non-Bt isogenic hybrids for control of Helicoverpa zea during 2010–2016 in Maryland, USA.

Fig 2

Over years, Bt hybrids (blue circles and shades) had significant increases in the percentage of H. zea damaged ears (A), kernel consumption (B), instar stage (C) and proportion of late instars (D) than non-Bt hybrids (yellow squares and shades). Points represent the raw data, black lines represent the predictions from LMMs / GLMM, while shaded region denote the upper and lower confidence levels (95% CI).