Spray the infected crepe myrtle trees with copper fungicide or lime sulfur fungicide. Start spraying when the leaf tip symptoms first show up, then repeat every 10 days during wet weather.
- How do you treat crepe myrtle fungus?
- How do I bring my crepe myrtle back to life?
- How do you treat black bark on crepe myrtles?
- What fertilizer do you use for crepe myrtles?
- What happens if you don't prune crepe myrtles?
- What causes fungus on crape myrtles?
- How do you know when a crepe myrtle is dying?
- What is the black stuff on my crepe myrtle?
- How do you force a crepe myrtle to bloom?
- Are you supposed to cut back crepe myrtles?
- Will Scale kill crape myrtles?
- How do I get rid of sooty mold?
- Is Miracle Grow good for crape myrtles?
- How often should I water my crepe myrtle?
- When is the best time to fertilize hydrangeas?
- What month do you prune crepe myrtle trees?
- How late can you prune crepe myrtles?
- Can I cut my crepe myrtle to the ground?
- Does vinegar kill powdery mildew?
- Does baking soda kill powdery mildew?
- How do I get rid of spider mites on my crepe myrtle?
How do you treat crepe myrtle fungus?
Spray your crepe myrtle according to label directions with insecticidal soap, horticultural oil, neem oil, or Natria Multi-Insect Control. All of these are safe, natural products available at home and garden centers. Without the insects and their honeydew, sooty mold will gradually wash away.
How do I bring my crepe myrtle back to life?
Cut off the dead top and let the shoots grow. They'll grow faster than a congressman's nose. Select 4-5 well-spaced ones to become the new main trunks and cut off the rest. Your crepe myrtle will grow back free-of-charge and may even bloom this summer.
How do you treat black bark on crepe myrtles?
How do I treat for crape myrtle bark scale? Systemic insecticides work very well to control the bark scale, but the timing is most effective when applied in late winter/early spring. If you are just now spotting the problem, you can clean off the trunk with warm, soapy water to remove the black sooty mold.
What fertilizer do you use for crepe myrtles?
To maximize spring growth and summer bloom, gardeners should fertilize their crape myrtles in early spring just prior to new growth. Fertilizers like 8-8-8, 10-10-10, 12-4-8 or 16-4-8 will work fine and are ideal for crape myrtles but you shouldn't go over board.
What happens if you don't prune crepe myrtles?
Flowers are not the only virtue of this tree. Many varieties have beautiful bark and growth habits that can be enjoyed all year if trees are not heavily pruned. This unsightly, ugly pruning known as crape murder is not recommended. Once it's done, it ruins the tree's graceful natural shape for the rest of its life.
What causes fungus on crape myrtles?
Powdery mildew typically coats the flower buds (above) and foliage of crape myrtle. Powdery Mildew: Powdery mildew is one of the most common problems of crape myrtle, and it is caused by the fungus Erysiphe lagerstroemiae. Heavily infected flowers may fail to open. ...
How do you know when a crepe myrtle is dying?
Using Scratch Test to determine a Dead Crape Myrtle
Scratch the lower base of the stem and if it's green it is still alive. If it's not, it may still be alive, but you'll have to wait awhile before you know for sure. A really cold winter may have of killed the top growth, but the roots may still be alive.
What is the black stuff on my crepe myrtle?
Sooty mold is the black, crusty material that encompasses the leaves during the growing season. ... Sucking insects, such as aphids and scales, are attracted to crape myrtles and will suck the leaves for plant juices. As they digest the plant nutrients, they excrete a very sugary substance that we call honeydew.
How do you force a crepe myrtle to bloom?
Crape myrtles need to have new growth each spring in order to produce summer flowers. These flowers come on current-season growth, so late winter/early spring fertilization can aid crape myrtle flowering in the summer. It is not too late to fertilize this year if you haven't yet. – Shade.
Are you supposed to cut back crepe myrtles?
If you do choose to prune your crepe myrtles, pruning should take place in mid-February to avoid winter injury. Pruning should be done only to shape the tree; not to severely control plant height. ... The seed heads from last year can remain on the plant all year, and you will still get good blooming in the current year.
Will Scale kill crape myrtles?
Crapemyrtles suffer aesthetic damage because of the CMBS infestations. These bark scales may not kill the plants, but there may likely be a reduction in plant vigor, number of flowers, and flower cluster size. ... With a scale heavy infestation, there may be premature bark peeling.
How do I get rid of sooty mold?
Spraying the leaves with insecticidal soap can help soften the sooty coating. Spray late in the day so the soap remains moist for as long as possible. If you can spray a few hours before a heavy rain is forecast the rain will be better able to remove the sooty mold.
Is Miracle Grow good for crape myrtles?
The easiest to use and most well known fertilizer is Miracle Gro. However, if you have many Crape Myrtles you wish to fertilize, using Miracle Gro can become expensive. ... When choosing a fertilizer for your Crape Myrtles, keep in mind that they are heavy feeders and are more prosperous when fed often.
How often should I water my crepe myrtle?
To prevent the plant from dying, it must be watered once a week. Be sure to soak the entire root system deeply, this will take about 45-60 minutes. For best growth and production, crape myrtle should receive at least one inch of water a week. During dry spells, water is mandatory.
When is the best time to fertilize hydrangeas?
With most hydrangea shrubs, you should aim to fertilize in spring. Time this dose of hydrangea fertilizer for early in the season, when plants are leafing out. An easy way to give plants an early season boost is to add a shovel or two of compost around the base of plants.
What month do you prune crepe myrtle trees?
When is the best time to trim or cut back crepe myrtles? Early spring before new growth is the best time to prune crape myrtles. Whenever you prune, you cause the tree to generate new growth. New growth that starts now will not have time to harden off before frost.
How late can you prune crepe myrtles?
Crape myrtles should be pruned during the winter. Many people prune in late winter, from late February into early March. The important thing to remember is to prune crape myrtles right before new growth begins in the spring. A crape myrtle's flower buds are produced on new growth.
Can I cut my crepe myrtle to the ground?
One would be to do as you ask, and start over by cutting the plant to the ground. This will take time to restructure the tree. If you do this, choose three to five sprouts that appear, and prune out everything else. ... Pruning of crape myrtles should be done in late February to early March.
Does vinegar kill powdery mildew?
Potassium bicarbonate is a contact fungicide which kills the powdery mildew spores quickly. ... Vinegar – Similar to mouthwash, the acetic acid of vinegar can control powdery mildew. A mixture of 2-3 tablespoons of common apple cider vinegar, containing 5% acetic acid mixed with a gallon of water does job.
Does baking soda kill powdery mildew?
Baking soda itself isn't normally effective as a powdery mildew treatment, but when it's combined with liquid soap and water, it can be a powerful weapon. ... Combine one tablespoon baking soda and one-half teaspoon of liquid, non-detergent soap with one gallon of water, and spray the mixture liberally on the plants.
How do I get rid of spider mites on my crepe myrtle?
Sprays. Heavy spider mite populations damage myrtle foliage and spread to nearby plants. Insecticidal soap or horticultural oil, sprayed on the pests and over the plant, kills the pests on contact. They can be used through the growing season and are also effective on other crape myrtle pests such as thrips and aphids.