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Control of Hemlock Woolly Adelgid Using Soil Injections of Systemic Insecticides

V. Bruce Steward and Tracy A. Horner
Arboriculture & Urban Forestry (AUF) September 1994, 20 (5) 287-288; DOI: https://doi.org/10.48044/jauf.1994.051

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Tables

  • Table 1.

    Percent mortality of hemlock woolly adelgid 5 months after soil injections were made around hemlocks using Merit 2F and Metasystox-R2.

    % Mean mortality (±SD)
    Sample locationb
    TreatmentTotalTopBottom
    Merit 2F95.9 ± 12.5aa96.2 ± 11.9a95.6 ± 13.0a
    Metasystox-R284.9 ± 13.4b87.0 ± 12.7a82.8 ± 13.8b
    Control56.5 ± 19.5c58.8 ± 22.0a54.3 ± 16.3a

    • ↵a Means within column sharing the same letter are not significantly different, (P<0.05; ANOVA/Fisher’s protected LSD).

    • ↵b Pairs in row sharing the same letter are not significantly different, (P<0.05; ANOVA).

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Control of Hemlock Woolly Adelgid Using Soil Injections of Systemic Insecticides
V. Bruce Steward, Tracy A. Horner
Arboriculture & Urban Forestry (AUF) Sep 1994, 20 (5) 287-288; DOI: 10.48044/jauf.1994.051
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