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Turning observations into information for over ten years


Pruning Cuts and Compartmentalization of Decay in Trees (CODIT)
Proper pruning is essential to tree health, structural integrity, and longevity. Understanding the anatomical features of branch attachment and the biological mechanisms by which trees respond to injury allows practitioners to minimize damage and reduce the risk of decay. Central to this understanding is the concept of CODIT, or Compartmentalization of Decay in Trees, which describes how trees limit the spread of injury and decay rather than repairing damaged tissue.
Roger Erismann
3 days ago2 min read


California Buckeye (Aesculus californica): A poisonous California native.
The California buckeye is a deciduous, woody shrub or small tree, typically 12 to 36 feet tall, though exceptional specimens can exceed 40 feet. It displays a broad, rounded crown and distinctive palmately compound leaves with 5 to 7 finely serrated leaflets. Its showy floral display — dense, upright panicles of white to pale rose flowers up to a foot long — blooms from May through June, with some variation based on climate.
Roger Erismann
Aug 2, 20254 min read
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