Attach 4 Exhibit 01Required Treatments.pdf

Attach 4 Page 1 of 1

Exhibit 1 Required Treatments for Specific Noxious Weeds

For species known to occur, the required herbicide equivalents and rates are indicated below. Adjuvants recommended by product label must also be used. DyneAmic surfactant or similar active ingredient surfactant is recommended. Marker dye is required for all treatments (32 oz per 100 gallons is a common rate, but follow label guidelines). A minimum of 20 gallons/acre delivery rate is required for all treatments.

For all other noxious weed species that may be located, the COR will determine the appropriate herbicide and rate.

Estimated acres of noxious weeds are shown; more or less of each species may actually be treated. Species are shown in priority order.

Common

Name

Estimated acres

Required Herbicide equivalent Required rate

Number of treatments per year Oxeye daisy 2 ac Aminopyralid 40.6% ai @ pre-bud stage

4 oz/ac 1

Diffuse knapweed

40 ac

20 ac

Aminopyralid 40.6% ai @ rosette to bolting stage

Aminopyralid 40.6% ai @ fall

7 oz/ac

Leafy spurge 3 ac

2 ac

Imazapic 23.6% ai; spring

Imazapic 23.6% ai; late fall

4 oz/ac

8 oz/ac

Bull,plumeless thistle

8 ac Aminopyralid 40.6% ai @ rosette to bolting stage or to fall seedlings and rosettes.

5 oz/ac 1

Cheat grass 20 ac Imazapic 23.6% ai very late fall 2 oz/ac 1

Yellow toadflax

48 ac

Chlorsulfuron 75%ai

@ flowering stage

1.5 oz/ac;

Canada thistle 10 ac

Aminopyralid 40.6% ai; spring @prebud to early bud stage or in fall prior to a killing frost

Chinese clematis

5 ac Metsulfuron-methyl 60%ai @ active growth stage

1 oz/ac 1

Myrtle spurge 5 ac 2,4-D ester 4# ai @ spring or fall regrowth

2 qt/ac 1

Houndstongue 2 ac Metsulfuron-methyl 60%ai @ active growth stage or chlorsulfuron

0.5to 1 oz or

2 oz/ac

Spotted knapweed 10 ac Aminopyralid 40.6% ai; @ rosette to bolting stage

7 oz/ac 1

Dalmatian toadflax

5 ac Chlorsulfuron 75%ai @ pre-bud stage

2-3 oz/ac 1

Bouncingbet 5 ac Chlorsulfuron 75%ai @ pre-bud stage

½ oz/ac 1