Overall Rating Silver
Overall Score 46.12
Liaison Deborah Steinberg
Submission Date March 1, 2018
Executive Letter Download

STARS v2.1

Knox College
OP-9: Landscape Management

Status Score Responsible Party
Complete 0.81 / 2.00 Deborah Steinberg
Director of Campus Sustainability Initiatives
Office of Sustainability
"---" indicates that no data was submitted for this field

Total campus area (i.e. the total amount of land within the institutional boundary):
787 Acres

Figures required to calculate the total area of managed grounds:
Area (double-counting is not allowed)
Area managed in accordance with an Integrated Pest Management (IPM) program that uses a four-tiered approach 23 Acres
Area managed in accordance with an organic land care standard or sustainable landscape management program that has eliminated the use of inorganic fertilizers and chemical pesticides, fungicides and herbicides in favor of ecologically preferable materials 1 Acres
Area managed using conventional landscape management practices (which may include some IPM principles or techniques) 7 Acres
Total area of managed grounds 31 Acres

A brief description of any land excluded from the area of managed grounds (e.g. the footprint of buildings and impervious surfaces, experimental agricultural land, areas that are not regularly managed or maintained):

700 acres of campus land are the biological field station, which is not managed grounds. The remaining land is buildings.


Percentage of grounds managed in accordance with an IPM program:
74.19

A copy of the IPM plan or program:
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A brief description of the IPM program:

The College uses the four-tiered IPM approach for the 7 acres of athletic fields we have as well as the approximately 23 acres of grounds on campus. Chemical control is always the last resort. We have visual thresholds and monitor fungal and insect pest damage. We try to maintain healthy plants with limited excess nutrient availability. Only in situations where weather or density will not control an issue do we use chemical control to prevent loss of turf. No control is used on trees or non-turf plant material.

The 23 acres of grounds on campus are not treated with chemical pesticides.

The Green Oaks Biological field station includes a restored prairie that is burned annually, as well as old-growth and new-growth forests that are managed for biodiversity. The property is carefully managed for invasive species with mechanical methods and occasional targeted herbicide applications.


Percentage of grounds managed in accordance with an organic program:
3.23

A brief description of the organic land standard or landscape management program that has eliminated the use of inorganic fertilizers and chemical pesticides, fungicides and herbicides in favor of ecologically preferable materials:

The farm is managed using a sustainable landscape management program that has eliminated the use of inorganic fertilizers and chemical pesticides, fungicides and herbicides in favor of ecologically preferable materials.


A brief description of the institution's approach to plant stewardship:

Existing plant material is almost always reused on campus. There are a few times every year when plants have to be removed due to construction or projects. When this happens we do our best to transplant the material in another appropriate location. The removal of plant material is only considered when safety is concerned. Although not a popular choice, occasional trees must be removed if they are deemed unsafe. This recommendation is usually given by a certified arborist if it is not immediately obvious. Most of the plantings on campus consist of a mix or solely of native material. Plant selection is the most important part of IPM. There are a few invasive species that we deal with on campus. In the case of Japanese beetles we occasionally have to use chemical treatment to save existing plants. Most invasive weeds are controlled by maintain healthy turf through proven cultural practices.


A brief description of the institution's approach to hydrology and water use:

More efficient sprinkler heads (less water but more coverage), allow soaking time to prevent runoff.


A brief description of the institution's approach to materials management and waste minimization (e.g. composting and/or mulching on-site waste):

Grass clippings are left on all lawns, branches and other yard waste is mulched.


A brief description of the institution's approach to energy-efficient landscape design:

We have implemented an in-house policy that for every mature tree removed, we replace it with two trees.


A brief description of other sustainable landscape management practices employed by the institution (e.g. use of environmentally preferable landscaping materials, initiatives to reduce the impacts of ice and snow removal, wildfire prevention):

Grounds uses a calcium chloride-based product to melt icy sidewalks but uses sand whenever possible to avoid use of salt.


The website URL where information about the programs or initiatives is available:
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Additional documentation to support the submission:
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The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.