2022-04-06 P & R Packet - Laserfiche WebLink

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The proposer must have at least one person available to GPS each tree injected on private property for inclusion in the city's tree inventory. Each proposer must provide a list of three (3) municipal or public agency references. Tree inspections Tree inspections shall be performed prior to recommending treatment to residents. These inspections must be performed by a person who is at minimum, a Certified MN Tree Inspector or an ISA Certified Arborist. Individuals recommending treatment must be qualified to identify emerald ash borer in the field and have experience evaluating tree condition, particularly as it relates to determining which trees are suitable candidates for injection and which are not. Treatment of trees exhibiting the following conditions must be approved by the City Forester: • More than 30% canopy decline • Signs of severe decay in trunk or major branches • Major cracks in trunk or major limbs • Fungal fruiting bodies present on trunk INJECTION DETAILS Chemical • Injections must be with a liquid formulation of 4% emamectin benzoate • All label directions for chemical product used must be followed. • At a minimum, trees less than 22 inches DBH shall be treated with 2.5 ml of 4% emamectin benzoate solution/inch DBH, trees greater than 22 inches DBH shall be treated with 5 ml of 4% emamectin benzoate solution/inch DBH. City trees The City may be utilizing contractor tree injection services for 0-100 trees on any given year. In 2020, the City treated 100 trees at approximately 1,500" DBH total. The City intends to continue to treat boulevard trees with City staff, but may supplement these treatments with contractor - performed injections. Contractor injections may not be required at all, they may account for a portion of injections, or they may perform all injections on City trees. Decisions about which City trees to treat, if any, will be at the sole discretion of the City. Residents' trees Injections performed on residents' privately owned trees will be driven by public demand, so numbers of treatments for these trees will not be available at this time. Boulevard trees in the