Tree health care

2,960 topics in this forum

1. opinions sought 1 2

   By Swampster, June 22, 2013
   • 11 replies
   • 1.8k views
   • 
   • Swampster
   • June 23, 2013

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3. Opinions/options? 1 2 3

   By benedmonds, July 31, 2014
   • 23 replies
   • 3.3k views
   • 
   • treeseer
   • August 8, 2014

4. OPM advaning in my Borough 1 2

   By janey, June 27, 2009
   • 11 replies
   • 1.8k views
   • 
   • David Humphries
   • June 27, 2009

5. OPM article from Hort Week online

   By janey, April 15, 2011
   • 6 replies
   • 1.4k views
   • 
   • janey
   • April 16, 2011

6. OPM Course 1 2

   By treevolution, April 2, 2019
   • 13 replies
   • 2.4k views
   • 
   • Mr. Squirrel
   • April 6, 2019

7. OPM DeFra & Forestry Commission Euston Forum and Years review

   By Khriss, October 23, 2017   

   • oak processionary moth
   • 2 replies
   • 735 views
   • 
   • Khriss
   • October 24, 2017

8. OPM in London - Moving oak arisings - Quick 10 minute survey!

   By Biosecurity4Trees, February 11, 2015   

   • opm
   • oak processionary moth
   • (and 3 more)

     Tagged with:

     • opm
     • oak processionary moth
     • notifiable pests
     • london
     • arisings
   • 0 replies
   • 1k views
   • 
   • Biosecurity4Trees
   • February 11, 2015

9. OPM Pheromone Traps 1 2

   By David Humphries, February 17, 2008
   • 18 replies
   • 6.2k views
   • 
   • David Humphries
   • June 24, 2015

10. Opm?

    By armchairarborist, December 14, 2010
    • 9 replies
    • 1.4k views
    • 
    • janey
    • December 16, 2010

11. orange spots on birch

    By scottythepinetree, March 2, 2010
    • 3 replies
    • 1.6k views
    • 
    • scottythepinetree
    • March 2, 2010

12. Organic or Synthetic PHC

    By Lee Winger, April 8, 2008
    • 8 replies
    • 1.9k views
    • 
    • Lee Winger
    • April 13, 2008

13. Oriental chestnut gall wasp confirmed in UK 1 2

    By Lucan, June 19, 2015
    • 10 replies
    • 2.6k views
    • 
    • Alycidon
    • June 20, 2015

14. Oriental Gall Wasp

    By The avantgardener, July 2, 2020
    • 4 replies
    • 1.1k views
    • 
    • The avantgardener
    • August 4, 2020

15. Oriental Sweet Chestnut Gall Wasp

    By Gollum, June 25, 2015
    • 2 replies
    • 1k views
    • 
    • john k
    • June 25, 2015

16. Ornamental Plum Fungi?

    By spudulike, May 17, 2019
    • 4 replies
    • 779 views
    • 
    • spudulike
    • May 17, 2019

17. Oudemansiella mucida-significance?

    By SDDavid, October 1, 2015
    • 9 replies
    • 1.6k views
    • 
    • SDDavid
    • October 8, 2015

18. Overexposed beech with extreme sun scald

    By Fungus, August 5, 2011
    • 8 replies
    • 3.4k views
    • 
    • Fungus
    • August 8, 2011

19. Oyster Fungus?

    By Rock Monkey, June 27, 2020
    • 1 reply
    • 1.1k views
    • 
    • Paul in the woods
    • June 27, 2020

20. P Ramorum in our local wood

    By agrimog, June 19, 2014
    • 0 replies
    • 771 views
    • 
    • agrimog
    • June 19, 2014

21. P. Ramorum or Pseudomonas Syringae?

    By Marula, March 31, 2017
    • 2 replies
    • 972 views
    • 
    • Marula
    • March 31, 2017

22. P.sylvestris woolly aphid??

    By Nick Harrison, October 8, 2009
    • 0 replies
    • 716 views
    • 
    • Nick Harrison
    • October 8, 2009

23. Pain in the Ash

    By Paddy1000111, September 23, 2020
    • 4 replies
    • 877 views
    • 
    • Paddy1000111
    • September 24, 2020

24. palms 1 2 3

    By ad15, September 14, 2010
    • 20 replies
    • 3k views
    • 
    • ad15
    • September 17, 2010

25. parakeets pruning! 1 2 3 4

    By stevelucocq, June 28, 2010
    • 37 replies
    • 7.8k views
    • 
    • peatff
    • July 30, 2016

26. Parastitic, Saprophytic and Mycorrhyzal- whats the difference?

    By Frankie Lawrence, August 11, 2010
    • 5 replies
    • 1.1k views
    • 
    • Tony Croft aka hamadryad
    • August 14, 2010