The Rockdale Gardener

Gardening Posts From Rockdale Cooperative Extension

Problems on Cedars This Spring

I have gotten many calls about various cedars/cypress/pine trees (Deodara, Italian, Leyland, etc.)  turning yellow or bronze and dropping needles. There are several things going on right now that could be the problem: Spider mites – cool season spider mites like Southern Red Mite thrive in cooler temperatures. Our relatively cool…
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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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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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Beneficial Insects, Spiders and Mites

The most numerous form of life on earth is the insect and they take care of some of the most basic chores of the natural world. Our beneficial six-legged friends perform processes such as organic matter decomposition, soil aeration, and pollination. They also help to control harmful insects that damage…
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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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