Aborist Report · OPW24/0017

The Visual Tree Assessment (VTA) methods as described in ‘The Body Language of Trees. A Handbook
for Failure Analysis. Research for Amenity Trees’ by Mattheck and Breloer (Mattheck, et al., 1994) is
used in association with the International Society of Arboriculture’s guidelines in this report.

196 THE BODY LANGUAGE G

 

 

 

 

 

  

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© ROOT BUTTRESS
© SAILAREA

@ BOTTLE-BUIT

@ SOIL CRACKS

 

 

© VITALITY BREAKAGE WIND THROW
- eaves
- bark
~ tw DEFECT
“ SYMTOMS
FUNGI - bulges
@ FUNG! 7bus
© OLD BRANCHES WOUNDS
@ LEANING
‘© BRANCHES: @BARK CRACKS
‘SUBSIDING @ OTHER ABNOR-
MALTHINGS
WOUND T
OCCLUSION

 

 

 

© KNOCKING WITH
HAMMER

© SOUND VELOCITY
MEASUREMENT

}@ RESISTOGRAPH

 

 

 

NOCKING

® SOUND VELOCITY
MEASUREMENT

‘@ REMOVE SOIL

ESISTOGRAPH

 

 

 

 

 

Fig 120. The Visual Tree A. nent (VTA) procedure for assessing trees.
As the suspicion increases that defects are present, the examination becomes

more thorough and searching.