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Horticulture and Urban Forestry Publications Publications
Listed below are publications offered through the Knox County Extension Service. Most publications are in Adobe PDF format which require the free Acrobat reader. Click on the title of a publication to download. |
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No-Spray Roses for the Southeastern US
A no-spray rose trial has been conducted
at the West Tennessee Research
and Education Center
(WTREC) in Jackson, TN since
2006. In 2007, sites were added at the
Plateau Research and Education Center
(PREC) in Crossville, TN and the
Thad Cochran Horticultural Research
Laboratory (TCHRL) in Poplarville,
MS. A total of 136 cultivars were
evaluated in at least two of the three
test locations. Roses with superior
resistance (less than 2% foliage infected)
to black spot and cercospora
leaf spot (table 1) were considered
no-spray roses (do not require
fungicides for clean foliage). Roses
rated moderately resistant (less than
10% foliage infected) may need limited
spraying to maintain clean foliage.
Tolerant roses (Table 2) are susceptible
to black spot and/or cercospora
leaf spot, but may defoliate, while
blooming well all summer.
Contact: David Vandergriff
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Plants for Problem Places
A isting of specific plants for problem areas.
Contact: David Vandergriff
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Understanding Public Opinion and Support for the Maintenance and Protection of Trees in Knox County, Tennessee
A mail survey of 2,400 Knox County Single family households to identify public opinions toward local tree-related issues, gauge public support/opposition for local tree policies, determine the level of awareness of local tree-related issues, determine the level of public awareness and knowledge about trees in general, construct a sociodemographic profile of the average survey respondent, and determine how sociodemographic characteristics among homeowners influence public opinion and support for the maintenance and protection of trees.
Contact: Kimberly L. Davis, P.E.
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