Specifications include, but are not limited to: 5.1 An establishment and maintenance period for all tree plantings will coincide with the warranty period detailed in Specification 4 and shall extend for a period of two (2) years. 5.2 Tree establishment and maintenance shall consist of keeping trees watered (water bags filled) and weed free, checking/adjusting stakes, reapplying mulch, removing broken/twisted/damaged branches, and removing suckers as needed. 5.3 Vendor shall provide all equipment, labor, materials, and supplies needed to perform required tree establishment and maintenance services. 5.4 All necessary traffic control (barricading and signage) to perform tree maintenance services in the City ROW shall be done in conformance with the “Manual on Uniform Traffic Control Devices” and the City of Lincoln “Traffic Control Guidelines for Street Construction, Maintenance and Utility Construction”. 5.5 Spring season (April-May) maintenance activities shall include the following. 5.5.1 Apply wood chip mulch ring to all trees, three (3) inch minimum thickness. 5.5.2 Remove all suckers and broken or twisted branches from trees. 5.5.3 Remove any debris from trees and tree rings (i.e. plastic bags, trash, etc.). 5.5.4 Check tree stakes and ties, repair/adjust as needed. 5.5.5 Control weedy grasses and weedy broad leaves in all mulched areas.