Q: Do river birch trees act like weeping willow trees regarding water pipes? I have a river birch approximately three years old over my water pipes coming into my house. Is this of great concern? A: All trees ac
Q: I need information on tomato bacterial wilt. Specifically, how to contain it, how contagious is it, what else it can affect, how I can keep from spreading it to the rest of my garden. A: Bacterial wilt is a s
Q: I recently got an e-mail about using dish detergent in a shallow plate to attract and drown mosquitoes. Is it horticultural pseudo-science or does it work? A: I would not use the word science anywhere near th
Q: I would like to put a ground cover in dry shade under an oak but my husband thinks all ground covers are invasive. Are there any evergreen groundcovers that would work? If they had a blooming period that would
Q: I bought fifty lespedeza plants and some tree seedlings as part of a "Wildlife Package" from the Georgia Forestry Service (1-800-GATREES). When I looked up lespedeza on the Internet I found that it
Tree Roots – When do They Grow
Q: During mild Atlanta winters are the roots of my young oak trees active during dormancy or does the entire tree shut down? Put another way, would a dry winter or a wet winter make any difference in a tree’
Tomato – Planting in Same Spot
Q: I've always heard that you shouldn't plant tomatoes in the same spot two years in a row. I had a great, sunny spot for tomatoes last year and they were plentiful. I'm limited in space and
Q: I've been pondering your recent reply to the person who planted the one hundred year old plum variety. You mentioned that he wouldn't wear clothes that were a century old, so why plant a plum varie
Q: I attend middle school. I have come to ask u a question about my science fair project. the question is: what are the five basic things a plant needs to grow, no matter what kind of plant it is. I hope u will b
Mockorange sawfly – Identification
Q: Can you tell me what type of worm this is and why does it attack my mockorange bush? A: It's a "worm" – but it's not a caterpillar. I counted his fleshy back legs (prolegs) and c
Black-eyed Susan Vine – Identification
Q: I was in Boston last week and saw this yellow-flowered, vine-like container plant which I can't identify. Can this be grown here? A: I believe it's a climbing black-eyed Susan vine, Thunbergia al
Q: I have four Leyland cypress trees that are six feet tall. They all have little pods, containing some sort of worm, hanging from almost every branch. One of the trees died and the others aren't looking t
Hummingbird Feeder – Bee and Wasp Control
Q: How can I keep honeybees from my hummingbird feeders? They are driving the hummers away. A: You have to modify the feeder opening so that the insect tongues are too short to reach the nectar. These Hummzinger
Bermuda – Removing from Zoysia Lawn
Q: How do I remove Bermuda grass that is growing in my Emerald Zoysia lawn? A: I found this on the Web: "The postemergence herbicide Fusilade II (click for sources) (active ingredient fluazifop, fluazifop-
Q: I need advice on nursing some sick trees back to health. I believe I severely hurt three very young trees when I treated them for Japanese beetles. I used a very strong concentration of Sevin on two cherry tre
Q: I am sending you a picture of my papaya tree. I planted the seed in my garden last year. It was about 2 feet high when I transplanted it to a large pot and put it in the garage by a window last fall. This pas
Q: We put in new St Augustine lawn in May. In September, I noticed some yellow patches. At first I thought chinch bugs so I put out insecticide. The spots are not solid yellow but have some green in it. Some are
Mosquitoes – Using Yard Sprays
Q: I've just read your website information on mosquitoes, but it was articles from 2002–before the new yard sprays that I see in the garden centers this summer. Most of these sprays claim to work for
Q: Attached is a photo of a tree (maple, I believe) that is in the woods in my front yard in Buford, Georgia. Apparently, a branch grew out of the tree, then somehow reversed course and actually grew back into th
Q: I planted bearded iris roots in early November and now they have shoots about six inches tall. Will these survive the winter? Should I trim or replant? A: This is a common question each winter. Fall-planted
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