Insect and Disease Management

Left Unchecked, Tree Diseases and Insects Can Become Major Health Care Concerns

Trees provide a multitude of benefits but they can also be prone to insect and disease problems. Some problems are minor but others can be a major problem or potentially cause the loss of a tree. Recognizing and managing these types of issues requires an experienced and knowledgeable arborist.

Currently, Dallas residents are bracing for the Emerald Ash Borer to present itself in Dallas County. Read one of several articles featured on our website about this invasive borer known to be in Tarrant, Denton and other surrounding counties.

Tree Insects and Diseases

Tree insect and disease problems exist when there is an ideal host (your tree), a problematic insect or disease is present (that likes your tree), and the right environment for the growth or expansion of the problem (not good news for your tree). Some insects and their damage may not cause major health concerns while other insects can cause the loss of a tree. The same is true with tree diseases or pathogens.

We believe in a basic tree health care philosophy that only treats problems which can potentially cause major health concerns or the loss of a tree. We also prescribe methods that manage a problem with minimal impact to our natural world, if at all possible. We only recommend what we feel is needed for a tree as none of our arborists have ever been on commission nor are they required to meet sales quota’s.

The Live Oak pictured on the right shows classic signs of Oak Wilt. To read a comprehensive four-part article on Oak Wilt, select the Oak Wilt Part One button below to begin the article series.


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Apple tree leaves with insect damage

Tree Diseases

Some plant pathogens are of minor concern to a tree’s health most years, such as minor leaf spot fungus infections, minor blight infections, or Oak Leaf Blister. Pathogens can be slow killers such as Bacterial Leaf Scorch, while others can be quick and deadly pathogens, such as Oak Wilt, Dutch Elm Disease, or Cotton Root Rot. Our article section covers many of these subjects as an educated client is the key to healthy and long-lived trees.

Some diseases happen over time, especially in non-native plants and trees. For years, the Italian Cypress has been the exclamation mark in North Central Texas landscapes. Few trees or large shrubs provide such a columnar element of grey-green evergreen foliage. Landscape architects and gardeners alike have selected and planted Italian Cypress to accent building architecture and to add drama to pools and backyard terraces. What plant selection could be better for providing landscape screening when height is a necessity and width must be restrained?

Recently, Italian Cypress, Cupressus sempervirens, has found our urban environment less hospitable than its native Mediterranean origins. Learn more about the disease and insect challenges that come with growing Italian Cypress in North Central Texas.

Tree Insects

Some tree insects may only have one generation in a year or their populations do not grow to large numbers and only cause minor damage, such as a Spring Canker Worm, Tree Hoppers, Leaf Minors, or Lacebugs. In other cases, insects can have multiple generations or grow to numbers that can threaten the health of a tree or cause its loss such as the Emerald Ash Borer, Pine Bark Beetles, or Flat Headed Apple Tree Borer. Experienced consulting arborists know when to manage a problem and when to leave it alone and let nature take its course.

Deciding how to manage tree insects can be somewhat of a challenge. For example, bagworms can be plucked from the host tree as the first line of defense. However, this approach is only practical when the tree is small and the bagworms can be reached. To learn about the do’s and don’ts of dealing with bagworms, select the corresponding button below.

The Emerald Ash Borer, previously found in Tarrant County in 2018, is confirmed to have been found in Denton and Bowie Counties in 2020. This destructive, invasive, wood boring pest of all native species of Ash trees is a significant threat to Ash trees everywhere. They kill their host tree typically within two-to five years of infestation.

If you suspect your Ash tree has Emerald Ash Borers, it is important to have a certified arborist inspect your tree. Learn more in Dr. Mike Merchant’s article in our article collection.

If your tree has pests and you want to leave the task of managing them to the professionals, contact your Aspen Tree Service certified arborist. He or she will design an insect management plan to fit your specific needs.


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CUSTOMER Testimonials

Aspen Tree Service
Based on 66 reviews
We highly recommend this company and their team of experts. Service and estimate was supportive and honest, the crew was thorough and careful with a challenging job, and clean up was superior. Very professional and did an excellent job with tree trimming, pruning, and large limb removals.
Great work from friendly and professional people
They did a great job! It took longer than expected to get some parts with supply chain issues, but they got it done just in time before our house went on the market.They don't knock willy nilly just trying to get you to pay for services you don't need. We were fully aware this tree was in need of care and had forgotten due to other home issues like foundation repair and new hvac.Luckily, they knocked on the door to remind us and offered a good package deal on a bolt and cable for 1 tree, and pruning for all 4.They were fast on the pruning, and worked their hardest to get the needed part for the bolt placement.Good and honest company that cares about their service and reputation. Highly Recommend!
Want someone you can trust? Tim came to consult us on our beloved pecan tree. Friendly. Accessible. Knowledgable. But mostly honest. He could have tried to sell me things I didn't need but he told me the truth about what I *didn't* need and saved me time and trouble. He truly looks out for the best for his clients and prospects. I want to do business with honest people like this!
AJ & his team were great. We had a tree split in half during a windstorm in a very tough location. They were out there very quickly and removed it without any part of the tree falling on the house which was a very likely scenario. They were prompt & the communication was great. Would definitely use them again!
They were on time, very professional, and courteous. They did a great job trimming our neighbors (and ours) unruly tree. Was even more amazed at the fantastic job they did with clean up. Very happy with Aspen and the quality work they did. Great job!
AJ and his team did amazing work with the tree removal service we requested! Thanks guys!
I have worked with the Aspen Team on multiple occasions and they have done a class A job everytime. Quick, efficient, great work, and affordable. Love working with them and will continue to.
the crew were on time, professional, and clearly had a system for keeping everyone on site safe.
Aspen Tree Service was fantastic!! Professional, on time, efficient, friendly, informative! We will definitely use them again!! Thanks to you and your Aspen team our beautiful oak tree looks better than ever!! Greatly appreciate it!
Two thumbs up! Excellent work and great customer service. You won't be disappointed.
The team did a great job removing a dead tree and pruning live oaks and other tall tres in my yard (30’+). Everything looks terrific. The team was thorough and worked until the job was fully complete and I was satisfied. And their clean up was spotless. All the debris is gone. Every twig, every leaf.
Can't thank Aspen Tree Service enough for pruning trees at my mom's house. Great job, you can actually see the house again!!
Great company to work with. AJ is a knowledgeable arborist and has a great crew.
I responded to an add offering wood from a lot that Aspen Tree Service was clearing. The guys at the site, including AJ, were incredibly helpful in helping me load up the wood. I can only imagine they are just as tremendously courteous and professional in the rest of their business.
I can not give enough praise to Mike and his team at Aspen Tree Service. Not only was he courteous and responsive to all my questions but the removal of the tree and clean up was done professionally. We had a tree in a very bad location on the property near power/telephone lines, building and a high traffic public road. Aspen came out on time and worked quickly and followed up with me to make sure the service done was up to my standards. Aspen Tree Service and I will be working together on any other projects that I need to handle.
I had a big dead oak that that had rotted and partially fallen on my house. Aspen removed it and grinded the stump. I even had them prune several trees in the back yard. I was please with their professional conduct and speedy service. I also enjoyed chatting with the owner and crew. I would definitely recommend utilizing Aspen Tree service: I know I will.
AJ and his crew did such an excellent job removing a damaged tree on our property that had fallen on a neighbor’s fence! They were very responsive, did a great job removing the tree, and went as far as washing all the debris off the roof. They even cut and stacked the logs for firewood. Very pleased across the board with Aspen and will use them for all our future needs!
AJ and his crew did such an excellent job removing a damaged tree on our property that had fallen on a neighbor’s fence! They were very responsive, did a great job removing the tree, and went as far as washing all the debris off the roof. They even cut and stacked the logs for firewood, no charge! Very pleased across the board with Aspen and will use them for all our future needs!
My neighbor's trees overhang my house, so I was glad to engage Aspen as someone the neighbors trusted too. That's how I met them.My biggest issue was one of my trees (50+ year old elm), has been having issues, but Aspen will help it live longer.They also cut down some volunteer trees, took out some poison ivy that I didn't know about on the back of my lot, and cleaned up a live oak leaf situation that had been lingering.I was at work while they were here, but the I am pretty sure they had a whole crew out after I left at 8:30am and finished before 3:30pm.I would definitely hire them again.

“If you think it’s expensive to hire a professional to do the job, wait until you hire an amateur.”



Wylie, TX 75098


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