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Your August Colorado Insect Checklist

August Colorado Insect checklist of some common insect-related events - Denver, South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in the South and East Counties area. Year to year variations are considerable, and this should only be used as a guideline to anticipate and [...]

Denver Firewood Sourcing Roundup

Winter’s brought us a lot of ups and downs so far this time around - and a lot of folks who prepared for cold early, seemingly by scarfing up all the available firewood for miles around! Speaking for ArborScape, we’re sadly out of firewood ourselves, with no more available seasoned and for sale until next year. [...]

ArborScape Is Landscape Industry Hidden Gem Again in 2015

We are proud to announce ArborScape has once again earned national recognition as a Landscape Management Industry Hidden Gem, a list from Green Industry Pros. This list includes 45 companies with at least 40% growth in a 6-year period. Although sales growth is a leading factor to place a company on this list, the Green [...]

2016 – 2017 Denver Christmas Tree Recycling

(want to drop off your tree at a site close to you? check out the Denver Post's dropoff location roundup here.) Denver Christmas Tree Recycling is back for another season! Only $20 for curbside pickup, starting right after Christmas on December 27.  We fill up quickly, so schedule your tree recycling today! How it Works [...]

Cold weather-tough perennials for Colorado (part 2)

Cold weather-tough perennials. Few folks value them more than Coloradoans do. Part 2 in ArborScape Blog's series on hardy perennial gardening for our Colorado climate landscapes! See part 1 here. For more adventures in cold-tolerant plants, read on. >> Monarda This must-have perennial develops beautiful flowers that are attractive to both gardeners and insects - [...]

Fire blight treatment and management

Fire blight treatment and management - Part 3 in ArborScape Blog's series on this disease of fruit trees. Read on for details! Part 1 | Part 2 When your fruit tree has been diagnosed with fire blight by a qualified arborist, you'll usually also be provided with a range of options and course of treatment [...]

What are the symptoms of fire blight?

What are the symptoms of fire blight? How is it diagnosed? Part 2 of our series on this serious fruit tree disease - see Part 1 here. Begin watching for fireblight infections in early spring during periods of wet weather. This is when the bacteria begin to produce ooze. Visual symptoms first appear on the [...]

What is Fire Blight?

Fire blight is a bacterial disease that affects certain species in the rose family (Rosaceae). It is especially destructive to apples, pears, and crabapples. The disease also can occur on serviceberries, flowering quinces, cotoneasters, hawthorns, quinces, pyracanthas, blackberries, raspberries, and mountain ashes. Leaves darken and wilt but remain attached to the tree (see above), giving [...]

Boulder County puts EAB-killed ash wood to use

Great coverage from KUNC on an uplifting story of lemons to lemonade. As we know, in 2013 the invasive ash pest Emerald Ash Borer was detected in Boulder County - the furthest west this devastating parasite has so far spread. This prompted a quarantine to prevent ash wood from leaving the county and further allowing the spread [...]

Can I skip raking leaves in the fall? Should I?

Have you heard the latest? Turns out you don’t need to rake your leaves anymore!...except that that isn’t necessarily true. ArborScape Blog dissects the hype for reluctant rakers below. 2015 has been the fall for a chorus of sites and sources to rejoice gardeners and ardent landscapers with the refreshing news that not raking is [...]

Cold weather-tough perennials for Colorado landscaping

When our unpredictable, unforgiving winter storms turn our landscapes into stark piles of brush, Colorado gardeners rethink our planting strategies! Here's a list of winter-hardy perennials that can stand a polar vortex or two - along with helpful survival care tips. Part 1 of 2.   Coneflower Coneflower, often called by its scientific name, Echinacea, is an American [...]

Your November Colorado Insect Checklist

November Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable, and this should be used as a guideline to anticipate and help recognize [...]

Boulder County and DontMoveFirewood.org kick off joint EAB awareness campaign

New in EAB Awareness: The emerald ash borer (EAB), Agrilus planipennis, is an invasive parasitic insect 99% fatal to ash trees left untreated. Native to Asia, the beetle most likely arrived in the U.S. in the 1990s, hidden in wood-packing materials commonly used for shipping - the first detection occurred in southeastern Michigan in 2002. [...]

2016 Colorado Notable Trees Calendars are here!

see more at the Colorado Tree Coalition Oct 8, 2015 Of course it's not quite Halloween yet, and most of us wait until holiday shopping-time to start thinking about new calendars - but it'll be no time before there's Jingle Bells in every store! Scoop the rush with these beautiful new Colorado Notable Trees [...]

Your October Colorado Insect Checklist

October Colorado Insect checklist of some common insect-related events – Denver metro and Boulder, Denver South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in our area. Year to year variations are considerable, and this should be used as a guideline to anticipate and help recognize [...]

9 Fantastic Colorado fall color trees and shrubs

Great Fall Color Plants for the Mountain West One major reason we love Colorado living is the magnificent autumn firework display our wealth of trees provides… and the best recipe for brilliant fall foliage color combines warm days, cool nights, and plenty of sunshine -- sound familiar? Try these underused but worthwhile trees and shrubs for [...]

Caring for Your Trees During Drought

Protecting and Caring for Your Trees During Drought Colorado is a semi-arid, shortgrass prairie with fluctuating weather patterns and inconsistent climate that makes growing trees challenging.  Drought only compounds the challenges. During times of drought there are several effective watering methods recommended to ensure trees receive the required moisture. When to Water During Drought All [...]

Your September Colorado Insect Checklist

September Colorado Insect checklist of some common insect-related events – Denver, South and East  This is a generalized checklist of when some of the more important insect related events tend to occur in the South and East Counties area. Year to year variations are considerable, and this should only be used as a guideline to anticipate and help [...]

Trees on the Roof – of the Courthouse Tower

Friday tree fact: the courthouse tower groves of Greensburg The town of Greensburg, Indiana, is known as the “Tree City” for the over-a-dozen trees that have been growing out of the roof of the Decatur County Courthouse serially for 145 years. (They're believed to have sprouted from seeds in bird droppings.) In 1870, the citizens of Greensburg began [...]

Friday Tree Facts: unique trees of Socotra

Friday Tree Facts - unique trees of Socotra The island of Socotra, situated in the Indian Ocean between Somalia and Yemen,  has been geographically isolated from mainland Africa for the last 6 or 7 million years. Like the Galapagos Islands, this island is teeming with 700 extremely rare species of flora and fauna, a full 1/3 [...]

Boulder County announces EAB infestation plan proposal

Boulder County, the ground-zero area for Emerald Ash Borer discovery in Colorado, has developed a plan to deal with the spread and infestation of the borer as it attacks further ash trees. The proposed management plan provides guidance to staff on the approved options for county-managed ash trees in response to emerald ash borer. The [...]

Friday Tree Fact: Plant Family Values

Studies at McMaster University in Hamilton, Ontario show that plants are capable of recognizing their siblings and will give them preferential treatment, competing less for valuable resources like root space than they otherwise would when surrounded by plants that are "strangers". photo Flickr intherough "Our view of nature is sometimes that nature is [...]

What do you mean, my tree was “frozen”? the November 2014 freeze and landscape damage

skip to: which trees were affected? :|: what should I do now? Seeing brown, silver or dead needles on your conifers? Have you been told by an arborist that your trees or shrubs have “freeze damage”? Read on for an explanation - and steps to take going forward to assist your landscape in recovering. The [...]

Colorado July Insect Checklist

CHECKLIST OF COMMON INSECT RELATED EVENTS - Metro Denver/Boulder Area This is a generalized checklist of when some of the more important insect related events tend to occur in the Central, South and East Counties areas. Year to year variations are considerable and this should only be used as a guideline to anticipate and help recognize [...]

Friday Funfact: the tree that is an entire forest

Seen from a distance, you'd be justified in thinking the Great Banyan Tree in the Acharya Jagadish Chandra Bose Indian Botanic Garden is a small, independent forest.  Yet step into its shade and see the connection of branches -  and you realize: wait, this is all one big, big.....  BIG tree.   from Atlas Obscura: The Great Banyan [...]

EAB Bulletin: Response Team Sets Boulder Traps

Emerald Ash Borer Detection Efforts Intensify Within, Near Boulder BOULDER, Colo. – This week, the Colorado State Forest Service is partnering with Boulder County and the City of Boulder to place more than 65 traps targeting the tree-killing emerald ash borer (EAB). Not actually intended to contain the pest population, the devices instead are being [...]

Friday Funfact: DaVinci’s Tree Theory

page from Da Vinci's notebook 500 years ago, Leonardo Da Vinci observed a simple fact that nobody had apparently ever noticed before: that "all branches of a tree … put together are equal in thickness to its trunk." In other words, if a tree’s branches were folded upward and squeezed together, the tree [...]

What is Pine Sawfly? (and could it affect my trees?)

What is Pine Sawfly? Evergreen sawflies, in general, are caterpillar-like, sawfly larvae and usually prove common springtime pests. Several species feed on the needles of evergreen trees in groups and can cause extensive defoliation in some years. The adult sawfly is a stingless wasp that causes no harm. Light populations may not cause serious damage, [...]

ArborScape Friday tree fact: The Moon Trees

ArborScape Friday Funfact! The Moon Trees In 1971, astronaut Stuart Roosa took 500 seeds aboard Apollo 14 as part of his personal luggage. In his earlier life, Roosa worked for the Forest Service in the early 1950's as a smoke jumper fighting fires and later joined the Air Force and became a test pilot. The [...]

The World’s Most Dangerous Tree

manchineel fruit on a beach by Seldo Voss ArborScape Friday tree fact! Guinness World Record “World’s Most Dangerous Tree” is held by the manchineel tree - There’s an official Guinness World Record for “World’s Most Dangerous Tree,” and it’s held by the manchineel tree from the Caribbean and Gulf of Mexico. The manchineel’s bark [...]

Summer 2015 Tree Trimming Scam Alert

Friends, neighbors, and followers: We all know that this is high time for home improvements, especially tree trimming and other plant health care treatments - and of course, where there’s plentiful activity, there are parasites who take advantage of the bustle.   Here’s a heads-up on the latest tree trimming scam we’ve noticed sweeping the [...]

Emerald Ash Borer Awareness Week 2015

Emerald Ash Borer Awareness Week Week of May 17th to May 23rd, 2015 To generate awareness of this devastating pest, ArborScape Denver Tree Service will be posting information about EAB online throughout the week. Like us on Facebook, follow us on Twitter, or connect with us on below for the latest updates, news and tips. Join [...]

Snowstorm Tree Damage Cleanup Tips, Spring 2017

Trees damaged from Spring snowstorms? March and April are still our snowiest months here in Colorado, and we can expect quite a bit more of our usual heavy snow Spring storms with the incidental challenge of snowstorm tree damage cleanup! If you’re working on clearing away, here are some updated guidelines and regulations from Denver Department [...]

10 more backyard celebration landscaping tips

    It’s time once again for Spring backyard landscaping and décor! Whether it be a graduation party, prom party, or a wedding, if you’ve never tried your hand at a DIY outdoor occasion, you’ll be happily surprised at how rewarding it can be - not to mention how much money you’ll save. And it’s a great [...]

5 landscape design tips for best home energy efficiency

  Home energy efficiency landscaping is much more than an expense toward the eye appeal of your surroundings - it’s an investment in your future property value, as well as your comfort. Thoughtful landscape planning can actually generate value in excess of its initial expenditure by decreasing the expense of heating and cooling. Proper use of [...]

Announcing the 2015 Colorado Arbor Day Poster Contest Winner!

The winner of this year's Colorado Arbor Day Poster Contest, co-sponsored by ArborScape and the Colorado Tree Coalition, is Steck Elementary’s Nick Babiak.  Nick’s poster, on the theme Celebrate Trees in our Community, along with all winning posters from each school, will be on display at the state Capitol Building beginning Monday the 27th and extending through [...]

Drought Preparedness and Drought Remedies

As climate change accelerates, it's important to understand the ramifications of drought, as well as treatment options for your lawn and trees. According to the UCS, "Individual drought periods can be understood as discrete weather events. Climate changes occur over longer periods and can be observed as changes in the patterns of weather events. For instance, [...]

ArborScape announces online EAB cost calculator

In an effort to promote awareness of the latest threat to our urban and wild forests, ArborScape has developed an Emerald Ash Borer cost calculator. This web-based application provides ash tree owners and caretakers a local, simple-to-use tool to help manage their ash trees into the future.   Emerald Ash Borer (EAB) was found in Boulder, [...]

New: Colorado Champion Trees, tree tours, and new tree finder app

    A notable tree is one that is remarkable or distinguished in some way, or one that’s related to a famous or historical person, place, or event. A tree might also be notable if the surrounding community accepts it as being special, based upon its species, uniqueness, or contribution to Notable Tree Tours (pdf) Boulder Colorado [...]

ArborScape Declared Landscape Industry Hidden Gem

We are proud to announce ArborScape has earned national recognition as a Landscape Management Industry Hidden Gem, a list from Green Industry Pros. Specifically, ArborScape has been named number 13 in the nation's landscape and lawn care industry as a leading business both in terms of sales growth and better business practices. ArborScape is dedicated [...]

Selection and Care of Living Christmas Trees

Are "living trees" a practical option? Absolutely! Potted Christmas trees in containers placed in the home and watered like a houseplant, then later transplanted out into your landscaping, are a fantastic and truly "green" choice of tree. Living trees come in all sizes, from small (to use as a tabletop variety), to medium (as a [...]

Lawn Fertilizing Service

When is Lawn Fertilizing Service Effective? Lawn fertilizing service is effective in many circumstances. Time limitations, extenuating circumstances, and an unhealthy looking lawn are just a few times when you can use a little help from a lawn fertilizing service to care for your yard when you cannot. 1) When There Isn't Time to Fertilize [...]

The Latest in Tree Service Technology – Industry Struggles with Green Trucks

 Updated 7/9/2014 Leave it to NPR to find a very compelling new tree service technology called an excavator mulcher. Watch it literally swallow a 30 foot lodge-pole pine.     Made by a Quebec company called Denis CIMAF, it does a tree removal in 15 seconds, a job that would take us two to three [...]

What is Pine Wilt?

Pine wilt is a lethal disease caused by a parasitic native nematode (tiny roundworm), carried to trees by a wood borer insect–the pine sawyer beetle . The main visual symptoms are needles quickly turning straw colored or grey. Exotic pines including Scots, Austrian, and mugo are susceptible to infection by the nematode. Native pines are not [...]

Tree Man Cometh – What to Expect from a Plant Health Care Estimate

 People love their lawns and trees and your pride of ownership is what keeps us in business. Because your plant health care (PHC) estimate can be somewhat mind boggling, we put together a short description of a few of the common treatments we often prescribe for Denver tree services. Pre-Emergent Contrary to popular belief, pre-emergent weed [...]

Free Mulch in Aurora

May 8, 2014 - Mulching is an important part of a successful landscape, especially in Colorado’s arid climate. A 3 to 4 inch layer of wood chips, bark, or other organic material over the soil is recommended because it: HELPS retain soil moisture reduce weeds and controls grass INCREASES soil fertility when mulch decomposes IMPROVES [...]

Does My Town Have Watering Restrictions?

last updated Updates on Colorado watering restrictions for Summer 2015: About 6 inches, on average, of rain fell in the Metro area this spring - that's around 3.5" better than normal. But using water wisely still needs to be a part of our daily reality here in the West - we still have [...]

Emerald Ash Borer Frequently Asked Questions in Colorado

Updated January 28, 2015 Colorado ash tree owners are understandably nervous about the detection of emerald ash borer (EAB) in Boulder, CO.  Since the September 2013 discovery, further studies have identified the age of the infestation as being three to four years old. The Colorado Department of Agriculture asked us to share their EAB hotline [...]

Pre Emergent Lawn Weed Control

  Our pre-emergent lawn fertilization round begins March 13th and will be available through april 15th depending on weather.  Sign up today for the most important fertilizer application of the year. Pre emergent lawn weed control helps prevent broadleaf weeds before they are established. While labeled a weed killer,  more simply it stops the seeds [...]

Deep Root Fertilization and Drought

Colorado is considered rough terrain for plants and wildlife alike.  This is due to our inconsistent climate and tendency to dryness.  Denver has temperatures that range from below zero in the winter,  to 100­°-plus in the summer!  Then dry winds whip across the High Rockies and into the Front Range, leaving only the the hardiest plants [...]

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