Safe horticultural oils for maples

Discussion in 'Maples' started by sgbotsford, Jan 22, 2019.

  1. sgbotsford

    sgbotsford Active Member

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    Location:
    Rural Edmonton Alberta area, Canada
    I see notes for dormant oil generally "do not use on sensitive plants" and maple is listed as one of the sensitive plants.

    I have maple leaf galls on my maples and a similar gall on my lindens. Treatment says, "spray with dormant oil"

    I've read eslewhere of people using dormant oils on maples, but can't find it now. What brands/types of horticultural oil are useful agains leaf galls and are safe for maple trees?
     
  2. emery

    emery Contributor Maple Society 10 Years

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    Location:
    Normandie, France
    I'd also like to know the answer for oils: I haven't ever dared, but clearly I'm going to have a big aphid problem next spring.

    I've been told sulfur will get rid of mite galls. I was able to get rid of them by cutting off effected leaves and being careful with hygiene (for a year), but it was on a small tree.

    -E
     
  3. AlainK

    AlainK Well-Known Member Forums Moderator Maple Society 10 Years

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    Location:
    nr Orléans, France (E.U.)
    Neem oil is very popular in the world of bonsaI, but almost impossible to find as a pesticide in France.
     

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