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What is this pest on boxwoods?

Discussion in 'Landscape Architecture and Design' started by HLM86, Dec 14, 2011.

  1. HLM86

    HLM86 LawnSite Member
    Posts: 118

    Wintergreen Boxwoods. [​IMG] [​IMG]
     
  2. Dr.NewEarth

    Dr.NewEarth LawnSite Bronze Member
    Posts: 1,405

    Your pictures come up as empty boxes with a red XX
     
  3. HLM86

    HLM86 LawnSite Member
    Posts: 118

    Wintergreen boxwoods. Only one of six has declined to the point of the brown foliage in the attached picture.

    DSC00463.JPG

    DSC00467.JPG
     
  4. agrostis

    agrostis LawnSite Silver Member
    Posts: 2,250

    That look's like salt to me. See how it has traveled to the edge of the leaf. In Savannah salt intrusion into the fresh water is a possibility. It take's a lot to kill a boxwood, salt would do it.
     
  5. RussellB

    RussellB LawnSite Fanatic
    Posts: 5,998

    Looks like powdery mildew to me. easy to treat.
    Posted via Mobile Device
     
  6. Dr.NewEarth

    Dr.NewEarth LawnSite Bronze Member
    Posts: 1,405

    I've had Buxus sp. look that way up here. There have been a few reasons...weavils, broken branch, weed eater damage to the cambium, too much water...

    Trim the dead branches off down low,and monitor it.

    Is the hedge next to the driveway? A hot exhaust pipe can do damage that looks like that too.
     
  7. AGLA

    AGLA LawnSite Bronze Member
    Posts: 1,740

    I would not rule out a dog.
     
  8. HLM86

    HLM86 LawnSite Member
    Posts: 118

    I have 5 plants still in nursery containers. I put 12 in the ground in October. They all look the same with the red in the leaves and the white on them. They are slowly declining. I was thinking some kind of blight or powdery mildew, but I'm still learning pest ID. I had a Euonymous with the same white stuff on the foliage, and I blasted it with a water hose and its still there but the plant looks completely healthy otherwise. Thanks for the responses.
     
  9. Dr.NewEarth

    Dr.NewEarth LawnSite Bronze Member
    Posts: 1,405

    It looks similar to a magnesium deficiency.
     
  10. agrostis

    agrostis LawnSite Silver Member
    Posts: 2,250

    For a definitive answer send a sample to the plant pathologist at UGA. For a in-state resident it should only be 5-10 dollars.
     

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