Strong and sturdy though trees might seem, like all living organisms, they are prone to diseases and pests. Georgia’s heat and humidity effect which parasites regularly plague local foliage. The tree experts at 678 Ike Tree in Marietta, GA, are professionals in these infestations. Here, the Marietta based tree service details the region’s most common tree pests and how you can protect against and treat them.

5 Common Tree Diseases & Pests in Georgia

1. Black Knot 

Commonly spotted on plum and cherry trees, black knot is a fungal infection. It forms dark, swelling bumps that can grow as large as 2 inches thick and 12 inches long. The disease will weaken, malform, and eventually kill the tree if left untreated. It’s easiest to spot this parasite in winter when the leaves have fallen. A tree service can eliminate the affected branches to prevent the spores from spreading to the rest of your orchard.

2. Powdery Mildew

If you discover white spots or dust on the leaves of your dogwoods or crepe myrtles, it may be powdery mildew. While it should not kill the entire tree, this fungus will stunt its growth. Cut affected leaves and have an arborist apply a fungicide to the remaining leaves. Normal tree pruning will promote airflow to avoid recurrence.

3. Oak Leaf Blister 

Oak leaf blisters can affect all species of oak. The yellowish-white or yellowish-brown lesions reach up to 2 inches in diameter. Treatment and prognosis are similar to powdery mildew. Adequate watering and drainage will aid in the prevention of potential outbreaks.

4. Aphids

If there are no blisters but the leaves are yellow and spotty, aphids may be to blame. These pests eat leaves and sap. There are several species, varying in color. Simple remedies like spraying cold water or wiping the leaves with soapy water mixed with cayenne might be successful preventives if their numbers are small. However, if you have a full-blown infestation, tree services will have more aggressive and efficient methods.

5. Pine Beetle

These bugs infect pines of all varieties that have sustained damage. Females bore into the tree to lay eggs, and while doing so emit pheromones that entice more pine beetles. Then, they eat through the tree, developing little galleries throughout the trunk, systematically killing it. You may see numerous dried, white bumps of resin forming on the surface area. There is no treatment for this infestation, so prevention with regular care is the only solution.
If you reside in Marietta or Metro Atlanta call 678 Ike Tree at (678) 453-8733 if you see any signs of these problems. Their team, certified by the International Society of Arboriculture (ISA), will carefully assess the situation and devise a plan to treat it and prevent further damage. If there are no diseases or pests, they also offer a wide range of tree services, such as pruning and stump removal, which you can learn about here.