email DLC Arbor info@dlcarbor.com
call dlc arbor for tree insect control 303 378-8000
  • tree aphids create sticky honeydew
  • ash borer identification

    Only the Tree Treatment You Need


DLC Arbor Services only recommends what your trees absolutely require

Much like your primary care physician knows the intricacies of the human body, we specialize in understanding trees. We can spot the early symptoms of unhealthy and dying trees, and we can spot problems like insect infestations and disease before it’s too late to stop them. We are not in the business of selling unnecessary annual service programs. DLC Arbor diagnoses the condition of your trees and prescribes the proper treatment to address it. Whether your tree requires a foliar spray, micro trunk injection or soil application, DLC licensed insect experts diagnose and administer the proper treatment in the least invasive and safest manner possible.

  • Native and Invasive Tree Insects

    Insects are a natural and necessary part of our urban forest ecosystem. Most insects are harmless. That’s why insect identification is so important. The photo above is an ash tree with holes created by the ash/lilac borer, not the emerald ash borer. DLC’s Certified Arborist help property owners identify the type of insects they are dealing with and determine what, if any action is necessary. In some cases, no action is needed when the presence of the insect is beneficial or if it has caused minor damage, and then left the tree.

    Each year new invasive tree insects and diseases arrive in Colorado. In 2014 the emerald ash borer (EAB) was detected in Boulder. Please use this website's EAB page, the DLC blog and our Facebook page to keep informed of the latest news on EAB. There are also many native insect pests such as the mountain pine beetle and ips beetle. Click for a list of tree pests common to the Denver area. If your tree looks unhealthy or is showing symptoms of an insect infestation or disease, give DLC a call and schedule an appointment with our Certified Arborist.

Tree Services Areas Include: Denver, Englewood, Lakewood, Littleton, Parker, Golden, Morrison, Wheatridge, Edgewater, Aurora, Arvada, Centennial, Greenwood Village, Cherry Hills, Bow Mar, Columbine, Evergreen, Conifer, Highlands Ranch, Glendale, Arapahoe, Douglas, Denver County, and Jefferson County

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Latest Blog Posts


Serious Threat to Black Walnut Trees in the Denver Area

The Thousand Canker Disease came to the Front Range on the back of the Walnut Twig Beetle. It is a fungus spread by the beetle tree to tree. Infected trees develop cankers that grow and girdle the tree. Infected black walnut trees die within three years of infection.

Go to blog post

May 19, 2012

Fungus or Insect Problem

Sometimes it is hard to determine exactly what is wrong. A tree that is dying back and has yellow or crinkled leaves could have a fungus or tree insect problem. All the property owner knows is his or her trees look sick. A tree evaluation by a certified arborist is recommended.

Go to blog post

July 27, 2011

Clients Love Us

The best way to show your appreciation for our services is to post a review on your favorite local web directory or referral network like Yelp, Facebook, Angies List, and Team Dave Logan. DLC Arbor is grateful for any feedback on how to improve our tree trimming and tree removal services.