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Dogwood Diseases
| Disease | Pathogen/Cause |
|---|---|
| Anthracnose and Decline | Discula destructiva |
| Leaf and flower blight | Botrytis cinerea |
| Crown canker | Phytophthora cactorum |
| Powdery mildew | Erysiphe pulchra and Phyllactinia guttata |
- What insects attack dogwood trees?
- How do you treat a diseased dogwood tree?
- What's wrong with my dogwood tree?
- What could be killing my dogwood tree?
- Are coffee grounds good for dogwood trees?
- How do you keep a dogwood healthy?
- What causes dogwood tree leaves to curl?
- How do I know if my dogwood tree is dying?
- How long do dogwood trees last?
- Can you overwater dogwood trees?
- How do you rejuvenate a dogwood tree?
What insects attack dogwood trees?
Pests of Dogwood
- Dogwood borer – The bark is injured, with fine boring dust on the trunk and branches in late summer.
- Dogwood clubgall midge – Club- or spindle-shaped galls appear near the growing tips of dogwood twigs. ...
- Dogwood twig borer – Leaves wilt on individual twigs; girdled tips drop.
How do you treat a diseased dogwood tree?
Fungicide sprays to protect the new leaves and shoots need to begin at bud break in early spring. Fungicides for spot anthracnose will also help to control dogwood anthracnose. These include chlorothalonil, mancozeb, propiconazole, thiophanate-methyl, or copper fungicides (see Table 1 for specific products).
What's wrong with my dogwood tree?
Spot anthracnose, septoria leaf spot, and powdery mildew are all conditions that affect the leaves. Root rots and canker disease abound and thrive in moist conditions. There are listed fungicides and bacterial agents to combat the various disease issues affecting dogwood trees.
What could be killing my dogwood tree?
Cause: Spot anthracnose is a fungal disease that targets dogwoods. It spreads via water splashing the spores from leaf to leaf. It's more of a problem for understory trees than trees growing out in the open. Solution: Remove and diseased branches and leaves and throw them out with the trash.
Are coffee grounds good for dogwood trees?
The answer is yes! Coffee grounds make an excellent ground mulch, especially for acid-loving plants.
How do you keep a dogwood healthy?
Always plant dogwoods in well-drained soil, even planting on a raised ridge of soil if possible. Wrap trunks with jute or foil to thwart the dogwood borer from early May to early July. Avoid mechanical injury from rotary mowers or weed trimmers.
What causes dogwood tree leaves to curl?
Leaf curl on dogwoods is essentially a protective reaction to stress the tree feels. Rather than keep its leaves flat and susceptible to burning in the summer sun, dogwoods curl their leaves to minimize leaf surface area and thus minimize any damage they might receive.
How do I know if my dogwood tree is dying?
Examine the bark at the base of the tree and at the base of the larger branches. Peeling bark is a sign of disease and death. If the bark has peeled away -- or flakes away with no effort -- around the girth of the branch, then that branch is dead.
How long do dogwood trees last?
A: In perfect growing circumstances, a dogwood tree can last several decades. But in spots where the roots get hot or dry in summer and where grass competes for moisture and nutrients, dogwoods typically have a 20- to 30-year life span.
Can you overwater dogwood trees?
Virginia Tech tree authority, Bonnie Appleton at the Hampton Roads Research Center, said, "Overwatering could cause problems with dogwoods. They don't like wet feet, and that could predispose the trees to other things, like anthracnose.
How do you rejuvenate a dogwood tree?
If trimming the dogwood tree for rejuvenation and regrowth, you will take your shears to remove the flower buds and make cuts to certain branches of the tree. Removing a flower bud will redirect energy that would otherwise be going to the bud.
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