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What Are Those Odd Growths on My Trees?

Oct 10, 2024

What Are Those Odd Growths on My Trees?

Trees are sturdy and durable entities with proper care. However, they are susceptible to infections and infestation, which may require professional intervention to prevent further damage or tree removal emergencies. A common problem that homeowners dread is galls, which are abnormal growths that may look like severe health complications. Fortunately, galls only affect the aesthetics of your trees, so you don’t have to worry about premature removal. At Arbor & Acre, we understand the importance of a healthy and lush landscape. Our arborists provide tailored solutions to help you achieve this goal without breaking the bank.

What Are Galls?

Gals are abnormal growths on trees, stems, and shrubs that are often caused by insects. Industry professionals like arborists refer to galls as ball-shaped or similar to a wart because of their round shape. In addition, galls appear in different colors, such as green, yellow, black, and red. These growths provide the ideal conditions for insects like aphids, mites, and midges, among others.

In rare cases, bacteria, viruses, nematodes, and fungi can cause galls. This calls for the expertise of tree service provider to identify the primary cause and effective solutions to prevent further deterioration. Even if the damage is not noticeable initially, delaying proper care can cause plant death and tree removal.

Types of Galls

Galls grow on different trees, but there are species that are more susceptible. Let’s delve into common galls you should know to ensure you make informed landscaping decisions.

Oak Tree Galls

The most common type of galls are the ones that grow on oak trees. These tree species shelter over 800 wasp varieties and other insects, hence the need to act quickly. The last thing you want is a yard full of harmful insects, compromising the quality of your yard, and the safety of your loved ones.

Oak Apple Galls

Oak apple galls get their name from the similarities they share with apples. These unusual growths are formed by a gall wasp, and often reach up to 2 inches in diameter. As stated, galls don’t cause plant death, but regular care by a tree service professional is crucial. If you notice oak apple galls, schedule an inspection with a tree care company to determine the cause, severity, and control measures.

Horned Oak Galls

These growths grow on the stems of willow and pin oak trees. Like the oak apple galls, they also reach a diameter of up to 2 inches. Horned oak galls have a wooden appearance, and cause branches to girdle and die back. This can cause injury to your oaks, leading to health decline over time and tree removal if ignored.  

Since galls can grow on different tree species besides oaks, you may notice them on your yard. These strange-looking growths may raise concerns initially, but it is just a result of insects and plants coexisting. If you come across galls on your trees, contact the experts at Arbor & Acre for a thorough inspection and effective solutions. As a trusted tree care company, we leverage extensive knowledge and experience to keep you trees and landscape in tip-top shape.

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