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for EAB Updates
New Heights Plant Health Care (PHC)
Is the Emerald Ash Borer in Colorado yet?
Yes, Emerald Ash borer was found in Boulder, CO on September 23, 2013. This finding is the first in Colorado and the furthest West that the bug has been spotted. Boulder County and surrounding areas are now under quarantine from the Colorado Department of Agriculture. It is estimated that the bug has been here for 2-3 years prior to detection.
Should I Treat My Ash Tree for Emerald Ash Borer?
Ash trees in Emerald Ash Borer infested areas will generally die and need to be removed within 2-4 years of bug presence, if not treated.
Applications have a greater chance of success if applied prior to getting the bug in the said tree. As research continues, EAB applications are becoming less costly and can provide protection for over a one year period, before reapplication is necessary.
Things to consider:
Old, damaged, or unhealthy trees may not respond well to treatment , thus removal and/ or replacement of the tree may be a better option
Areas with high density or ash only trees, aesthetically valued trees, and trees contributing to property value that are in average to good health can be saved if treated promptly and on schedule.
What happens after I schedule an appointment
for Emerald Ash Borer Treatment?
Deep root feeding your tree is highly recommended, preemptively, to increase your trees natural defenses and encourage movement of EAB application throughout.
Smaller trees (under 15" diameter) can be treated with a basal trunk spray that is absorbed through tree bark and dispersed up tree.
Larger trees (15" plus diameter) are treated with a closed injection system. Small holes are drilled in the base of the tree, plugs are inserted that prevent any back flow of insecticide, and finally pressurized injections of are put into the tree via the plug system.
TREE-age™, emamectin benzoate, applications May-October
TreeAzin™, azadirachtin applications May-June
Applications are not as effective during drought conditions. Drought stricken trees conserve water at their core and do not provide adequate dispersement throughout tree.
What Is Used to Treat EAB?
TREE-age™, emamectin benzoate, has been shown to be effective in preventing tree death from Emerald Ash Borer. Single treatments of emamectin benzoate can protect trees for two years.
We are also following the use of the bio-pesticide, TreeAzin by the Canadian Forest Service and BioForest. It is derived from seed extracts of the neem tree. This product has been shown to be effective in the killing EAB larvae; and in the reduction of egg fertility and viability in female EAB's feeding on treated trees.
TreeAzin™, azadirachtin, is considered low risk to other animals, including birds, bees, and mammals.
"According to a 2010 Canadian Forest Service publication, the botanical origin of TreeAzin, coupled with its low risk toxicological characteristics, makes it suitable for use in urban settings and environmentally sensitive areas."
TreeAzin is best applied prior to bug presence in tree, and is not effective when canopy dieback passes 30%.
Studies have yet to determine how many seasons a single treatment of azadirachtin can protect an ash tree for.
Tree Spray vs Micro-Injection
In recent years tree spray applications have been transformed from the traditional all in one, kill all, formula to disease and tree specific, low pressure, targeted applications. This makes them more effective and less toxic to the environment.
Micro injection also uses a targeted formula that is injected directly in the tree's phloem layer and dispersed internally throughout the tree's vascular system.
Whether to spray or inject is often based on the insect's developmental stage (ie. flying, caterpillar, or larvae nesting under bark) as well as locational considerations, and personal preference.
Organic and Natural Predation Solutions
We are currently developing a program to include ladybugs in our plant health care. One ladybug can consume up to 5000 aphids in its lifetime, and will also feed on a variety of scale insects, leafhoppers, mealy bugs, and mites.
Organicallly, our deep root feedings are a combination of nitrogen based organic fertilizers and microbial foods.
CHALLENGES OF THE URBAN TREE
Poor and Compacted Soils
Colorado's soils are notoriously low in nitrogen, phosphorus, and potassium. In addition, soil compaction and competing root systems in urban environments decrease the amount of minerals and water the trees' roots can obtain.
Due to these factors TREE FERTILIZING, SOIL AMENDMENT, and DEEP ROOT FEEDING are important proactive steps to increase the availability of minerals, water, oxygen, as well as loosen compacted soil around the tree. In turn, overall vigor can return and enable the tree to use its own defenses against insects and disease.
Insect Ability to Overwinter in Warmer City Environments
Some insects that would normally die during winter freezes are now able to survive the winter months by sheltering in warmer urban areas. This survival strategy allows the insects to grow in both population and habitat area.
Non-Native Insect and Disease Infestations
Due to tree concentration, insect and disease transference rates are high in urban environments. Lack of natural predators and the planting of non-native species have led to the introduction of invasive species and maladaptive growth.
All of these stressors predispose urban trees to a greater risk of insect and disease infestation. New Heights Plant Health Care, LLC carries a large selection of DISEASE AND INSECT SPECIFIC MICRO INJECTIONS, as well as traditional TREE SPRAY.
Poor Drainage and Restricted Growth Areas Due to Initial Planting
Urban planting often results in less than optimal placement of trees. Cramped root areas and poor water drainage often results in fungal growths which weaken the tree and make it a good candidate for infestation.
Many insects carry out a symbiotic relationship with fungoid when attacking a tree. MICRO-INJECTED FUNGICIDES can provide systemic relief for the tree and lessen the chance of attack from insects and disease.
EMERALD ASH BORER ARRIVES IN COLORADO
Statewide EAB Infestation
Quarantine Area: Federal Statewide
EAB established statewide
Quarantine Area: Federal Statewide
Statewide EAB outbreaks Quarantine Area:
Statewide EAB Infestation Quarantine Area: Federal Statewide and Intrastate
Localized EAB Quarantine Area: Federal Statewide
Statewide EAB outbreaks
Quarantine Area: Federal Statewide
Detected: Summer 2008
Quarantine Area: Ottawa and surrounding areas
Statewide EAB infestations
Majority of counties
NE 29 counties detecting EAB
21 counties E side of state detecting EAB
Anderson, Campbell, Claiborne, Cocke, Blount, Grainger, Greene, Hamblen, Hamilton, Hancock, Hawkins, Jackson, Jefferson, Knox, Loudon, Monroe, Roane, Scott, Sevier, Smith and Union Counties
Detected: 7/2008 (2003)
Statewide EAB outbreaks Quarantine Area: Federal Statewide
Quarantine Area: Granville, Person, and Vance counties
Dekalb and Fulton Counties proposed for quarantine
4 Counties confirming EAB
25 Eastern Counties
Firewood labeling statewide
Statewide EAB establishment
Quarantine Area: 15 town and 4 counties (All Mainland Areas)
Quarantine area: Merrimack County
Localized EAB Quarantine Area: Wyandette and Johnson County
Quarantine Area: Boulder County
Detected: Summer 2002 Windsor
Quarantine: S tip of Ontario
Statewide EAB Outbreaks Quarantine Area: Federal Statewide
SW Corner EAB Outbreaks Quarantine Area: 19 Counties (SW)
Localized EAB Quarantine Area: Ramsey, Hennepin, Houston, and Winona Counties
Rollover or tap to view current EAB Conditions and Quarantine Learn More
Areas in red indicate positive Emerald Ash Borer detection
New Heights Plant Health Care, LLC is locally owned, operated and provides total tree care for the Colorado Front Range. Our employees are all certified applicators.
We believe in maintaining healthy trees and tree growth through deep root feedings and preventative treatments, so that trees do not become dangerous and on the slate for removal.
New Heights strives to stay above industry standards by using the latest technologies and environmentally friendly plant health applications.