Landscaping

Does UGA Test Soil For Weed Killer Chemicals?

Q: You recently responded to a question about wilted vegetable leaves that might be caused by weed killer. I had the same symptoms in a new garden bed I planted with top soil from a nursery. Does UGA test soil...

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Hibiscus – Something Is Eating The Leaves

Q: My hibiscus is growing beautifully but something is eating the leaves. I can’t see any bugs. A: My guess is that your hibiscus has been chewed on by hibiscus sawfly larvae. These caterpillar-like creatures feed on the bottom side...

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Crapemyrtle – White Substance On Leaves

Q: I have a crape myrtle with a white substance on the leaves and no blooms. What do I have? How do I treat it?  A: I’m almost certain you have powdery mildew. Cool nights and warm, humid days provide...

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Pecan Tree – Ways To Treat Pecan Scab

Q: I have a pecan tree that is suffering from pecan scab. I read where the only way to treat it is by spraying the whole tree. I can’t accomplish that. Is there an alternative?  A: There is not an...

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Staghorn Fern – Do Deer Eat This Fern?

Q: We have a very large staghorn fern in Jacksonville that we’ll be taking to an area where there are deer. Do deer eat this fern?  A: I can’t be 100% positive about staghorn ferns but most ferns are deer...

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Bermuda Lawn – Controlling Weeds

A: I’ve had a hard time controlling weeds in my bermuda lawn this year. Is it possible the above-normal rain has had an effect? Q: It’s very possible that the extra rain has benefitted weeds. The definition of a weed...

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Magnolia – How To Encourage New Growth From Trunk?

Q: My twenty-year old magnolia suddenly died over the winter; it was totally brown. Just recently it has sprouted new growth from the trunk. What should I do to encourage it?  A: Nature sometimes finds a way back from the...

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Algae – How To Get Rid Of It From Our Pond

Q: Our small pond in front of our house has been very low. It developed red algae a month ago. My husband dipped his finger in the water and there was green algae underneath the red algae. Can we kill...

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Crapemyrtle – Will Honeybees Be Affected By Insecticide

Q: Will honeybees be affected if I apply a systemic insecticide to my crapemyrtle to control aphids?  A: Crapemyrtle flowers don’t contain nectar, so the effect on bees is minimal. However, other pollinators visit crapemyrtle flowers to feed on pollen....

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Transplanting Mature Azaleas

Q: I have no choice but to transplant some mature azaleas this month. I would really like to cut them back. Can you advise?  A: I remember moving six hydrangeas and ten azaleas on July 4 many years ago. It...

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When Do Kudzu Vines Flower?

Q: When do kudzu vines flower?  A: They are blooming right now! I saw several flowers recently when walking on the newly completed South Peachtree Creek PATH near Mason Mill Park in Decatur. The boardwalk is elevated between kudzu-covered trees...

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Plants With The Name Walter

Q: I’m looking for a plant with the name “Walter” to plant in my garden to honor my great-grandfather. Any suggestions? A: I have an evergreen Walter viburnum, Viburnum obovatum, and a Walter dogwood, Cornus walteri, in my landscape. The...

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Pine Straw And Chip Mulch – Do They Attract Snakes?

Q: Please evaluate pine straw versus chip mulch in attracting snakes to an area. A: Whenever you have a nuisance creature in your landscape, the first question to ask is “Why is it here and not somewhere else?”. Snakes come...

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Summer Blooming Perennials – When Best To Fertilize

Q: When it best to fertilize my summer blooming perennials? A: If you use a liquid fertilizer, fertilize one time at planting, once six weeks later, and another time six weeks after that. Of course a timed-release granular fertilizer, like...

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Applied Pre-emergent in August – Can You Overseed Fescue In October?

Q: If you apply pre-emergent in August can you overseed fescue in October? A: Sure you can, but you won’t get any weed control from the pre-emergent application you put down in August. Most winter weeds germinate in October, just...

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Hydrangeas – Pinker Than Usual This Year

Q: My hydrangeas are more pink than usual this year. Do you know why? A: A: I could suggest theories but I’m not sure they hold water. Hydrangea flower color is determined by the amount of aluminum present in the...

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Garden Compost – What Is Okay To Put In It?

Q: Is it okay to put citrus fruit rinds, coffee grounds, and tea bags in my garden compost? A: Everything except milk and meat products is fine to put in a compost pile. You can add the compost to your...

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Apple Trees – Orange-Yellow Spots On Leaves

Q: We just purchased a new house with a couple of apple trees on the property. The leaves have lots of little orange-yellow spots on them. A: It’s likely cedar-apple rust. Your trees may start dropping leaves soon. Red cedar...

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