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Care   Thinking ahead...  

I know it is difficult to think about fall when it is 90 plus degrees outside, but when it comes to your landscape it pays to stay a couple steps ahead.

Fall or Winter are the best times of year to prune trees that have related pathogens. Fireblight and Dutch Elm Disease are two diseases that have to be taken care of in the dormant season. Many homeowners see the effects of Fireblight in the summer time and become anxious to do something about it, but unfortunately, pruning trees affected by fireblight during the growing season can make a bad situation even worse. The likelihood of spreading an infection through pruning cuts is high even when special care is taken to clean and sanitize your tools. The dormant season offers a lull in the diseases activity and mobility in the environment. The signs and symptoms of Fireblight are also very easy to recognize in the dormant season because the affected tissue often retains the diseased leaf material. Since the rest of the leaves have fallen off it is easier to ensure that more of the pathogen will be removed.

Similarly, pruning our beautiful American Elm trees in the dormant season is also ideal. The cold temperatures assure us that the disease is dormant, and likewise the vectoring insect is also not present. When spring comes the trees have time to begin healing the wounds created during the pruning before the beetles begin to spread the disease again. The healthier the trees are, the less likely they are to be attacked by the beetles and infected by Dutch Elm Disease.

The list of ideal trees for fall and winter pruning is long and include Apple, Crabapple, Hawthorne, Mtn. Ash, Elm, Peach, Pear, and Cherry, to name a few. In addition to fall being ideal for disease related pruning, it is also the best time to prepare your trees for the harsh winter storms that are sure to come. It is important to meet with your Arborist in order to assess the health of your plants and formulate a plan for the fall season. Discounts are also in place to save you money by performing pruning operations in the winter season. Keep an eye out for your fall/ winter pruning discount post card coming in your mailbox soon.

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Care   Japanese Beetle – Photo: David Cappaert.  

Two straight months of extremely high temperatures has taken its toll on many lawns, and now we are seeing the return of an unwelcomed pest to make matters worse.

The extreme temperatures and long spans of drought conditions have begun to take a toll on many homeowners' lawns. Large brown patches from the intense sun are made worse by a very unwelcome pest. The Japanese Beetle is making its presence known on turf areas, shrubs, and trees alike. In the larval stage, Japanese Beetle will feed on grass, shrub, and tree roots. The larva, or grubs, will spend about 9 to 10 months in the soil feeding on roots. Adults are seen in late June through August. The adults feed on over 300 species of plants. Controls can be applied to both the turf area as well as the above ground plants. A combination of control strategies is recommended when populations reach high levels. Currently the Colorado Department of Agriculture is collecting information on the population size, and range in Colorado. Please contact your Arborist if you think you have Japanese Beetles visiting your property.

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Care   Aphids  

Summer Insect Update! Mild spring conditions have resulted in population explosions in several insects that damage our trees and shrubs.

In Colorado, the month of May normally includes several very cold nights and even a few snow storms. These lagging winter conditions help to reduce several insect's populations as they begin to come out of their dormancy. The spring of 2010 gave us a May that was wonderfully mild, with only three nights that dropped below freezing and none that went below 30 degrees. These mild conditions along with one of the warmest summers on record have combined to create conditions that are ideal for insect development. And the insects have taken advantage.

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Care   Thrip  

We have seen extremely high populations of mealybug, aphids, mites, plant bug, thrips, various caterpillars, scale and beetles. These insects inflict tremendous amounts of damage on our landscape plants. In typical seasons the damage is stressful to the plants, but the plants can recover. 2010 has resulted in populations that are so high that they are completely overtaking even the established plants.Monitoring your plant material is the best way to stay ahead of insect and disease issues. Mountain High's Arborists and Plant Health Care Technicians are here to help you keep a watchful eye on your landscapes and keep them healthy. Please let us know if we can help you.

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Care   Shovels built from Guns & Rifles  
Community Partnerships

1,527 weapon destroyed.
1,527 shovels fabricated.
1,527 trees to plant.

On July 26, Ralph Bronk and Mountain High Tree helped plant trees at a local elementary school as part of the Biennial of the America’s celebration in Denver.

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Care   MHT Team Planting Trees  

The shovels used were made from guns and rifles collected in a violent area in Mexico. What were once weapons are now tools to plant trees and hope. The event was coordinated by Learning Landscapes, a forward thinking program at University of Colorado Denver that connects the design and construction of urban public spaces with healthy initiatives.


Mountain High Tree sponsors SummerToast 2010

Come join us for the 8th Annual SummerToast event at Writer Square on August 5th from 5-8:30pm. This is Denver's Largest Business Networking event with complimentary food and beverages.

Your $20 donation helps raise funds for

Register & learn more:

B.U.D. Referral Program - Refer a friend and you both get $10!

Check out our website for more tips:
Tree Summer Edition
August 1, 2010
  Mountain High Tree,
Lawn & Landscape

5717 W. 11th Ave.
Lakewood, CO, 80214

Mountain High Tree
Care & Consulting


3450 Astrozon Place
Colorado Springs, CO 80910

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from Craig Little

Craig LittleTip of the Month:

Irrigation Checkup

It has been several months since you turned on your irrigation system so go through a "System Checkup" now. Walk around and actually watch to make sure that all heads are working properly. If you have drip in bed areas, you may have to feel around and make sure they are working. It only takes a few hot days to put plants into stressed and shocked conditions that are difficult to recover from.

Customer Testimonials:

Your service and your people are the best. Thanks
Audrey in Greenwood Village
Customer since 2003

Always professional, always do a good job.
Margie in Wheat Ridge Customer since 2002

So happy you have joined with Swiss Enterprises.
Ann in Englewood
Customer since 2004

Your employees are professional and care about doing a good job.
Kathy in Denver
Customer since 2007

Recycled Mulch

We Recycle We recycle.

Mountain High Tree, Lawn & Landscape  | 5717 W. 11th Ave. | Lakewood, Colorado | 80214 | 303.232.0666
Mountain High Tree Service & Consulting
| 3450 Astrozon Pl. | Colorado Springs, Colorado | 80910 | 719-444-8800
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