Question
QUESTION: The landscaper planted the crape myrtle tree in the early spring.  The leaves are turning brown.  We have not had any flowers.  What can we do to save this tree?

ANSWER: Dear Karen, I suspect your crape myrtle is having problems because it is either too wet or too dry, and I suspect it is too dry.  The weather this year has been very bad, and people in this country are either under water or in the midst of a record drought.  Extremely saturated soil can cause plants to do poorly, but since your crape has just been planted this spring, I would suspect that it isn't getting enough water.  You will need to water the tree thoroughly for at least twenty minutes three times a week in order to help the roots get established.  Once the tree is thoroughly established, then you may not need to water it except in extremely dry weather as they are very drought tolerant.  If you live in the rainy part of the country, then you may just have to dig draining trenches and dry the tree out any way you can and hope for the best.  I suspect one of these conditions applies to your tree, so just add more water and it should start to improve.  Good luck, and let me know if you need further assistance.  Melissa

---------- FOLLOW-UP ----------

QUESTION: Thank you Melissa.  I believe we have another issue with the tree.  The leaves are turning yellow and red.  They have rust color spots on both sides of the leaves.  It was planted in early spring this year.  We need help.  Appreciate your expert advise.

Karen

Answer
Dear Karen, Your crape myrtle has a fungal disease known as Cercospora leaf spot and it is one of the most common diseases for crape myrtle and also attacks other plants as well.  You will need to spray with a fungicide for this one.  A good one is Daconil; other recommendations are Eagle and Banner.  If you want to go organic you can use NEEM.  Spray the tree thoroughly every week until the disease is gone.  You could also use the spray and also a systemic fungicide for extra protection.  In addition, be sure to water early in the day to allow the plant to dry and pick up any fallen leaves to avoid spreading the disease further.  It won't harm the crape too much, but it is unsightly and therefore it's best to go ahead and spray for this.  Good luck and keep me posted.  Melissa