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 myrtles). In Florida ... READ MORE
Category: Home Landscapes, Pests & Disease
GAINESVILLE, Fla. --- Michael Dukes, director of the Center for Landscape Conservation and Ecology at the University of Florida Institute of Food and Agricultural Sciences, has been named a Fellow by a prestigious national organization. The ... READ MORE
Category: Agriculture, Florida-Friendly Landscaping, Home Landscapes, Lawn, Natural Resources, Pests & Disease, UF/IFAS, UF/IFAS Extension, UF/IFAS Research
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 initially as I could not locate ... READ MORE
Category: Home Landscapes, 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 indicates the possibility of bacterial blight. Generally bacteria will stay ... READ MORE
Category: Home Landscapes, Pests & Disease
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? A: It helped to have a clipping ... READ MORE
Category: Home Landscapes, Pests & Disease
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 shrubs are not planted too deeply. ... READ MORE
Category: Home Landscapes, Pests & Disease
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 hydrangea looks so unhealthy. We ... READ MORE
Category: Home Landscapes, Pests & Disease
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 or grey. Small spores will be in the center ... READ MORE
Category: Home Landscapes, Pests & Disease
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 what they are. Can you help me? A: I am glad you brought in ... READ MORE
Category: Home Landscapes, Pests & Disease
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 petals to turn brown. It is ... READ MORE
Category: Home Landscapes, Pests & Disease