Wind Interaction

COMMENTARY

• Wind blows over tree canopies rather than thru it
• Attention needed to the outer third of branches to reduce wind resistance
• Problematic tree structures
  • Long horizontal branches swaying creates end weight stress
  • Lion Tailing removing lower branches with a weak top
• Improper cuts called ‘ram horn’ expose trees to decay and disease
• Trees compartmentalize pruning wounds by growing around them

Urban Tree Environment

COMMENTARY

• Urban trees require compromises due to street and utility line clearances
• Urban trees often suffer from limited soil space and poor watering
• Using a winch is an effective method to remove invasive trees without harming established trees
• The right tree for the right place is crucial for urban tree longevity and health
• Andy and Anjuli talk about their favorite trees

CALLER

• Anne has a well established producing orange tree with an invasive tree that has grown over time under it. How can she get rid of it without hurting the orange tree

Tree Tips For Success

COMMENTARY

• Protect young tree trunks from sun scald with breathable tree wraps or temporary shade
• Discussion of staking a newly planted young tree with a strategic approach for success
• Monsoon preparation includes ensuring young trees are adequately braced against wind damage
• Palm trees require pruning mid-summer to manage flower production and remove hazardous dead skirts

CALLER

• Ken in Mesa has a red push pistache 24 gallon tree. What can you do to protect the trunk? Tree wrap or paint it?