Ash Die back Chalara identification in Winter

Helpful information from the Forestry Commission 

client feedback on dangerous Tree removal works in a conservation area


Your boys did a good job as ever - the lead hand is a particular credit to your organisation - his conduct and attitude are exemplary.

he was the climber and drove the pick-up – he had been before, to do the big tree in the corner but don't think he did the climbing in that case


UK establishment of horse chestnut tree pest

A programme to recruit the public in monitoring the horse chestnut leaf miner moth (Cameraria ohridella) has led to greater understanding of the pest's establishment in new areas.

Researchers Michael Pocock of the Centre for Ecology & Hydrology and Darren Evans of the University of Hull recruited around 3,500 people to the Conker Tree Science project in 2010.

The data they submitted confirmed that

  • levels of damage to horse chestnut leaves were greatest where C. ohridella had been present the longest;
  • the level of attack C. ohridella by parasitoids were also greatest where it had been present the longest. 

"There was a rapid rise in leaf damage during the first three years that C. ohridella was present and only a slight rise thereafter," the researchers deduced from the data.

Meanwhile, rates of parasitism increased from 1.6 to 5.9 per cent between the third and sixth years of its establishment.

They added: "We suggest that this increase is due to recruitment of native generalist parasitoids, rather than the adaptation or host-tracking of more specialized parasitoids, as appears to have occurred elsewhere in Europe."

Public participants tended to under-report parasitoid activity compared with experts, which was accounted for in the analysis, they added.

On the practical value of the approach, they concluded: "With appropriate checks for data quality, and statistically correcting for biases where necessary, hypothesis-led citizen science is a potentially powerful tool for carrying out scientific research across large spatial scales while simultaneously engaging many people with science."

operational Tree work IT support

Oakdale Ne Ltd Tree surgeons have commissioned a specialist IT consultant to develop our field documentation into a PDA which can capture, relay & enhance information to ease the flow of information to and from the operational teams with our office  IT systems. 

more job opportunities at Oakdale

Oakdale are recruiting Arborists  - Tree surgeons,  employed and sub contractors

please contact our office 01287 644555  This email address is being protected from spambots. You need JavaScript enabled to view it. for an application form 

We  provide quality arboricultural services to the Commercial, Social Housing, public sector and domestic markets within the North East primarily within the Cleveland Tees valley & Yorkshire areas.


We are proactive within this market place with a proven client base and have a number of on going contracts over the next 2-3 years.


We are currently seeking experienced proficient climbingArborist's to join our team to undertake varied and interesting works. Also sub contract climbers are required.


Applicants should be reliable, punctual, motivated and have proven experience in all aspects of commercial tree work delivering high standards of work including pruning,  through to the sectional felling of larger trees.


Appropriate NPTC certification and a driving license with B&E entitlement is required.

An understanding of relevant health and safety legislation, and the ability to apply safe working practices.


Remuneration is dependent upon ability, qualifications and experience.

PPE, Equipment, Annual Leave and development opportunities are all provided.


In the first instance please e-mail This email address is being protected from spambots. You need JavaScript enabled to view it. or telephone on 01287 644555 for further details and an application form.


The role will develop and options for promotion are available to assist in more managerial and or training roles, dependent on the candidates abilities and skills