Plant Health Care
Synthetic compounds that act like insect hormones
Insect Growth Regulators
Two components of risk
Likelihood and Consequences
The area around a tree where the minimum amount of roots that are biologically essential to the structural stability and health the the tree are located
Critical Root Zone
The ability to maintain ecological, social and economic benefits over time
Sustainability
Four pieces of personal protective equipment (PPE) that are generally required for all tree workers
Head Protection
Eye Protection
Hearing Protection
Leg Protection
Occurs when the pest population rapidly rebounds in the absence of natural enemies, which are slower to repopulate than the pest.
Pest Resurgence
People, property, or activities that could be injured, damaged, or disrupted by a tree failure
Targets
Area defined during site development, where construction activities and access are limited to protect the tree and soil from damage and to sustain tree health and stability
Tree Protection Zone
This type of policy statement should set out policies for identifying, assessing, reporting, and mitigating risks
Risk Management Policy Statement
Body touches energized conductor
Direct Contact
Releasing predators or parasites of an insect pest is an example of ___
Biological Control
The area that the tree or branch is likely to hit if it fails
Target Zone
A proven effective tool for soil aeration and radial trenching, causing much less root injury than mechanical excavation equipment
Air-excavation device
Legal regulations drafted and instituted to protect trees within a given jurisdiction
Tree Ordinances (Bylaws)
Touching an object in contact with an energized conductor
Indirect Contact
Process of observing, identifying, recording and analyzing what happens with plants in the landscape.
Monitoring
The risk remaining after mitigation
Residual Risk
If roots must be severed, this is how it should be done
Cut cleanly with sharp tools and prevented from drying out
A commonly used set of methods for appraising trees was developed by the ___
Council of Tree and Landscape Appraisers
The area within the work zone where the crew expects but branches or logs to be dropped or lowered from above
Drop Zone
Organisms that are frequently encountered in landscapes, predictably cause injury to landscape plants, and may include noxious pests in the area
Key Pests
The degree of risk that is within the owner's/manager's or controlling authority's tolerance, or that which is below ta defined threshold
Acceptable Risk
A measure than can be taken to minimize compaction on a construction site
Spreading a temporary, thick layer of mulch over the site
Detailed plans, requirements, and statements of particular procedures and/or standards used to define and guide are called ___
Specifications
According to many standards the term "shall" denotes this
A Mandatory Requirement