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Pretzsch, H., Biver, P., Uhl, E., Dahlhausen, J., Rötzer, T., Caldenty, J., Koike, T., Van Con, T., Chavanne, A., Seifert, T., Toit, B., Farnden, C., & Pauleit, S. (2015). Crown Size and Growing Space Requirement of Common Tree Species in Urban Centres, Parks, and Forests. Urban Forestry and Urban Greening, 14, 466-479.
https://doi.org/10.1016/j.ufug.2015.04.006

has been cited by the following article:

• TITLE: Damaging Agents and Tree’s Health Condition in an Urban Forest

  AUTHORS: Luz de Lourdes Saavedra-Romero, Tomás Martínez-Trinidad, Dionicio Alvarado-Rosales, Patricia Hernández-de la Rosa, Jaime Villa-Castillo

  KEYWORDS: Damaging Agents, Urban Trees, Bleeding, Cankers, Galls, Health Categories, Damage Severity Index

  JOURNAL NAME: Open Journal of Forestry, Vol.11 No.3, July 6, 2021

  ABSTRACT: Urban trees are subjected to different damaging agents throughout their lifetime. The aims of this study were to identify tree damaging agents, and to obtain a Damage Severity Index (DSI) in order to categorize tree health condition at San Juan de Aragon Park. Each tree was identified at species level in 28 randomly established plots in ten sections of the study area. Up to two types of damage were recorded per tree, based on the FIA (Forest Inventory an Analysis Program) protocol, and a DSI was obtained for each damaged tree considering location of damage, nature of the damaging agent and severity. A total of 753 trees were assessed and 12 species and 27 damaging agents were identified. Cankers, galls, the pepper tree psyllid and the red gum lerp psyllid were the most frequent damaging agents. Australian pine, red gum, Mediterranean cypress, Mexican white cedar, and California pepper were the most affected species. The DSI ranged from 3 to 17 and the average was 7.9. Sections J and H and the species California pepper, Australian pine, and Mexican white cedar presented the highest DSI. The tree population had a moderate health condition, while the aforementioned sections and tree species showed the poorest.