CO TURF QS TEST CERTIFICATION
EVALUATION 2026 QUESTIONS WITH
PRACTICE SOLUTION GRADED A+
◉ Transformation (examples) Answer: when a pesticides chemical
structure is altered, usually a desirable fate, because most pesticides
used today become less toxic or nontoxic
examples: photodecomposition, microbial decomposition, chemical
degradation
◉ Leaching Answer: downward movement of pesticides and
nutrients through the soil, carries pesticide and nutrient
contaminants to groundwater resources
◉ Soil organic matter and leaching Answer: has a greater ability to
stop the movement of pesticides
◉ Runoff Answer: occurs when the precipitation rate exceeds the
rate of water infiltration into the soil
◉ Volatilization Answer: when a pesticide changes from a solid or
liquid phase to gaseous phase, this increases with temperature
, ◉ Vapor pressure Answer: point where solids vaporize and liquids
evaporate
◉ Esters Answer: a compound formed by the union of an organic
acid and an organic base, they have a greater tendency to volatize
than amine forms
◉ How to reduce particle drift Answer: - use the lowest practical
pressure
- leave an untreated edge
- angle nozzle toward ground, slightly forward in direction of travel
- use nozzles with largest practical openings
- use low-volatile formulations of chemicals
- spray when wind speed is low
- do not spray during a temperature inversion
- spray when sensitive vegetation is not actively growing
◉ Temperature inversion Answer: warm air traps cooler air near the
earth's surface
◉ Adsorption Answer: pesticides binding or sticking to a surface
(pesticides that adsorb to soil are less likely to leach)
EVALUATION 2026 QUESTIONS WITH
PRACTICE SOLUTION GRADED A+
◉ Transformation (examples) Answer: when a pesticides chemical
structure is altered, usually a desirable fate, because most pesticides
used today become less toxic or nontoxic
examples: photodecomposition, microbial decomposition, chemical
degradation
◉ Leaching Answer: downward movement of pesticides and
nutrients through the soil, carries pesticide and nutrient
contaminants to groundwater resources
◉ Soil organic matter and leaching Answer: has a greater ability to
stop the movement of pesticides
◉ Runoff Answer: occurs when the precipitation rate exceeds the
rate of water infiltration into the soil
◉ Volatilization Answer: when a pesticide changes from a solid or
liquid phase to gaseous phase, this increases with temperature
, ◉ Vapor pressure Answer: point where solids vaporize and liquids
evaporate
◉ Esters Answer: a compound formed by the union of an organic
acid and an organic base, they have a greater tendency to volatize
than amine forms
◉ How to reduce particle drift Answer: - use the lowest practical
pressure
- leave an untreated edge
- angle nozzle toward ground, slightly forward in direction of travel
- use nozzles with largest practical openings
- use low-volatile formulations of chemicals
- spray when wind speed is low
- do not spray during a temperature inversion
- spray when sensitive vegetation is not actively growing
◉ Temperature inversion Answer: warm air traps cooler air near the
earth's surface
◉ Adsorption Answer: pesticides binding or sticking to a surface
(pesticides that adsorb to soil are less likely to leach)
