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… Read More
Category: Pests & Disease
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… 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… 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… 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,… 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… Read More
A: Your plant is showing signs of Cercospora leaf spot which is a disease caused by the fungus Cercospora hydrangeae. The spots will start out as small circular purple dots which later will turn tan… Read More
Q: Some of my camellias are not looking their best. The leaves of a few of them are brownish-gray. Can you help me?
Q: Some of my camellias are not looking their best. The leaves of a few of them are brownish-gray. They seem to have specks of something all over them but I can not tell exactly… Read More
Q: My camellia flowers normally stay on the tree for a long period of time but a few of the flowers turn brown and drop off quickly. What is wrong?
A: There are environmental reasons for browning of camellia flower petals such as cold temperatures, too much sun or severe wind exposure. However, there is a serious disease of camellias which can cause the flower… Read More
A: The leaves on the camellia have wilted but I suspect the culprit is a root rot. Your camellia probably does not have the same disease causing agent, Phytophthora ramorum, as sudden oak death (SOD). … Read More