Specifications include, but are not limited to: A. Inspect landscaped/vegetated areas, then weed and remove moss; trim, and remove new or dead growth so walkways, sidewalks and rocked areas are kept clean and look well-cared for. B. Lawns, bedded areas, fence lines, asphalt and concrete pads shall be kept weed, grass and moss free by hand or use of herbicides approved WSI Facility Management. NOTE: Contractor shall be responsible for removing weeds, grass or moss in passenger loading and parking areas. C. Rake all bedded areas as often as required to ensure a fresh appearance. Re-rocking of any location will be at the discretion of WSI Facility Management and will be covered under a separate purchase order. D. Sweep or blow clean all sidewalks and/or concrete areas affected by work. All debris shall be removed from the site. E. Lawns to be mowed every 7 days during the growing season. Grass shall not be cut closer than 1" nor shall it be longer than 1-1/2 inches in height after each cutting. The mower blades shall be kept sharp to prevent shredded grass tips that turn brown. Grass clippings to be bagged and removed from the site after each mowing cycle. F. Edging around lawn perimeters, sidewalks, and bedded areas shall be done once a season. G. Remove any thatch over ½ inch in depth from turf areas once annually in the spring with Facility Management authorization. H. Trees, shrubs and ground cover: weed, pest and disease control. • WSI Facility Management strongly encourages environmentally sensitive maintenance practices. Under no circumstances utilize preventative "blanket" applications of herbicides, fungicides or insecticides without prior approval of WSI Facility Management. Provide WSI Facility Management a minimum of 48 hours notice prior to large-scale applications. All chemicals must be EPA approved and applied by a licensed North Dakota Applicator per the manufacturer's recommendations. All chemicals used must have a Material Safety Data Sheet (MSDS). • Apply insecticide or fungicide to trees, shrubs and ground covers only when significant plant damage would result from not addressing the infestation. Base pest and disease control program on site historical data. Facility Management authorization required before any applications. • Keep planter beds and tree wells free of weeds and debris on a weekly basis throughout the growing season. Control weeds with contact spray herbicide, hand-weeding and selective use of pre-emergent herbicides where no vegetation is desired (bed edges, tree wells, mulch only beds without ground cover). Pre-emergent weed control chemicals may only be used on sites with at least two years of plant establishment. Apply only at manufacturers approved rates to avoid soil toxicity. Verify that herbicide is appropriate for use with various plant materials. Contractor is responsible for any damages incurred as a result of herbicide application and must repair or replace any such damage at no cost to WSI Facility Management. • Control of major disease and insect infestations for trees, shrubs and ground covers is not a part of the Contract. Regularly monitor all plant material and immediately notify owner of any need for such control. Contractor is responsible for any damage to plant material incurred as a result of failure to immediately notify WSI Facility Management of correctable disease and/or insect problems, and must replace any such damaged plant material at no additional cost to WSI Facility Management .Prune trees, vines, and shrubbery in the fall, after the typical growing season. Pruning during growing season shall occur as needed to ensure the following standards are met: • Remove dead, damaged and diseased portions of plants • Prune shrubs to maintain their natural shape • Shrubs are not to be allowed to grow together unless designed to do so as a hedge • Shrubs around the Century Center building will be kept pruned to no higher than the building window sills • Other hedges shall be kept trimmed to no more than 3-4 feet in height • Other shrubs will be kept pruned to no higher than 2-½ feet above the ground or as specified by WSI Facility Management • Trees, shrubs and ground cover must be kept off fire hydrants, signs, fences, walls, sitting areas, walkways and driveways.
