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STATUS OF THE URBAN FOREST (PUBLIC AND PRIVATE TREES) <br />Tree condition of the City's inventory varied, with roughly <br />12% rated as good, and 83% as fair, and 4% rated poor, <br />critical, or dead. The most common health defects observed <br />in these trees included drought stress, decay, and poor root <br />function, and various pest and pathogen problems. The <br />most common structure defects included cavities, dead <br />limbs or branches, leaning, topping, and issues with branch <br />unions and root systems. Table 2-11 shows that the relative <br />distribution of the various tree conditions is mostly the same <br />for all age categories. The only exception to this is that <br />immature age trees (the trees that have been most recently <br />planted by the City) have the highest relative percentage of <br />trees in `good' condition at 22% (compared to 7% and 9% for <br />the other age categories) and the lowest relative percentage <br />of trees in `fair' condition at 73% (compared to 83%, 87%, <br />and 88% for the other age categories). This distribution of <br />conditions makes sense for immature trees as 1) they should <br />be starting in a good condition coming straight from the tree <br />nursery, and 2) they haven't developed mature canopies that <br />might have more obvious structural issues or outgrown their <br />planting spaces. Mortality of these immature trees is likely <br />between 1 and 5% depending on how many of these trees in <br />the `critical' and `poor' categories survive to maturity. <br />Table 2-10. Tree Conditions of the Pleasanton Inventory <br />.M. IF Number of TreesPercent <br />Good <br />2,934 <br />12.4% <br />Fair <br />19,642 <br />82.8% <br />Poor <br />803 <br />3.4% <br />Critical <br />io8 <br />0.5% <br />Dead <br />159 <br />0.7% <br />Source: City of Pleasanton Tree Inventory (Dudek 2024) <br />134 1 CITY OF PLEASANTON URBAN FOREST MASTER PLAN <br />