Here is a summary of the article:
Introduction
The article discusses the common issue of crepe myrtle leaves turning brown, which can be caused by various factors such as drought, over-watering, diseases, and environmental conditions. The article aims to provide a comprehensive guide on why crepe myrtle leaves turn brown and how to fix the problem.
If you are wondering why your crepe myrtle shrubs or trees have developed brown leaves, the first thing to look at is the calendar.
Late summer usually brings about browning leaves due to the heat, but other reasons could include too much fertilizer, watering issues, or diseases.
Crepe myrtle leaves will wilt and brown due to over-watering or other watering issues. Trees that are stressed by drought will inhibit the leaves from staying green, while overwatering the tree crowds out all the oxygen in the soil.
Read on for more reasons your crepe myrtle is turning brown, plus how to fix it.
Brown Leaves vs. Brown Spots
Crepe myrtle leaves turning brown—with the whole leaf turning brown or browning along the edges and sometimes accompanied by curling or not blooming—is different from the emergence of brown spots in the middle of the leaf.
Such spots can indicate a Cercospora leaf spot disease, which is caused by a type of fungus and is an entirely different problem. Cercospora leaf spot is a bigger problem in areas with high humidity than it is in other areas.
In the case of brown spotting, give your bushes plenty of space (to promote good air circulation) when you plant them, and prune off (and properly dispose of) affected branches (to prevent transmission of the fungus) to ward off Cercospora leaf spot.
Why Crepe Myrtle Leaves Turn Brown
In Summer
If you are seeing brown leaves (or even partially brown leaves) on a crepe myrtle shrub at the end of a parched summer, the problem could be due to drought.
These bushes flourish in the southeastern United States, where they are very popular due to their ability to withstand the summer heat.
Nonetheless, they do need water, and they may parched up during especially warm summers with little rainfall. If you suspect that drought is the problem, water the plants enough to keep the soil evenly humid but not moist.
In Spring
If you are seeing brown leaves on your crepe myrtle plant in the spring, it could be due to your area experiencing a icy snap.
Crepe myrtle is not as tolerant of icy weather as many bushes are. An untimely drop in temperature after the tender leaves have made their appearance can spell death for them.
Short of growing your bush in a sheltered area (which requires foresight), there is not much that you can do to prevent the problem of browning in this case.
Your Crepe Myrtle Shrub Is Not Necessarily Going to Die
Here is the good news: Neither case of brown leaves (either in summer or in spring) need be fatal to your crepe myrtle. Browning due to a moderate icy snap ruins the appearance of the plant, but it probably will not kill your shrub.
While this bush is more likely to die from drought, it is usually uncomplicated enough to remedy the situation.
- Lean on artificial irrigation once you detect the first hint of browning.
- Vigilance is of the utmost importance—keep tabs on your plants and inspect them on a daily basis.
- If your crepe myrtle shrubs do not seem to be performing as they usually do, start asking questions. Many plant problems can be solved fairly easily if you learn about them soon enough and take appropriate action in a timely fashion.
Some Crepe Myrtles More Resistant to Leaf Spot Than Others
Not all crepe myrtle shrubs are alike. Some have been bred to have better resistance than others to diseases such as Cercospora leaf spot. Dr. Allan Armitage has provided a useful list both of types resistant to Cercospora leaf spot and types susceptible to it.
If you live in a region where summers are not especially soggy, you may be able to get away with growing one of the susceptible kinds, which include:
- Dynamite: Red flowers; 20 feet elevated
- Pink Velour: Deep pink flowers; 10 to 12 feet elevated
- Cheyenne: Red flowers; 8 to 10 feet elevated
If you live in a region with very soggy summers, stick to a resistant variety such as:
- Apalachee: Lavender flowers; 15 feet elevated
- Red Rocket: Red flowers; 10 to 15 feet elevated
Here are 4 FAQs based on the provided text:
Q: Why do crepe myrtle leaves turn brown?
A: Crepe myrtle leaves can turn brown due to various reasons such as drought, excessive watering, diseases, or icy snaps. In summer, drought can cause brown leaves, while in spring, a icy snap can also cause browning.
Q: How can I prevent my crepe myrtle from dying due to brown leaves?
A: If you detect the first hint of browning, lean on artificial irrigation and monitor your plants daily. If your crepe myrtle shrubs are not performing well, inspect them regularly and take action promptly to solve any problems that arise.
Q: Are all crepe myrtles susceptible to leaf spot diseases?
A: No, not all crepe myrtles are alike. Some varieties have been bred to have better resistance to diseases such as Cercospora leaf spot. If you live in a soggy region, it’s recommended to grow a resistant variety.
Q: Can I still save my crepe myrtle if it’s already showing signs of brown leaves?
A: Yes, even if your crepe myrtle is showing signs of brown leaves, it’s not necessarily going to die. You can still save it by taking action promptly to address the underlying cause of the browning.
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