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Flavonoids in needles from Adelges laricis-infested twigs of Larix decidua (μg/g d.w.). (a) Flavanols. (b) Flavanonols and flavones. (c) Flavonols. The sample collection dates: 20th of April (initial phase of adelgid infestation), 10th of May (peak phase of adelgid infestation) and 19th of June (decline phase of adelgid infestation); (mean ± SE; n = 3); different letters show significant differences (one-factor ANOVA at p = 0.05 and post hoc Newman–Keuls test).
