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I L24. Weed Control: Maintain all tree and shrub beds in a weed free condition by hand pulling or chemical control, at each maintenance visit. For trees and palms within lawn area, spray area 2" away from trunk with Round-up by Monsanto Manufacturing Company. Do not spray tree leaves, suckers, or open wounds. Do not use weed-eater or string trimmers for trees and palms within lawn area in order to avoid trunk damage. No green weeds shall be visible in any landscape beds on the final day of each month. L25. All weeds that appear within sidewalk or curbing expansion joints are to be continually controlled through the use of herbicide. L26. Preventive spraying for insect control shall adhere to the following guidelines. L26.1 Lawn: Spray all lawn and athletic field areas as required, for control of all chinch bugs, army worms, sod webworm, fungus, fire ants, and other pests. Spraying shall be accomplished (at Contractor's expense) by State of Florida and Dade County licensed pesticide control company, using Integrated Pest Management Principles. L26.2 Shrubs: Spray shrubs and ground cover (excluding bougainvillea), as needed, with insecticide. Follow manufacturer's instructions for application, using Integrated Pest Management Principles. L26.3. OTC (Lethal Yellowing) injections: Upon evidence of lethal yellowing, immediately begin (4) gram injection, per palm, of OTC tree injection formula (Tree Saver Inc. or equal). Follow manufacturers recommendations re: injection method and frequency. L26.4. Red Eye Royal Palm Bug: Upon evidence of deterioration of the head of the palm, begin a 5 gallon per palm soil drench with Merrit soil drench. Perform a second soil drench within 21 days. Follow manufacturers' recommendations re: installation methods. L26.5. In some heavy infestations, a foliar application of Cygon is recommended for immediate results. Drench head of palm until runoff occurs and repeat foliar spray within 21 days. NOTWITHSTANDING ANY LANGUAGE IN THIS CONTRACT, ALL CHEMICAL APPLICATIONS SHALL REQUIRE WRmEN APPROVAL BY CITY PRIOR TO APPLICATION. CONTRACTOR SHALL SUBMIT YEARLY, QUARTERLY, AND MONTHLY CALENDARS FOR APPROVAL PURPOSES RELATING TO CHEMICAL APPLICATIONS AND LOCATIONS. L27. All mowers must be rotary mowers with a maximum of a 72" cut. They shall be adjusted to 2 1/2" or 3" cutting height as directed by City, shall be in good repair, shall have no oil or gas leaks, and shall be equipped with grass catchers and sharp blades. Mower blades shall be sharpened or new prior to each cut. All rotary mowers must be mulching-type mowers with no discharge allowed, or all clippings must be manually removed. All equipment must be maintained in sound working condition in order not to exceed comfortable decibel levels or as determined by the City at its sole discretion. Edgers shall be in good repair, shall have no oil or gas leaks, and shall provide a clean straight edge not more than 1/2" away from walks and edge of pavement. L28. Premium 'Red' or Premium 'Gold' colored mulch (provide evidence of type and grade of mulch, to City, prior to delivery, for approval by City's' Landscape Architect). Color to be specified by City. Mulch shall be placed around all planting areas not covered by shrubs, ground cover, or existing mulch (two times per year, or as directed by City), so as to effect a 2.5" mulch depth. Mulch shall be installed so as to not be within 3" of base of plant material. Contractor PAGE 37 OF 105 PROPOSAL No.