What's your question? Ask

Top Questions About Willow Trees

Click on links below to jump to that question.

Questions About Willow Trees

  • Answered by
    drtreelove on
    August 18, 2018
    A.

    It's probably aphids, a sucking insect pest that feeds on the sap and excretes a sticky "honeydew". Black "sooty mold" grows on the honeydew covered surfaces. The sooty mold is not harmful but the aphids can weaken the tree and cause branch die-back.

    I suspect that the "bees" are not honey bees this time of year because a willow will not be in flower to attract pollinators. It is likely to be wasps/hornets feeding on the honeydew and maybe on the insect pest.

    Without a photo or description of the size of the tree and growing conditions, it's hard to go any further with giving advise on control. A systemic insecticide would be best, to avoid having to spray a large tree with a contact insecticide.

    The fastest acting and most effective systemic insecticides are available to professional applicators, like a tree service with a plant health care operation, or a landscape pest control company.

    Was this answer useful?
    00
    Add Answer
Join Us - Sign up to get all the latest gardening tips!
  • Answered by
    Downtoearthdigs on
    October 17, 2018
    A.

    The tricolor dappled willow, or Salix integra ‘Hakuro Nishiki,’ is also called the Japanese variegated willow.

    Prune the tricolor dappled willow in early spring or late fall to maintain the most colorful leaves. Prune in midsummer if you want to keep it smaller than its natural height of up to 20 feet.

    Shear the tricolor dappled willow sparingly to promote new growth. Prune small stems at evenly distributed locations throughout the plant about 1/8- to 3/8-inch above a leaf bud with a cut that slants away from the bud. Multiple stems will sprout at these cuts, so keep in mind the overall shape of the willow when selecting stems to prune.
    Never prune more than a third of an entire tree or shrub at any given time or it may die.

    Was this answer useful?
    00
    Add Answer
  • Answered by
    Downtoearthdigs on
    December 30, 2018
    A.

    This can be hard to diagnose if you do not physically see the pests. To know what it is causing the damage would help, as there could be a different treatment based on what the pest is. If you can upload some pictures here, then it will really help me to identify the cause of the problem.

    Was this answer useful?
    00
    Add Answer
  • Answered by
    Downtoearthdigs on
    April 20, 2019
    A.

    A weeping willow is relatively short-lived compared to some trees. The maximum average lifespan is 50 years, and they may began declining as they age.
    Depending on the age of your tree; you may be seeing just normal signs that the tree is coming to the end of its life expectancy.

    https://www.gardeningknowhow.com/ornamental/trees/willow/planting-weeping-willow-trees.htm

    Was this answer useful?
    00
    Add Answer
  • Answered by
    Downtoearthdigs on
    April 28, 2019
    A.

    It sounds like your plant may have died off and that the root stock took over.

    Inspect the trunk and see if the new growth is coming from below the graft line.

    If you still have growth from above the graft line you can try removing all the root stock growth.

    https://www.gardeningknowhow.com/ornamental/trees/willow/dappled-japanese-willow.htm

    Was this answer useful?
    00
    Add Answer
  • Answered by
    Downtoearthdigs on
    May 27, 2019
    A.

    This could be a fungal infections. You can treat with fungicides.

    https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
    https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
    https://www.gardeningknowhow.com/garden-how-to/info/diy-bordeaux-fungicide.htm

    Was this answer useful?
    00
    Add Answer
  • Answered by
    Downtoearthdigs on
    May 29, 2019
    A.

    It could be a number of things...disease, pests, watering issues, nutrient needs.

    Check soil; is it dry or is there excess water?
    If you have mulch at the base, pull it back so that it does not touch the trunk of the shrub.
    Inspect the bark and leaves for signs of bugs eating it. If there is a sticky substance; this is Honeydew and the residue from pests.

    Review the care in the article below.

    https://www.gardeningknowhow.com/ornamental/trees/willow/dappled-japanese-willow.htm

    Was this answer useful?
    00
    Add Answer
1 … 9 10 11 12 13 … 18

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More

OK
X
Join Us - Sign up to get all the latest gardening tips!