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Research ArticleArticles

Biology and Management of Allokermes kingii (Hemiptera: Kermesidae) on Oak Trees (Quercus SPP.)

Jay Cee L. Turner and Eileen A. Buss
Arboriculture & Urban Forestry (AUF) July 2005, 31 (4) 198-202; DOI: https://doi.org/10.48044/jauf.2005.025
Jay Cee L. Turner
1Graduate Research Assistant, Entomology and Nematology Department, University of Florida, P.O. Box 110620, Gainesville, FL 32611-0620, U.S.
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Eileen A. Buss
2*Assistant Professor Entomology and Nematology Department, University of Florida, P.O. Box 110620, Gainesville, FL 32611-0620, U.S.
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    Figure 1.

    Seasonal life history of Allokermes kingii in Clearwater, Florida.

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    Table 1.

    Mean (±SEM) percentage of dead first and second instar Allokermes kingii per four-branch sample.

    TreatmentRate9 May (1 WAT)22 May (3 WAT)5 June (5 WAT)19 June (7 WAT)
    Control—5.7 ± 3.80012.3 ± 5.7
    Acephate226.8 g/378 L (8 oz/100 gal)31.7 ± 4.132.7 ± 5.2*11.0 ± 3.218.3 ± 6.6
    Bifenthrin2.3 L/378 L (0.63 gal/100 gal)24.7 ± 2.616.0 ± 6.712.0 ± 5.19.7 ± 2.7
    Horticultural oil7.6 L/378 L (2.0 gal/100 gal)37.7 ± 11.126.7 ± 9.0*15.8 ± 3.021.7 ± 9.2
    Imidacloprid5.7 g/7.56 L (0.2 oz/2.0 gal)17.3 ± 5.811.3 ± 5.720.1 ± 6.524.2 ± 3.6
    Oil + acephate7.6 L oil + 226.8 g
    acephate/378 L (2.0 gal + 8 oz/100gal)
    23.6 ± 10.7 113.2 ± 8.941.7 ± 19.3*15.5 ± 12.5
    F = 2.33F = 3.89F = 2.62F = 0.70
    df = 5, 24df = 5, 24df = 5, 24df = 5, 24
    P = 0.07P = 0.01P = 0.05P = 0.63
    • ↵* Means within a column followed by an asterisk are significantly different from the control (Dunnett’s test) at P < 0.05.

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    Table 2.

    Mean (± SEM) number of healthy first and second instar Allokermes kingii per four-branch sample.

    TreatmentRate (product/water)24 April (pretreatment)9 May (1 WAT)22 May (3 WAT)5 June (5 WAT)19 June (7 WAT)
    Control—69.0 ± 32.166.6 ± 24.041.2 ± 8.443.2 ± 13.333.2 ± 10.9
    Acephate226.8 g/378 L (8 oz/100 gal)100.0 ± 54.826.2 ± 8.313.4 ± 2.440.6 ± 17.341.2 ± 21.4
    Bifenthrin2.3 L/378 L (0.63 gal/100 gal)85.0 ± 24.044.4 ± 22.216.8 ± 7.770.8 ± 40.9308.2 ± 118.7*
    Horticultural oil7.6 L/378 L (2.0 gal/100 gal)94.0 ± 25.912.6 ± 4.313.0 ± 4.925.6 ± 8.523.6 ± 6.1
    Imidacloprid5.7 g/7.56 L (0.2 oz/2.0 gal)117.8 ± 49.671.6 ± 22.556.0 ± 14.252.4 ± 37.157.6 ± 27.3
    Oil + acephate7.6 L oil + 226.8 g
    acephate/378 L (2.0 gal + 8 oz/100gal)
    49.0 ± 27.55.2 ± 2.87.8 ± 3.0*2.6 ± 1.514.2 ± 12.7
    F = 0.41F = 2.77F = 6.03F = 0.91F = 4.90
    df = 5, 24df = 5, 24df = 5, 24df = 5, 24df = 5, 24
    P = 0.83P = 0.04P = 0.001P = 0.49P = 0.003
    • ↵* Means within a column followed by an asterisk are significantly different from the control (Dunnett’s test) at P < 0.05.

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Arboriculture & Urban Forestry (AUF): 31 (4)
Arboriculture & Urban Forestry (AUF)
Vol. 31, Issue 4
July 2005
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Biology and Management of Allokermes kingii (Hemiptera: Kermesidae) on Oak Trees (Quercus SPP.)
Jay Cee L. Turner, Eileen A. Buss
Arboriculture & Urban Forestry (AUF) Jul 2005, 31 (4) 198-202; DOI: 10.48044/jauf.2005.025

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Biology and Management of Allokermes kingii (Hemiptera: Kermesidae) on Oak Trees (Quercus SPP.)
Jay Cee L. Turner, Eileen A. Buss
Arboriculture & Urban Forestry (AUF) Jul 2005, 31 (4) 198-202; DOI: 10.48044/jauf.2005.025
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