Tree Appraisal - Trunk Formula Method

[niceviews]

So I have my first tree to appraise and was looking for the trunk formula method that Ive heard about before, but was having some trouble finding some specifics of it. I understand that species, location, and health are the big factors, along with dbh, but Im not seeing exactly how or what formula to plug it into. If someone could help point me in the right direction, it would be greatly appreciated.

 

[Jubea]

Guide for Plant Appraisal

 

[guymayor]

Why are you looking for that method?

not saying it's wrong, just that there are different methods for different situations.

they're in the book Jubea linked.

 

[mpriley02]

You also need the rating guide for the south. I can loan you both if you'd like. The books are pretty straightforward, but I can give you a quick lesson, too.

 

[guymayor]

Nice offer; take him up on it! Rating guide may be useful but not needed..

 

[niceviews]

So here is the situation. The client has a dead Red Oak in their yard, about 24'' dbh, and is the only mature tree in the yard. Their insurance said they would help cover the cost of removal, but they wanted an appraised value of the tree. Would it be better to use a different method? or stuck with the trunk formula method? The only other method Ive seen was based on the value of the home and the percentage of lost landscape. One question I do have with the trunk formula in this case is the condition factor. Should I assume a value of 100% trying to appraise the value of a perfectly healthy tree this size? Obviously if the tree is dead and the condition is 0, then the value would be $0.
Thanks for the help.