The Rockdale Gardener

Gardening Posts From Rockdale Cooperative Extension

What is causing this circle around my tree?

There are several reasons why a circle might appear in the turf surrounding a tree. No, not aliens or crop circles. Sometimes there are many possible scenarios for a landscape phenomena. For instance, here four differing suggestions as to what could be causing the grass turn brown in a circle…
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To Apply Spring Preemergent Herbicides Or Not To Apply…That is the Question

Two Choices: 1. Perfect Lawns require Spring Preemergent Herbicides  If you want your lawn to be as weed-free as a golf course, then you must apply preemergent herbicides. These chemicals prevent weed seed from germinating and kill tiny weeds. The time for preemergent herbicide application is now: apply preemergent herbicides between…
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Large Patch Fungus Killing Warm Season Grasses This Fall

The large patch fungus attacks warm season turf during cool wet periods. The fungus eats at the plants roots, killing the grass in distinct near-circular patches. Dr. Alfredo Martinez, UGA’s Turfgrass Disease specialist, has written a really good synopsis of the disease here: Large patch disease is favored by: •…
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Ambrosia Beetles Kill Japanese Maples

If you own a Japanese maple, flowering cherry tree, redbud or any smooth barked tree, be vigilant! An insect pest is out there stalking your prized landscape tree. It is very tiny but it can bring even large trees down. This insect is an exotic invasive known as the Granulate/Asian ambrosia…
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Butterfly Houses and The Rosalynn Carter Butterfly Trail

Butterflies are awesome…who doesn’t like butterflies? They are super important ecologically as pollinators and are beautiful at that! If you have or manage a butterfly garden, perhaps you should join the Rosalynn Carter Butterfly Trail. According to the website, “The butterfly trail in Plains, GA began due to Mrs. Carter’s…
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Leyland Cypress Gets Really BIG!!!

In this article from the UK, homeowners had to take action after their neighbor’s Leyland Cypresses overgrew their property! I’m afraid this will happen in the US eventually. Leylands Get Really Big! Plant Them Far Enough Apart. Leyland cypress (x Cupressocyparis leylandii) is one of the most commonly used landscape trees…
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