MN Pesticide Applicators Cat J | 2025/2026 UPDATE |
QUESTIONS WITH DETAILED CORRECT ANSWERS
GRADED A+ ASSURED SUCCESS .
Describe how the biennial plant life cycle affects an herbicide
treatment plan - ANSWER-Biennial plants are plants that
generally need two growing seasons to complete their life cycle.
First season is when the seed germinates and produce only
vegetative growth (Rosette).
Second season the plant will produce flowers and fruits (bolting)
then die.
Name factors that influence application rate - ANSWER-
Speed, Nozzles,
Pressure,
Concentration
Explain the relationship between equipment speed and
application rate - ANSWER-The faster you walk or drive the
lower the application rate, calibration should be based on the
speed at which you operate the equipment. Practice is needed.
Explain the relationship between speed and pressure - ANSWER-
The higher the
,pressure the more you will apply, just as with the speed the
faster you go the
lower the rate of
application.
High pressure = Higher
Speed
Low Pressure= Low Speed
List the steps to calibrate a sprayer - ANSWER-Calculate the
area you are spraying
Check nozzles for uniform flow rate
Check nozzles for uniform pattern
Calculate spray rate
List four weather conditions that affect the herbicide treatment
schedule - ANSWER-Temperature- too cold or hot then the the
pesticide may ne ineffective Precipitation- can cause drift to
happen or help allow solid to penetrate the soil. Wind
Drought
Volatilization
Explain how the treatment area size and shape will influence
your choice of application equipment - ANSWER-Application
equipment and methods are available that are suitable for
treating any size site.
, List three common reasons for pesticide failure - ANSWER-Drift
out of target area
Volatilization of pesticide
Rain following application
Applying at wrong time in plant life cycle
Using the wrong equipment for the target area
Applying to wrong area of plant
list four common herbicide application methods - ANSWER-
Broadcast Ground
Broadcast Aerial
Spot spray/direct spray
Rope-wick Wiper
Basal-bark treatment
Cut stump
Hack and squirt
Girdling
Identify where (on the stump) to apply herbicide for a cut-stump
treatment (indicate four options with either a drawing or
explanation). - ANSWERTo apply chemical, apply to just inside
the bark around the entire circumference, it is transferred to the
roots.
For stumps up to 3inches
QUESTIONS WITH DETAILED CORRECT ANSWERS
GRADED A+ ASSURED SUCCESS .
Describe how the biennial plant life cycle affects an herbicide
treatment plan - ANSWER-Biennial plants are plants that
generally need two growing seasons to complete their life cycle.
First season is when the seed germinates and produce only
vegetative growth (Rosette).
Second season the plant will produce flowers and fruits (bolting)
then die.
Name factors that influence application rate - ANSWER-
Speed, Nozzles,
Pressure,
Concentration
Explain the relationship between equipment speed and
application rate - ANSWER-The faster you walk or drive the
lower the application rate, calibration should be based on the
speed at which you operate the equipment. Practice is needed.
Explain the relationship between speed and pressure - ANSWER-
The higher the
,pressure the more you will apply, just as with the speed the
faster you go the
lower the rate of
application.
High pressure = Higher
Speed
Low Pressure= Low Speed
List the steps to calibrate a sprayer - ANSWER-Calculate the
area you are spraying
Check nozzles for uniform flow rate
Check nozzles for uniform pattern
Calculate spray rate
List four weather conditions that affect the herbicide treatment
schedule - ANSWER-Temperature- too cold or hot then the the
pesticide may ne ineffective Precipitation- can cause drift to
happen or help allow solid to penetrate the soil. Wind
Drought
Volatilization
Explain how the treatment area size and shape will influence
your choice of application equipment - ANSWER-Application
equipment and methods are available that are suitable for
treating any size site.
, List three common reasons for pesticide failure - ANSWER-Drift
out of target area
Volatilization of pesticide
Rain following application
Applying at wrong time in plant life cycle
Using the wrong equipment for the target area
Applying to wrong area of plant
list four common herbicide application methods - ANSWER-
Broadcast Ground
Broadcast Aerial
Spot spray/direct spray
Rope-wick Wiper
Basal-bark treatment
Cut stump
Hack and squirt
Girdling
Identify where (on the stump) to apply herbicide for a cut-stump
treatment (indicate four options with either a drawing or
explanation). - ANSWERTo apply chemical, apply to just inside
the bark around the entire circumference, it is transferred to the
roots.
For stumps up to 3inches
