Before, during and after.

[John Hancock]

Nice old Oak pollard in Warndon Villages, Worcester. The spec was a 30% crown reduction, partly to take weight off those large old limbs but also because of a questionable subsidence issue on a conservatory at the house on the left of the picture.

 

Climber was Matthew, all work carried out with a Silky. Think we ended up with about 25% in the end, anymore and it would have looked awful.

 

The work was carried out without prejudice.

 

I’ll look at the tree again in two years time and see if there is an inner crown is developing, if there is we’ll take a little more off.

[Steve Bullman]

looks lovely mate

[Will Hinchliffe]

Very nice!

[Big 'Ammer]

You'll be pleased with that. Tidy job John.

[Rich Rule]

nice work John and the gang

[benedmonds]

Nice old Oak pollard in Warndon Villages, Worcester. The spec was a 30% crown reduction, partly to take weight off those large old limbs but also because of a questionable subsidence issue on a conservatory at the house on the left of the picture.

 

Hortlink, research sugest 70-90% reduction required to have any impact on tree induced subsidence.. So what you've done is fine for endweighting and looks good but if your doing it to prevent subsidence it's not nearly enough..

[Tree Man Tom]

70-90% reduction, getting to the stage of pollarding it arnt you when you talk about Those kinda numbers?

[Tommy_B]

Very nice job John. Looks cracking

[Mesterh]

Very nice looking job there:thumbup1:

[benedmonds]

70-90% reduction, getting to the stage of pollarding it arnt you when you talk about Those kinda numbers?

 

Not my numbers, from the BRE:

 

Pruning trees to reduce water use

Summaries of research; conclusions and

recommendations IP7/06

Hipps, Atkinson and Griffiths

 

Recommendations

● For consistent soil moisture conservation,

severe crown reduction of 70–90% of crown

volume would have to be applied. Reduction of

up to 50% crown volume is not always effective

for decreasing soil drying

● To ensure a continued decrease in canopy leaf

area and to maximise the period of soil moisture

conservation, crown reductions should be

repeated on a regular managed cycle with an

interval based on monitoring regrowth

● Crown thinning may be aesthetically desirable

but is not an effective method to control soil

drying by trees

 

Basically reducing trees to prevent subsidence is not an option..