Stevenson
Arboriculture
& URBAN FORESTRY
DREW STEVENSON
ISA CERTIFIED Arborist #MW-4507A
ISA Tree Risk Assessment Qualified
563 380-1124
DREW STEVENSON
#MW-4507A
STEVENSON CONSULTING SERVICES
• Tree Risk Assessment/Hazard Tree Evaluation
• Emerald Ash Borer Management
• Tree Inventories/Management Plans
• Diagnosis and Treatment of Tree Pest and Disease
TREE RISK ASSESSMENT/
HAZARD TREE EVALUATION
A tree risk assessment looks at individual trees to
assess the probability of failure using a standardized
and systematic process for assessing tree risk. The
result of a tree risk assessment can provide tree
owners and risk managers with the information to
make informed decisions to enhance tree benefits,
health and longevity.
EMERALD ASH BORER
MANAGEMENT
All species of ash trees are highly susceptible to
infestation by the Emerald Ash Borer and require either
a soil applied or trunk-injected insecticide treatment to
prevent death from EAB. By the time an ash tree shows
obvious symptoms of damage, it is usually too late to
save the tree from EAB. However, preventive treatment
can protect and save your ash tree. Treatment strategies
are dependent on your tree, landscape and EAB
infestation levels. We will develop a custom treatment
strategy to manage EAB effectively.
TREE INVENTORIES/
MANAGEMENT PLANS
The first step to managing your trees is knowing
what trees you have, and then developing a custom
maintenance schedule for your tress with regard to
individual growth patterns, age and current structure.
• Tree Care Recommendations/Plant Health Care
• Tree Preservation/Protecting Trees During Construction
• Young Tree Structural Pruning
• Forestry Services
DIAGNOSIS OF TREE PROBLEMS AND
MANAGEMENT RECOMMENDATIONS
There are many insects, diseases and abiotic
(nonliving) conditions that affect tree health. The
first step to managing these tree problems is a correct
diagnosis of the causal agent or condition. After the
problem has been identified, we will write a detailed
management plan to treat the present condition,
increase the health of your tree and mitigate the effect
that insects or disease have on your trees.
TREE PROTECTION PLANS FOR
CONSTRUCTION PROJECTS
Often trees are damaged during construction,
causing mortality within the next 5-15 years. A tree
protection plan outlines the steps to take to ensure
the trees you are building around remain a safe
and healthy part of your landscape long after the
construction is completed.
SMALL TREE
STRUCTURAL PRUNING
Designed for newly planted shade trees, annual
pruning allows us to keep on top of your trees
structural development in those formative years.
Through very specific structural pruning for the first
five to seven years we can reduce future maintenance
cost and increase the life span of your trees.