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ABOVE: The climber uses rope and saddle to safely maneuver around a California sycamore during a pruning operation.

RIGHT: Oak wax scale, Cerococcus quercus, is a sucking insect. This colony was found on a mesa or Engelman oak, Quercus engelmannii. Its primary hosts are scrub oaks (Q. dumosa & Q. berberidifolia). They are about 4 to 4.5 mm in diameter. A scale may be commonly found with a small circular hole in the outer shell indicating it has been parasilized (where a predatory insect has used the scale in its own reproductive cycle). The scale has a minimal affect on its host. Spraying is not recommended as it upsets the natural balance, killing the predator as well as the prey.

TREE TIPS

• Residential
• Commercial
• Property management companies
• Home Owners Associations
• Government and Municipalities
• School district

Oak root fungus, Armallaria mellea.
Not what you want to see popping around your trees.
This fungus kills many other trees beside oaks.

Crew posing in the large crotch of the historic Poway sycamore, Plantanus racemosa, after spending all day pruning & restoring it.
This was a co-champion big tree.