Poa Control Continued

Question 1

What is the most important chemical approach to controlling Poa annua?

Answer 1

PGR’s

Question 2

“expliot the growth factor”

Know how to draw the fucking graph…

Answer 2

Go ahead, draw that bitch…..

Question 3

FInale and Roundup are examples of what kind of Herbicide?

How would you use them to control poa?

Answer 3

• Non-selective herbicide
• Spot treatment

Question 4

Are Post Emergent herbicides okay to use on putting greens to control poa?

Answer 4

Helllls No

Question 5

When spot treating Poa with a non-selective herbicide….what should you add to the chemical?

Answer 5

Dye/tracker

Question 6

What are the best options for controlling Poa annue on greens?

Answer 6

• Improve the growing environment (good drainage/full sun)
• collect cliipings when seedheads are present
• Spoon feed N in the summer
• Avoid winter or dormant applications of Nitrogen where Poa is problematic
• Restrict irrigation in the summer
• Aerify in late summer, before Poa germinates
• Vigilant plugging or spot treatment of a non-selective herbicide
• Use PGR’s - Paclobutrizol or Flurprimidol

Question 7

What are the best options forcontrolling Poa on Tees, Fairways and Greens Surrounds?

Answer 7

• Improve growing conditions ie. sunlight & improve drainage
• Use tri-plex mowers, not heavy ganf units
• collect clippings when Poa seedheads are present
• Restrict irrigation in the summer
• Core in late summer, before Poa seed germination
• Avoid winter or dormant N applications
• Herbicides and PGR’s

Question 8

What are some benefits of using PGR’s on the golf course?

Answer 8

• – Reduce clippings and mowing demands
• – Improve and maintain consistent green speed
• – Improve density and ball lie
• – Management of summer stress (esp. TE)
• – May increase disease control residual of fungicides
• – Increase carbohydrate reserves
• – Suppress Poa annua Seedheads and/or Growth/Competitiveness

Question 9

What is Embark T&O (Mefluidide) used for?

Answer 9

• Poa annua seedhead suppression

Question 10

What are Trimmit or Turf Enhancer (Paclobutrizol) used for?

Answer 10

ABG growth suppression

Question 11

What is Cutless (flurprimidol) used for?

Answer 11

ABG growth suppression

Question 12

What is Primo MAXX (Trinexapac-ethyl) used for?

Answer 12

• Improves the ABG ability to tolerate summer stress

Question 13

What is Proxy (Ethephon) used for?

Answer 13

ABG seedhead suppression

Question 14

When do you want to apply Mefluidide (Embark) ?

Answer 14

As first seedheads enter “boot stage” in early spring

Question 15

When do you want to apply Proxy?

What is a side effect of Proxy on Bentgrass?

Answer 15

• When the seed enters “boot stage” in early spring.
• Side Effect: 2 or more applications can cause stem elongation and scalping of bentgrass

Question 17

Besides herbicides…what else has pre-emergent activity on ABG?

Answer 17

paclobutrizol and flurprimidol (trimmet and cutless)

Question 18

When Poa is growing more rapidly than bentgrass in the Spring and Fall…what type of rates and applications should you put down when using Trimmet or cutless?

Answer 18

7-14 day intervals using lower rates

Question 19

Multiople fall applications of _________ PGR will provide pre-emergence Poa annuacontrol?

Answer 19

Paclobutrizol or Flurprimidol (Trimmit and cutless)

Question 20

True or False

You must water Trimmit and Cutless in after application?

Answer 20

True.

The product is taken up through the roots

Question 21

What are Are The BEST Options For Preemergence Poa Control On Greens?

Answer 21

Trimmit or Cutless

(Paclobutrizol or Flurprimidol)

Question 22

When using a PreEmergent herbicide to control Poa in Roughs….what is the most Highly effective product to use?

Answer 22

Barricade

Question 23

_____________ Gives Best Combination of ABG and Broadleaf Winter Annual Control.

Answer 23

Pendulum (Pendimethalin)

Question 24

When do you apply a pre emergent herbicide in the rough to control Poa annua?

Answer 24

Following a significant rain event in early september