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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Adding Beneficial Insect Preservation to Your Pest Management Business

by Steve D. Pettis Rockdale County Extension Agent Pollinators in the news Pollinators have been headlining the news for months now. With reports of declining Monarch Butterfly populations and honeybee deaths seeming in the news daily, homeowners are becoming aware of the plight of pollinators and other beneficial insects. Just…
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Warm Season Turfgrasses Suffering from Disease This Fall

The picture to the right shows zoysiagrass suffering from a patch disease Fall 2015. The image is classic Rhizoctonia Large Patch. The turf develops brown patches with purple borders as the fungus radiates out from the site of initial infection, consuming the turf roots and damaging the grass. It is always best to…
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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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Scout Trees for Trunk Rotting Fungi Now

Trees planted decades ago in older neighborhoods are in decline in cities all across Georgia. Urban trees tend to have shortened lives, some living no more than fifty to eighty years. Urban forests in many metro areas have begun to mature and decline in overall health. Declining trees are very…
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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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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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