5 Tree Parasites You Have to Remove and Why

The secret to making sure your trees are healthy, sturdy, and enjoy long lives is to give them frequent access to water and nutrients. However, if you notice odd plants encroaching on your trees or surrounding them, this may be a sign that you have a parasitic plant. You shouldn’t ignore these signs. They can have a lethal effect on your tree’s appearance and health.

In this article, we’ll discuss the 5 tree parasites and why you have to remove them immediately. We’ll also present some tips to identify these silent threats so you can help protect your trees and keep your outdoor spaces thriving.

What Are Tree Parasites?

Tree parasites are harmful organisms that infest trees, causing damage and potentially leading to their decline or death. They can be detrimental to the health and structural integrity of trees  Proper identification and timely removal or treatment of these parasites are essential for preserving the vitality and longevity of your trees.

A lot of parasitic plants are deficient in chlorophyll, a natural food and energy source that plants need for photosynthesis — the process of converting solar energy into nutrition. Because they cannot photosynthesize, chloroplast-deficient plants must take their nutrition from a host plant, such as a healthy tree. 

7 Common Tree Parasites You Should Get Rid Of

Tree parasites can also be caused by fungi, bacteria, insects, or other animals that infect or infest the tree and damage its tissues. However, certain parasites might be advantageous or beneficial for the tree, meaning they might not need to be removed. Prior to taking any treatment, it is critical to determine the type and severity of the parasite. 

• Dwarf mistletoe — A parasitic plant that consumes the host tree of vital nutrients, causing swelling, distortion, and stunted growth, leaving the tree vulnerable to other diseases.
• Dodder — A stemless, leafless vine that spreads other plants' stems and leaves and absorbs their sap. They can seriously weaken the tree and increase its susceptibility to disease, parasites, and other pests. 
• Tar Spot — A common fungal disease that appears in late spring and early summer is called tar spot, which usually affects maple trees. It is identified by elevated black dots or yellowish blotches on the leaves that resemble tar globules. 
• Sooty Mold — A fungal condition called sooty mold is identified by a velvety, black coating that looks like ash. It frequently appears on leaves coated in honeydew, a sticky material usually secreted by scale insects or aphids. The fungus thrives on the leaf surface thanks to the honeydew, then spreads by air currents and rainwash. 
• Powdery Mildew — A fungal illness that decreases the vitality and beauty of leaves and coats them in a white, powdery layer.
• Leaf Rust — A fungal disease that lowers photosynthesis and leaves leaves with orange, yellow, or brown patches.
• Pyrola — A low-growing herb that clings to tree and shrub roots, stealing them of their nutrients and water.

Why You Need To Remove Tree Parasites

Tree parasites, whether they are insects, fungi, or other invaders, can wreak havoc on your beloved trees and landscape. Consulting with a qualified arborist is advisable, as they can provide a thorough assessment and recommend the most suitable and safe approach for your trees. 

Here are some of the biggest reasons to remove tree parasites

• Preserve Tree Health

Tree parasites can weaken trees, causing wilting leaves, branch dieback, and even death. By removing them, you safeguard your trees' health and ensure they continue to thrive and provide shade, beauty, and environmental benefits.

• Prevent Disease Spread

Parasites often carry diseases that can spread to nearby trees, turning a localized problem into an epidemic. Timely removal can prevent the contagion from affecting your entire green lawn.

• Enhance Aesthetic Appeal

Healthy, parasite-free trees contribute to a beautiful landscape. Removing tree parasites helps maintain the visual charm and value of your property, making it more appealing to residents, visitors, and potential buyers.

• Protect Ecosystem Balance

Trees play a vital role in ecosystems, providing habitat and food for various wildlife species. Parasite-infested trees can disrupt this delicate balance. Removing tree parasites helps maintain a healthy environment for both flora and fauna.

4 Essential Tips to Remove Tree Parasites

There are several ways to manage tree parasites, including trimming, spraying, injecting, or using chemical or biological agents. The first step is to identify the type of parasite affecting your tree accurately. Additionally, implementing preventive measures like regular inspections, proper tree care, and maintaining soil health can reduce the likelihood of future infestations.

• Pruning — For some parasites like caterpillars, aphids, or scales, you can prune affected branches and remove the infested areas. Be sure to use sterilized pruning tools to prevent the spread of disease.
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  Insecticides, Fungicides, or Pesticides — In severe insect infestations, you may need to use insecticides or pesticides. Choose the appropriate fungicide for your tree and follow the instructions carefully.
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  Remove Infected Trees — In cases where the tree is severely infested or beyond saving, it may be necessary to remove the tree to prevent the parasite from spreading to other nearby trees.

• Consult a Professional Arborist  — When dealing with complex or severe infestations, it's advisable to consult a professional arborist. They have the expertise to assess the situation and recommend the best action.