Pest Plants

What Kills Smilax?

Q: We have smilax growing up into a dogwood tree through large azaleas. What will kill it?  A: Smilax is very tough to kill with any method other than pulling it or digging it out. If you excavate the roots,...

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Invading Honeysuckle

Q: I hate honeysuckle. It invades everything from anise to camellias.  A: I share your dislike. Despite the sweet scent of its spring flowers, this vine grows vigorously in places where it’s not wanted. I think your best bet would...

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How Do Get New Areas To Grow Moss And How To Control Weeds?

Q: I have a nice, flat backyard that will not grow grass, but does grow moss, which I love. Moss is green, it’s good for croquet, and I don’t have to cut it. How do you get new areas to...

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Huge Outbreak Of Mushrooms

Q: What would cause a huge outbreak of mushrooms in both my lawn and pine islands? Is there anything I can do to prevent them from returning? A: Mushrooms are just the “flowers” of some fungus that is decomposing organic...

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How Do I Get Rid Of Nutsedge?

Q: A load of topsoil I bought for my flower garden brought in nutsedge tubers as well. This year I covered the soil with landscape cloth and planted zinnias in holes I poked in it. How long do I have...

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Clover Cover Crop – Mow Before Tilling?

Q: Last fall we planted red clover in our raised beds. This is the first time we have planted a cover crop. Your web page recommends mowing the clover in spring. It will be impossible to mow since it’s a...

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Daylilies – Hit With A String Trimmer

Q: Our established daylilies were hit with a string trimmer. They are now little 2″-3″ stumps. What can we do to help keep them alive?  A: If the daylilies were healthy before they were damaged, I would expect them to...

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Mulberry Weed – Getting Rid Of It

Q: I have been invaded by mulberry weed. Any advice to get rid of it forever? A: This is a plant to which the phrase “get rid of it forever” does not apply. It sets seed only a few weeks...

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Doveweed vs Buttonweed – Identification

Q: What’s the difference between doveweed and buttonweed? A: They are very similar. If you find the plant when it’s blooming, the ID is easy. Doveweed has blue or purple flowers; buttonweed has white flowers. See Doveweed vs Buttonweed vs...

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Lawnmower Wheel Compaction – Weeds

Q: While walking in my neighborhood, I saw a weird stripe pattern in my neighbor’s lawn. What do you think caused it? A: I posted this on Facebook and received many guesses. The correct answer? The neighbors report that they...

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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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How Do I Kill Wisteria?

Q: How do I kill wisteria? A: Killing the main vine is not hard: simply sever it completely and everything beyond that point will die. The problem comes with killing all the little sprouts that will come up from the...

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Moss Pathway – Will Vinegar Kill The Weeds?

Q: Can I use vinegar to kill the weeds in my moss pathway? A: I think the vinegar would be likely to kill both the weeds and the moss. I have had good success lightly misting weeds with glyphosate (Roundup,...

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Daffodil Plot Taken Over By Grass And Weeds

Q: I have a daffodil plot but over the years it has been taken over by grass and weeds. Would it be best to dig everything up, spray, and put down fabric? A: I think your best option is to...

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Trifoliate Orange – Controlling It

Q: Trifoliate orange is taking over areas of my pasture. What’s the best way to control it? A: To minimize chemical use, cut the plants close to the ground and spray a little bit of glyphosate (Killz-all, Roundup, etc) or...

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Barrier for Monkey Grass

Q: I have monkey grass growing next to my lawn and it is invading via underground runners. How deep should I bury a barrier is to control this? A: I think a barrier buried six inches deep would be fine....

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Wisteria-Rescue/Saving

Q: Our older home deck needs renovation but a huge wisteria has been trained to grow through a hole in the middle of the deck and then climb a big arbor. Will I be able to rescue it? A: I...

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Zoysia – Weeds After Dog Arrives

Q: I’ve always had problems with winter weeds in my zoysia. Last year we got an active dog that runs around a lot. This is what my lawn looks like now. I do not like using chemicals much. A: The...

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