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Margaret T. Mmbaga, Lucas M. Mackasmiel, and Frank A. Mrema

from dogwood was from plants that were also infected with Erysiphe pulchra ( Mmbaga et al., 2018 ), the impact of compounded infections on plant growth has not been evaluated. Such information would have significant implications on disease management

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Anthony L. Witcher, Fulya Baysal-Gurel, Eugene K. Blythe, and Donna C. Fare

Flowering dogwood (Cornus florida) is a valuable nursery product typically produced as a field-grown crop. Container-grown flowering dogwood can grow much faster than field-grown plants, thus shortening the production cycle, yet unacceptable crop loss and reduced quality continue to be major issues with container-grown plants. The objective of this research was to evaluate the effects of container size and shade duration on growth of flowering dogwood cultivars Cherokee Brave™ and Cherokee Princess from bare-root liners. In 2015, bare-root liners were transplanted to 23-L (no. 7) containers and placed under shade for 0 months (full sun), 2 months (sun4/shade2), 4 months (sun2/shade4), or 6 months (full shade) during the growing season. In 2016, one-half of the plants remained in no. 7 containers and the other half were transplanted to 50-L (no. 15) containers and assigned to the same four shade treatments. In 2015, plant height was greatest with full shade for both cultivars, whereas stem diameter and shoot dry weight (SDW) were greatest in full shade for Cherokee Brave™. In 2016, both cultivars in no. 15 containers had greater plant height, stem diameter, root dry weight (RDW), and SDW. Full shade resulted in the greatest height, stem diameter, RDW, and SDW for Cherokee Brave™, and improved overall growth for ‘Cherokee Princess’. However, vigorous growth due to container size and shade exposure increased the severity of powdery mildew (Erysiphe pulchra) in both years. Substrate leachate nutrient concentration (nitrate nitrogen and phosphate) was greater in no. 15 containers but shade duration had no effect.

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Phillip A. Wadl, Mark T. Windham, Richard Evans, and Robert N. Trigiano

urban and suburban landscapes. Across this range, flowering dogwoods have been severely affected by dogwood anthracnose [ Discula destructiva ( Redlin, 1991 )] and powdery mildew [ Erysiphe pulchra ( Li et al., 2009 )]. Because of the importance of

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Xiaohe Song and Zhanao Deng

, including melon ( Cucumis melo ) and Sphaerotheca fuliginea ( Kuzuya et al., 2003 ), and flowering dogwood ( Cornus florida ) and Erysiphe pulchra ( Li et al., 2005 ). Although it may not present as strongly as complete resistance or immunity conferred

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Thomas J. Molnar, Megan Muehlbauer, Phillip A. Wadl, and John M. Capik

destructiva ) and powdery mildew (primarily Erysiphe pulchra ). Trees of ‘Rutpink’ have exhibited no winter injury under field tests in New Brunswick, NJ, in Zone 7a [0 to 5 °F ( USDA Plant Hardiness Zone Map, 2012 )]. ‘Rutpink’ was derived from the open

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Phillip A. Wadl, Xinwang Wang, Andrew N. Trigiano, John A. Skinner, Mark T. Windham, Robert N. Trigiano, Timothy A. Rinehart, Sandra M. Reed, and Vincent R. Pantalone

( Dirr, 1998 ). Additionally, kousa dogwoods are regarded as more resistant to dogwood anthracnose ( Discula destructiva ) and powdery mildew ( Erysiphe pulchra ) than flowering dogwood ( Hagan et al., 2001 ; Ranney et al., 1995 ). Kousa dogwood is

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Jacqueline Joshua and Margaret T. Mmbaga

endophytes as BCAs of fungal pathogens. Eight bacterial endophytes including five presented in Table 2 and three (B17A, B17B, and IMC8) previously isolated from C. florida stem pieces and found to suppress Erysiphe pulchra ( Mmbaga et al., 2018b

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Phillip A. Wadl, John A. Skinner, John R. Dunlap, Sandra M. Reed, Timothy A. Rinehart, Vincent R. Pantalone, and Robert N. Trigiano

destructiva Redlin ( Redlin, 1991 )] and powdery mildew [ Erysiphe pulchra (Cooke & Peck) U. Braun & S. Takam. ( Klein et al., 1998 )]. Mortality of flowering dogwood caused by dogwood anthracnose has ranged from 48% to 98% in the northeast and Appalachian