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Swisstone Pine disease

Discussion in 'Fertilizers, Pesticides and Diseases' started by DA Quality Lawn & YS, Jun 20, 2020.

  1. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 10,793

    Anyone know what might be hitting this Swisstone pine? I dont see mites, etc. Tree is roughly 40 years old.

    IMG_20200620_135148157.jpg

    IMG_20200620_135210740.jpg
     
  2. Trees Too

    Trees Too LawnSite Fanatic
    Messages: 6,494

    Pretty serious case of limb die-back!
    Suggest you closely inspect the trunk for cankers and/or borer holes.
     
  3. OP
    OP
    DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 10,793

    I did look at the trunk closely. I could not find anything resembling cankers, or matching those on a few forestry websites I looked at. I did see a fair number of circular holes on the trunk. I tried to peel away the bark to check for tunneling, but its almost impossible with that chunky, flaky bark. Maybe the holes just woodpeckers?
     
  4. Trees Too

    Trees Too LawnSite Fanatic
    Messages: 6,494

    Or sapsuckers...

    @hort101 @Wye Oak Tree Any thoughts/insight on this pic?
     
    hort101 likes this.
  5. starry night

    starry night LawnSite Platinum Member
    Messages: 4,321

    @Trees Too Haha. When I first looked at the pics, I wondered to myself ""why would those branches be "drying out?" " I didn't think of sapsuckers.
    But I imagine that makes sense.
     
  6. hort101

    hort101 LawnSite Fanatic
    Male, from S.E. New England
    Messages: 21,429

    Id look for sooty mold as possible indication of micro insects mites cant always be seen with naked eye a paper test helps with some

    Are the needles speckled

    Is all growth affected or just certain limbs?

    Look for pitch maybe gum or the cankers like you said

    Whats the weather been like?

    might help towards fungus or drought stress
     
  7. BrandonV

    BrandonV LawnSite Fanatic
    Messages: 5,322

    I’m it super familiar with these pines but how the weather been? A bunch of ours are dieing due to the crazy wet weather we’ve been having... especially white pines.
     
    hort101 likes this.
  8. BrandonV

    BrandonV LawnSite Fanatic
    Messages: 5,322

    I’m “not”... typo correction kicking my butt lately.
     
  9. OP
    OP
    DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 10,793

    That tree is at my folks home in northern Iowa. I'd say the last few years have trended toward the wet side. But as old as that tree is, I'd say its hard pressed to be simply wet soil.
     

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