Landscape Maintenance/Ornamental and Turf
(2025) Questions and Answers
IPM
A comprehensive approach that uses biological, cultural, physical, and chemical controls in a
careful. environmentally sound manner.
Economic threshold for pests control
the level that a pest population much reach before it becomes cost-effective to treat them. For
landscapes, the most important factor in pest management is generally appearance.
Natural factors that influence pests
Include climate, natural barriers and enemies, population development ad dynamics and the
availability of shelter, food, and water.
Chemical Control
There are two approaches to to help control pests in landscapes: Preventive involves applying a
pesticide before the problem appears. Reactive or curative treatments occur after you notice the
pest or its damage.
Protecting water sources
Do not use more than the label directs
Mix pesticides 100 feet from surface water or a direct link
Prevent pesticides from back-siphoning into your water source
Factor in irrigation, soil type, and weather forecasts when deciding when and how much
, pesticide to apply.
Use buffer strips around water sources and hard surfaces to reduce pesticide movement.
Pesticide Movement
Drift, runoff and leaching
Drift
The unintended movement of pesticide through the air during or after application.
Particle drift
The movement of droplets through the air during or soon after application
Vapor drift
occurs when pesticides land on the target site but then turn into vapor and move off-target
Runoff
the movement of pesticides across the treated surface, such a lawn. Can contaminate water
through runoff if it lands on concrete or sidewalk.
Leaching
Occurs when chemicals move downward through the soil in water. Leaching is likely in sandy
soils than dry.
Pesticide Residues
The Trace amount of pesticides that remains in the environment after it is applied is known as
residue. All pesticides break down, or degrade after application.
(2025) Questions and Answers
IPM
A comprehensive approach that uses biological, cultural, physical, and chemical controls in a
careful. environmentally sound manner.
Economic threshold for pests control
the level that a pest population much reach before it becomes cost-effective to treat them. For
landscapes, the most important factor in pest management is generally appearance.
Natural factors that influence pests
Include climate, natural barriers and enemies, population development ad dynamics and the
availability of shelter, food, and water.
Chemical Control
There are two approaches to to help control pests in landscapes: Preventive involves applying a
pesticide before the problem appears. Reactive or curative treatments occur after you notice the
pest or its damage.
Protecting water sources
Do not use more than the label directs
Mix pesticides 100 feet from surface water or a direct link
Prevent pesticides from back-siphoning into your water source
Factor in irrigation, soil type, and weather forecasts when deciding when and how much
, pesticide to apply.
Use buffer strips around water sources and hard surfaces to reduce pesticide movement.
Pesticide Movement
Drift, runoff and leaching
Drift
The unintended movement of pesticide through the air during or after application.
Particle drift
The movement of droplets through the air during or soon after application
Vapor drift
occurs when pesticides land on the target site but then turn into vapor and move off-target
Runoff
the movement of pesticides across the treated surface, such a lawn. Can contaminate water
through runoff if it lands on concrete or sidewalk.
Leaching
Occurs when chemicals move downward through the soil in water. Leaching is likely in sandy
soils than dry.
Pesticide Residues
The Trace amount of pesticides that remains in the environment after it is applied is known as
residue. All pesticides break down, or degrade after application.
