Q: Can you give me the names of crape myrtles which are not susceptible to powdery mildew? I am ready to get rid of the tree I now have and replace it because it never looks healthy. A: … Read More
Category: Pests & Disease
A: After looking at your photos and examining the samples of your leaves, I believe the spots are caused by a fungus called Cercospora lythracearum as it is the most common fungal leaf spot on Lagerstroemia indica (crape… Read More
A: After looking at the leaf under the scope it was evident that your tree has Entomosporium leaf spot, which is a common problem in all members of the rose family including Bradford pear. Spots may enlarge and… Read More
Q: Last year I transplanted a Tacoma Stans to a spot where it would get a little more sun and growing room. It rewarded the move by almost doubling in breadth, adding 30-40% in height. About one week… Read More
A: Thanks for bringing in clippings from your plant. I was not sure about this so I sent photo samples off to the University of Florida Pathology Department in Gainesville. I was not able to discern the problem… Read More
A I am glad you brought a clipping of the leaves to one of the plant clinics we conduct twice a month. The spots in my photo have a watery edge around the spot which indicates the possibility… Read More
Q: I have a large hedge of red tips and some of them are dying. Can you give me some idea of what might be causing this? A:It is often difficult to determine the cause of declining woody… Read More
Q: Why is my plumbago shrub not doing well? I have seen the one in the UF/IFAS Nassau County Demonstration Garden and the ones at your Yulee satellite office. They all look beautiful. What am I doing wrong?… Read More
Q: I have a group of loropetalum shrubs which are not doing very well. What could be wrong with them?
A: Several people have called in telling me they are experiencing problems with this shrub. While some of the species seem to be doing quite well, others appear to be dying limb by limb. First, be sure the… Read More
Q: This year, we noticed that one of the hydrangeas was not fully blooming, and then my hubby noticed mites/aphids underneath the leaves. Any suggestions?
Q: This year, we noticed that one of the hydrangeas was not fully blooming, and then my hubby noticed mites/aphids underneath the leaves. Some of the leaves at the very ends look almost burnt or fried and the… Read More