PPFS-OR-H-11: Common Problems of Annuals and Perennials: An Index

Ellen Crocker, Jamie Dockery, Nicole Ward Gauthier, Jonathan Larson, Kimberly Leonberger | Aug. 2, 2021 (New)

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PPFS-OR-W-30: Common Problems of Common Trees: An Index

Ellen Crocker, Jamie Dockery, Nicole Ward Gauthier, Jonathan Larson, Kimberly Leonberger | Jul. 19, 2021 (New)

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PPFS-OR-W-31: Common Problems of Common Shrubs: An Index

Ellen Crocker, Jamie Dockery, Nicole Ward Gauthier, Jonathan Larson, Kimberly Leonberger | Jul. 19, 2021 (New)

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PPFS-OR-W-20: Boxwood Blight

Jamie Dockery, Nicole Ward Gauthier | Aug. 1, 2018 (Major Revision)

Boxwood blight is a disease of boxwood (Buxus spp.), causing rapid defoliation and plant dieback. The fungal disease is particularly devastating to American boxwood cultivars, which can defoliate within a week and die within one growing season. Plants are eventually weakened by repeated defoliation and dieback, and resulting plant stress and consequent colonization by secondary invaders result in plant death.

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ID-50: Shade Tree Decline and Related Problems

Jamie Dockery, Kristin Goodin, Cheryl Kaiser, Delia Scott, Nicole Ward Gauthier, Jeremy Williams | Jul. 1, 2014 (Major Revision)

Woody plant stress has many causes that might ultimately lead to plant decline. Tree and shrub degeneration is often referred to as a "complex," meaning the condition is usually caused by multiple factors. Typically, one or more primary stresses cause deterioration of plant health, followed by secondary pathogens and/or insects that further decline or destroy plants. Determining causes of decline requires careful examination of plants and growing sites, as well as knowledge of site history. Nevertheless, diagnoses may be difficult, as the original cause(s) of plant stress may be obscure or no longer present. Some of the most common plant stresses are addressed in this publication. A wider range of possible causes of plant stress and decline should be considered during evaluation of woody plant material.