Jump to content

Search the Community

Showing results for tags 'disease'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • Tree Care Forum
    • General chat
    • Climbers talk
    • Tree health care
    • Trees and the Law
    • Homeowners Tree Advice Forum
    • Forestry and Woodland management
    • Firewood forum
    • Training & education
    • Business Management
    • Employment
    • Arb-Trucks
    • Large equipment
    • Maintenance help
    • Chainsaws
    • Stolen Equipment
    • Milling Forum
    • Chainsaw Carving Forum
    • Woodcraft Forum
    • International Arborist Forum
    • Landscaping
    • The Lounge
  • Sponsored Forums
    • Lister Wilder
    • Buxtons
    • Sorbus International Ltd
    • Treeshirtz
    • F.R.Jones & Son
    • Clark Forest
    • Predator
    • Spectrum Plant
    • Gustharts
    • Chainsawbars
    • Multione
    • Skyland Equipment
    • Forest and Arb
    • Treekit
    • Aspen Fuel
    • AJS Dolmar
    • Arborist Apps Support Forum
    • The Official Essential Arb Forum
    • Other offers
  • Arbtalk Technical Help Centre
    • Timberwolf
    • Greenmech
    • Forst Woodchippers
  • Associations & Organisations
    • AA
    • Arb Approved Contractor Forum
    • CAS
    • FCA
    • ISA
  • Past Events
    • Past Competitions
    • Christmas Charity Raffle 2007
    • Christmas Charity Raffle 2008
    • Arbtalk Christmas Raffle 2009
    • Arbtalk Christmas Charity Raffle 2010
    • Arbtalk Christmas Charity Raffle 2011
    • Arbtalk Christmas Charity Raffle 2012
    • Arbtalk Christmas Charity Raffle 2013
    • Arbtalk Christmas Charity Raffle 2014
    • Arbtalk Christmas Charity Raffle 2015
    • Arbtalk Christmas Charity Raffle 2016


  • Arborist Equipment
  • ArbTrucks/Vehicles
  • Arborist Machinery
  • Chainsaws
  • Agricultural/Forestry Machinery
  • Firewood Machinery
  • Miscellaneous
  • Timber Sales


  • Free Tip Sites
  • Pay to Tip Sites
  • Tip Sites That Pay


  • Member Blogs
  • Arboriculture
  • TD Tree and Land Services
  • David Humphries
  • Steve Bullman
  • HAIX Group
  • (Arboricultural-styled) 'Fact of the Day'
  • Tree Surgeon Insurance
  • Reasons Why Glazed Roofs Are Beneficial For Your Premises
  • Research
  • Can hair transplant be done to the places where hair never grew?
  • Barcham Trees
  • Important Safety Tools for Building Construction Employees
  • Roofing in building construction- A safety measure
  • Important types of fixings
  • Do you know about ADOPTION?


  • Climbing Gear
  • Rigging Gear
  • Arborists PPE
  • Chainsaws
  • Hand Saws
  • Arborist Machinery
  • Firewood Machinery
  • Literature
  • Miscellaneous
  • Work Clothing


  • Friction Hitches
  • Mid-line Knots
  • Joining Knots
  • Termination Knots
  • Rigging Knots

Find results in...

Find results that contain...

Date Created

  • Start


Last Updated

  • Start


Filter by number of...


  • Start



About Me




Post code


Found 19 results

  1. Hi, we are having problems with our ornamental cherry tree. As the picture shows the leaves appear to have a dark spot on them that turns into a hole. Developing leaves also wither, discolour and fall prematurely. Any help would be much appreciated!
  2. Morning all, First post here and I hope someone can help. We have a small ~10-12ft tall Rowan Tree in our back garden, which started as a bare root dished out by the local council about 6 or 7 years ago. Last year it suffered somewhat with aphids I think, which were being tended to by a large number of ants. This caused the leaves in the affected areas to curl in on themselves. I trimmed away the affected branches and all seemed well. As the tree has blossomed this year it looks healthy up to about 5 or 6 feet, but then the main trunk (only a couple of inches thick) and all the branches above it appear to have died off, there were some buds, but they have never blossomed. There are also a couple of small wounds/breaks visible in the bark. I've read about fireblight and wondered if this is what we've got, or if it's something else? Any suggestions as to what it might be and how I might save this tree please?
  3. Hello I have a lovely walnut tree - just strated to produce nuts last year - now in full leaf but with significant bark damage. Does anybody have any ideas on cause or treatment ? All advice gratefully received Many thanks
  4. Hi there, Has anyone had experience killing Larch standing to deal with Phytophthora - or know of any research on doing this? What affect does it have on timber? How long will the timber last standing before rot sets in? Does it work First time? Will trees flush again in Spring? What is best product to use? Roundup BioActiv (Agricultural), or Tree&stump killer, or something else? My understanding is 3 cut marks, or drill holes 1.2m above ground & 2ml of Roundup in holes. Do this in October and the poison will be drawn down into root system with the retreating sap. Not a nice topic - but I've got a seriously crowded wood & think this might be a good way to achieve the PHN by spring. Thanks for the advice.
  5. Most of the Ilex trees in a small woods have these growths that i'm calling cankers. Are these cankers, if so please provide a research reference. Not sure what breed this is either. Thank you. Sam.
  6. A population of Aspen (Populus tremula) on one of our nature reserves has rapidly succumbed to disease this year and I am struggling to identify the cause. I submitted a report via tree alert earlier in the year, but I didn’t receive a response as I suppose the team are snowed under with reports of ash dieback and other economically important diseases. The Aspen have cankers on the small branches and twigs. Searching through the internet, the closest match I can find for the disease is Black Canker (Ceratocystis fimbriata). However, I cannot find any reports of the disease in the UK and I wonder if anyone could suggest a more likely cause? Thanks in advance for any help you can offer!
  7. Hello, I'm hoping an expert eye can tell what is wrong with my apple tree? I'm worried that it is the start of canker. It is a Spartan apple tree on M26 rootstock planted in November 2015 as a 2-year old bare root plant. On three of the branches, the bark appears to have split and looks papery. Is this the first sign of canker? There is also an area that looks more like pictures I've seen of canker, where the branch has a depression. Please can anyone identify the problem and suggest advice? I've already pruned out some of the affected branches. Hopefully, I'm just being paranoid and there's nothing wrong! It's been quite wet here (Northants), so is it possible the the bark has split due to rapid growth? Many thanks.
  8. Hi friendly people, I'm new to arboriculture, only having grown trees for a few years. This year I bought myself a couple of 2-year old apple trees and planted them. Both trees seem to be doing well but have developed what looks like different problems. I can't find out what they are so I thought I'd post photos and see if anyone could help me. The first tree has brown spots on quite a large number of leaves. The second tree has problems only at the ends of branches. The leaves curl up and turn odd - it doesn't happen to any of the other leaves which all look healthy. Any clues would be brilliant! thanks, Oli
  9. Phytophthora lateralis survey You don't need to be an AA member to get involved. If you have found any lawson cypress (not leylandii) that are looking a bit sick can you provide some details on this survey? There are links on the AA website for more information on the disease. If you have already removed the diseased trees you can still report them as we are attempting to find out where the disease is. Tell your friends - it will be open until the end of March 2015. Thanks!
  10. We have what I understand to be a Gold Crest in our North East facing garden. It is a mature tree, taller than the house. It is on the boundary of our garden and our neighbours removed all overhanging branches right up to but not including the crown. Since then the corresponding branches on our side of the fence have all fallen off. Is it possible that the tree is 'balancing' itself out due to the excessive pruning or is the loss of multiple branches more likely to be due to disease? There are no obvious signs of disease and foliage on fallen branches is green. I can upload photos another time if needed I am just keen for any thoughts sooner rather than later in case I should take urgent action. Many thanks for any advice!
  11. Thought that this might be of interest to other Arbtalkers in a number of forums including firewood, landscaping. Plant health risk register.... Plant Pests & Diseases The case study used in the workshops at the seminar used a 'theoretical' outbreak of Asian Longhorn Beetle in Croyden. How would an outbreak team tackle that (2km tree clearance zone in an urban environment) - challenging!!
  12. In metro Atlanta, and I can't figure out what fungus/disease is making the bark peel off. Here are some photos: My tree got disease, yo - Imgur
  13. Hi all, I'm wanting to improve my knowledge of tree diseases, particularly the different types of fungi/rot, as I would like to start thinking about doing a bit of surveying in the future. Can anybody recommend any good books on the subject? Thanks,
  14. Hi Guys, I am at collage studying arboriculture and have recently started doing about pest and disease and am wondering if anyone could recommend me an identification book to carry when working and seeing jobs for both fungi and pest and disease. I realise that a definitive book wont be out there as our understanding is constantly changing but is there an identification book out there worth getting for arb purposes? Cheers Conall
  15. Found this on a pear, could some one tell me what it is and is it curable and if so how! Cheers
  16. Now I don't usually read the Daily Mail, yeah that's right, someone else saw it, yeah that's right, that's how it happened, yeah.... Just saw this... The disease threatening UK's 80m ash trees after nursery imported infected saplings | Mail Online
  17. Hi There I've just received an e-mail from a good client in the South Yorkshire area. Her large sycamore (mature) has just come into leaf and only on a few branches. She is very concerned as she loves the tree. Has anyone else come across this. The tree has been pruned last year but only a few branches <15cm diameter. A few trees have been removed within the near vaccinity so would increased wind exposure cause this? But other sycamores close have NOT been affected by late / little leafing. Any help would be great. Does anyone know of this happening with sycamores in the area or nationally? Kind Regards Rich
  18. BBC News - Newsnight - The decline of the English elm tree Tree related so I thought I should post
  19. Hi, A few privet hedges round my area have some deformed leaves, they are curling up on themselves and looking a but chloritic and spotty, there are no bugs. any body any ideas? Cheers


Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.