Resources by Elizabeth Bush
Title | Available As | Summary | Date | ID | Author |
---|---|---|---|---|---|
Bacterial Leaf Scorch of Landscape Trees | Dec 7, 2018 | 3001-1433 (SPES-83NP) | |||
Instructions for Completing the Plant Disease Diagnostic Form (#450-097) | The Plant Disease Diagnostic Form was designed to accommodate a wide variety of plants and growing situations; therefore, certain entries on this form may not be appropriate for a particular specimen or situation. Much of the information requested helps reconstruct the "field situation" for the diagnostician. Consider each section of the form carefully; the information provides important clues to the diagnostician that are significant in guiding the diagnostic process and formulating the control recommendation. Your local Extension office staff can assist you in completing the form and include the relevant information requested on the form, so when possible, complete the form with the assistance of your local VCE agent or VCE staff member. |
Sep 2, 2023 | 450-097-A (SPES-512NP) | ||
Anthracnose on Snap Beans | Anthracnose is a major disease of the common snap
bean (Phaseolus vulgaris) and can occur on other
legumes. It is caused by the fungus Colletotrichum
lindemuthianum. When environmental conditions are
favorable, crop losses can be as high as 100 percent on
susceptible cultivars of snap beans. |
Jul 30, 2019 | 450-719 (SPES-157NP) | ||
Brown Rot on Peach and Other Stone Fruits | Brown rot is one of the most destructive diseases of peach and nectarine in Virginia, and also occurs on other stone fruits such as apricot, cherry, and plum. When environmental conditions favor this disease, crop loss can be devastating. |
Mar 18, 2020 | 450-721 (SPES-24P) | ||
Reducing Pesticide Use in the Home Lawn and Garden | Pesticide use affects the quality of human health, the environment, and nontarget organisms in the ecosystem. Therefore, any pesticide application warrants a careful assessment of the expected benefits and risks. Too often, however, homeowners use pesticides inappropriately or without careful consideration of alternatives. This fact sheet outlines general pest control tactics that can easily be implemented for home lawns and gardens, along with other information that home owners can use to make sound pest management decisions. The intent is to ensure that homeowners are aware of alternative control tactics and pesticide characteristics, and that pesticides are used properly and only when necessary. |
Sep 11, 2018 | 450-725 (SPES-22P) | ||
Botryosphaeria Canker and Dieback of Trees and Shrubs in the Landscape | Most trees and shrubs are susceptible to dieback and cankers caused by several species of the fungal genus Botryosphaeria. Botryosphaeria fungi are typically opportunistic pathogens. Opportunistic pathogens only cause disease on plants that are stressed. Therefore, avoiding plant stress, which predisposes plant tissue to infection and colonization by this fungal group, is the best strategy to prevent Botryosphaeria disease problems. |
Mar 18, 2020 | 450-726 (SPES-23P) | ||
2023 Pest Management Guide - Horticultural and Forest Crops | Feb 23, 2023 | 456-017 (ENTO-524P) |
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2023 Pest Management Guide - Home Grounds and Animals | Feb 13, 2023 | 456-018 (ENTO-523P) | |||
Late Blight of Tomato and Potato | Nov 20, 2018 | ANR-6 (SPES-72P) | |||
Best Management Practices for Boxwood Blight in the Virginia Home Landscape | This Best Management Practice document is a set of guidelines for home growers of landscape boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the disease is already present in a landscape, to manage the disease in the most effective manner and avoid spread of the disease to new locations. |
Jan 5, 2021 | PPWS-29NP (PPWS-85NP) | ||
Virginia Boxwood Blight Task Force | To provide leadership in safeguarding and protecting the ornamental horticulture industry,
historical gardens and landscape plantings from boxwood blight. |
Jul 1, 2019 | PPWS-30 | ||
Best Management Practices for Boxwood Blight in Virginia Production Nurseries WITH Boxwood Blight | This Best Management Practice document is a set of guidelines for home growers of landscape boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the disease is already present in a landscape, to manage the disease in the most effective manner and avoid spread of the disease to new locations. |
Feb 16, 2021 | PPWS-32NP (PPWS-87NP) | ||
Best Management Practices for Boxwood Blight in Virginia Production Nurseries WITHOUT Boxwood Blight Version 2, September 2016 | This Best Management Practice document is a set of guidelines for home growers of landscape boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the disease is already present in a landscape, to manage the disease in the most effective manner and avoid spread of the disease to new locations. |
Jan 5, 2021 | PPWS-33NP (PPWS-86NP) | ||
Best Management Practices for Boxwood Blight: Best Management Practices for Virginia Retail Nurseries WITH Boxwood Blight | This Best Management Practice document is a set of guidelines for home growers of landscape
boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the
disease is already present in a landscape, to manage the disease in the most effective
manner and avoid spread of the disease to new locations. |
Jan 6, 2021 | PPWS-34NP (PPWS-89NP) | ||
Best Management Practices for Boxwood Blight: Best management Practices for Virginia Retail Nurseries WITHOUT Boxwood Blight | This Best Management Practice document is a set of guidelines for home growers of landscape
boxwood to avoid introduction of the boxwood blight pathogen into a landscape or, if the
disease is already present in a landscape, to manage the disease in the most effective
manner and avoid spread of the disease to new locations. |
Jan 6, 2021 | PPWS-35NP (PPWS-88NP) | ||
Best Management Practices for Boxwood Blight for Greenery Producers | Best management practices for boxwood blight (also called “box blight”) for
greenery producers are practices recommended to avoid the introduction and
spread of boxwood blight, caused by the fungus Calonectria
pseudonaviculata (syn. Cylindrocladium pseudonaviculatum). The
recommendations in this document are designed to avoid spread of boxwood
blight within a planting or to new locations when pruned tips are
collected, sold and/or used for holiday greenery1. These recommendations
are relevant to anyone involved in the greenery (“tipping”) industry,
including small and large-scale greenery producers, home growers who sell
boxwood tips, and people who tip-prune boxwood on other people’s property.
Care must be taken at all levels of greenery production to prevent the
spread of the boxwood blight pathogen and avoid economic losses associated
with this disease. |
Jan 6, 2021 | PPWS-39NP (PPWS-95NP) | ||
Mortality of Great Rhododendron (Rhododendron maximum) in Virginia | Since 2015, Extension specialists from Virginia Tech (VT) have visited and collected plant and soil samples from several large areas of dying great rhododendron (Rhododendron maximum) in Virginia’s mountainous regions. In 2016 VT specialists met with Virginia Department of Forestry, US Forest Service personnel, and other experts to revisit some of these sites. No consistent cause of this mortality has yet been identified. It is possible that a variety of factors are stressing the rhododendrons in these areas to a point where opportunistic pathogens or insects can successfully attack and kill them. The following information summarizes our observations and diagnostic results from four separate great rhododendron mortality sites in Virginia. This information is not equivalent to a research study, which would also include samples taken from healthy great rhododendron for comparison; however, we are confident that we have ruled out two diseases that are frequently mentioned both online and anecdotally as a cause of this mortality, specifically Phytophthora root rot and Botryosphaeria dieback. |
Aug 21, 2019 | SPES-151P | ||
Fusarium Wilt of Mimosa (Albizia julibrissin) | Aug 13, 2020 | SPES-230NP | |||
Vascular Streak Dieback: An Emerging Problem on Woody Ornamentals in the U.S. | May 17, 2023 | SPES-483P | |||
Vascular Streak Dieback: An Emerging Problem on Woody Ornamentals in the U.S. | May 17, 2023 | SPES-483P |