Turf Pest Management Final Exam
Questions Complete Latest 2025/2026
with Correct Answers and Rationales
GRADED A+
Questions Correct Answers
Italian rye grass herbicide resistance groups: 1, 2, 5 ,9, 10, 15, 22, 34
Annual bluegrass herbicide group resistance: 1, 2, 3, 5, 9, 10 ,14, 15 ,22, 29, 34
Large crabgrass herbicide group resistance: 1, 2, 5, 9
Goose grass herbicide group resistance: 1, 2, 3, 5, 9, 10, 15, 22
,Yellow nutsedge is Resistant to herbicide
2: ALS inhibitors
group ___
Annual sedge is resistant to herbicide group: 2: ALS inhibitors
Buckhorn plantain is resistant to herbicide
22: PS I inhibitors
group ___
Spotted spurge resistant to herbicide group ___ 2: ALS inhibitors
- Italian rye grass
- goose grass
Weeds with documented resistance to multiple
- annual bluegrass
modes of action:
- large crab grass
- buckhorn plantain
- Goose grass
Annual weeds:
- Japanese stilt grass
- purple nutsedge
- Dallis grass
Perennial weeds:
- bahiagrass
- tropical signal grass
Which MOA is herbicide resistance increasing
ALS inhibitors: group 2
in the most?
- Doveweed
Weeds that thrive in high soil, moisture:
- Japanese stilt grass
, - buckhorn plantain
- goose grass
Weeds that tolerate compacted soil:
- large crab grass
- annual bluegrass
Example of a weed that is commonly mistake
Doveweed
for grass weed:
Buckhorn plantain can grow in drought,
Example of a weed growing in stressful compaction and high pH
conditions: - develops, thicker cuticle, making herbicides
less effective
Doveweed morphological characteristics that
Trichomes
influence herbicide efficacy:
Buckhorn plantain more logical characteristics
Rosette, thick cuticle
that influences herbicide efficacy:
How does annual Bluegrass impact a golf
Produces seed heads
playability?
How does large crab grass impact playability? Not as where tolerant: injury risk
Yellow: grows fast, one tuber at end of each
Differences in yellow and purple nutsedge
rhizome
morphology:
Purple: multiple tubers linked by rhizomes
Difference in herbicide strategy for yellow and Yellow: use a fast acting herbicide
purple nutsedge: Purple: translocating herbicide to kill tubers
, How does burial depth impact spotted spurge More seeds germinate from shallow and soil
see germination? because more light reaches them
What cultural practice may positively impact
Aerification
spotted purge seed germination?
How might you still perform aerification
without impacting spotted spurge seed Air2G2, Solid Tine
germination?
What two cultural practices can limit the
ability of 2, 4-D to dislodge following Irrigation and mowing
application on Sports fields?
Which two pieces of aerification equipment
limit the amount of soil brought to the surface Air2G2, Shockwave
during cultivation?
When controlling weeds using flaming how
1/10 second
long do you need to expose seedlings to flame?
Soil that have higher contents of which two
materials have a greater capacity to adsorb Clay, organic matter
herbicide to soil particles?
Control of with ___ POST herbicides is
enhanced when volumetric water content is > Goose grass
20%
Yellow nut said has documented resistance in
Group 2 - ALS inhibitors
___
Questions Complete Latest 2025/2026
with Correct Answers and Rationales
GRADED A+
Questions Correct Answers
Italian rye grass herbicide resistance groups: 1, 2, 5 ,9, 10, 15, 22, 34
Annual bluegrass herbicide group resistance: 1, 2, 3, 5, 9, 10 ,14, 15 ,22, 29, 34
Large crabgrass herbicide group resistance: 1, 2, 5, 9
Goose grass herbicide group resistance: 1, 2, 3, 5, 9, 10, 15, 22
,Yellow nutsedge is Resistant to herbicide
2: ALS inhibitors
group ___
Annual sedge is resistant to herbicide group: 2: ALS inhibitors
Buckhorn plantain is resistant to herbicide
22: PS I inhibitors
group ___
Spotted spurge resistant to herbicide group ___ 2: ALS inhibitors
- Italian rye grass
- goose grass
Weeds with documented resistance to multiple
- annual bluegrass
modes of action:
- large crab grass
- buckhorn plantain
- Goose grass
Annual weeds:
- Japanese stilt grass
- purple nutsedge
- Dallis grass
Perennial weeds:
- bahiagrass
- tropical signal grass
Which MOA is herbicide resistance increasing
ALS inhibitors: group 2
in the most?
- Doveweed
Weeds that thrive in high soil, moisture:
- Japanese stilt grass
, - buckhorn plantain
- goose grass
Weeds that tolerate compacted soil:
- large crab grass
- annual bluegrass
Example of a weed that is commonly mistake
Doveweed
for grass weed:
Buckhorn plantain can grow in drought,
Example of a weed growing in stressful compaction and high pH
conditions: - develops, thicker cuticle, making herbicides
less effective
Doveweed morphological characteristics that
Trichomes
influence herbicide efficacy:
Buckhorn plantain more logical characteristics
Rosette, thick cuticle
that influences herbicide efficacy:
How does annual Bluegrass impact a golf
Produces seed heads
playability?
How does large crab grass impact playability? Not as where tolerant: injury risk
Yellow: grows fast, one tuber at end of each
Differences in yellow and purple nutsedge
rhizome
morphology:
Purple: multiple tubers linked by rhizomes
Difference in herbicide strategy for yellow and Yellow: use a fast acting herbicide
purple nutsedge: Purple: translocating herbicide to kill tubers
, How does burial depth impact spotted spurge More seeds germinate from shallow and soil
see germination? because more light reaches them
What cultural practice may positively impact
Aerification
spotted purge seed germination?
How might you still perform aerification
without impacting spotted spurge seed Air2G2, Solid Tine
germination?
What two cultural practices can limit the
ability of 2, 4-D to dislodge following Irrigation and mowing
application on Sports fields?
Which two pieces of aerification equipment
limit the amount of soil brought to the surface Air2G2, Shockwave
during cultivation?
When controlling weeds using flaming how
1/10 second
long do you need to expose seedlings to flame?
Soil that have higher contents of which two
materials have a greater capacity to adsorb Clay, organic matter
herbicide to soil particles?
Control of with ___ POST herbicides is
enhanced when volumetric water content is > Goose grass
20%
Yellow nut said has documented resistance in
Group 2 - ALS inhibitors
___
