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Physiological Response of Ash Trees, Fraxinus spp., Infested with Emerald Ash Borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), to Emamectin Benzoate (Tree-Äge) Stem Injections

Ryan P. Hanavan and Molly Heuss
Arboriculture & Urban Forestry (AUF) July 2019, 45 (4) 132-138; DOI: https://doi.org/10.48044/jauf.2019.012

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Figures

  • Figure 1.
    Figure 1.

    Chlorophyll a fluorescence OJIP curves from green ash at the Dog Park site (a-c) and white ash at the City Street site (d-f) in 2014, 2015, and 2016, respectively.

  • Figure 2.
    Figure 2.

    Mean chlorophyll concentration (mg/cm2) over time for green ash at the Dog Park (a) and white ash at the City Street sites (b), respectively. An asterisk indicates significant differences (P < 0.05) between chemically treated trees and untreated control trees.

  • Figure 3.
    Figure 3.

    Mean plant vitality measured as Performance Index (PIabs) over time for green ash at the Dog Park (a) and white ash at the City Street sites (b), respectively. An asterisk indicates significant differences (P < 0.05) between chemically treated trees and untreated control trees.

  • Figure 4.
    Figure 4.

    Mean plant fitness measured as maximum quantum yield of PS II photochemistry (FV/FM) over time for green ash at the Dog Park (a) and white ash at the City Street sites (b), respectively. An asterisk indicates significant differences (P < 0.05) between chemically treated trees and untreated control trees.

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Physiological Response of Ash Trees, Fraxinus spp., Infested with Emerald Ash Borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), to Emamectin Benzoate (Tree-Äge) Stem Injections
Ryan P. Hanavan, Molly Heuss
Arboriculture & Urban Forestry (AUF) Jul 2019, 45 (4) 132-138; DOI: 10.48044/jauf.2019.012
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