How do you treat crepe myrtle blight?

Treating crepe myrtle blight can be done through several methods, and I will provide you with some options to consider. One effective DIY approach is to use a systemic insect drench, which can be easily found at stores like Lowes or online. Look for a product like Ferti-lome, which is specifically designed for treating insect infestations in plants.

To use the systemic insect drench, you will need to mix it with water as directed on the product label. Make sure to follow the instructions carefully to achieve the correct concentration. Once mixed, apply the solution in a band along the drip line of the affected tree. The drip line is the area directly beneath the outermost branches where rainwater would naturally fall off the tree. This is where the tree’s roots absorb water and nutrients, so applying the insect drench here will allow it to be taken up by the tree and distributed throughout its system.

Another option for treating crepe myrtle blight is to use a horticultural oil, specifically a “summer” horticultural oil. This can be a great alternative to chemical treatments and can be applied as a DIY summer project. Horticultural oils work by suffocating and smothering the insects and their eggs, effectively controlling the infestation.

To apply the horticultural oil, follow the instructions on the product label. Typically, you’ll need to mix the oil with water and then spray it onto the affected parts of the tree. Make sure to cover all areas, including the undersides of leaves and the crevices of the bark where insects may hide. It’s important to apply the oil during the appropriate time, usually in summer when the insects are active.

It’s worth noting that prevention is key when it comes to crepe myrtle blight. Regularly inspect your trees for signs of infestation, such as discolored leaves, sticky substances on the bark, or the presence of insects. If you notice any issues, take immediate action to treat the problem before it spreads. Additionally, maintaining good overall tree health through proper watering, fertilizing, and pruning can help prevent infestations and make your trees more resistant to diseases.

Treating crepe myrtle blight can be done through the use of a systemic insect drench or a summer horticultural oil. Both methods are DIY-friendly and can effectively control insect infestations. Remember to carefully follow the instructions on the product labels and regularly monitor your trees for signs of blight. By taking proactive measures, you can keep your crepe myrtles healthy and beautiful.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.