Bidder Q&A Template 250000002704 (1).docx

Michigan.gov/MiProcurement

BIDDER QUESTIONS & ANSWERS

RFP#250000002704

Tree and Shrub Control at 8 State Parks Bidders who have questions for the above Solicitation must fill the sections below and attach the document in an email to the Solicitation Manager, as described in the Instruction to Bidders.

Addendum

All Parks Section C

2. Techniques Pgs. 7-9 If contractor would like to include forestry mowing of a zone (or multiple zones) as part of their treatment in conjunction with foliar herbicide treatments and thus span multiple seasons, please provide this intent and proposed timeline in your proposal and it will be considered. Please note that foliar treatment before mowing is preferred in most cases. Including prices for different sequences of treatments is acceptable. Mowing and herbicide treatments should be separated for proper bid comparisons.

All Parks Section C

5. Results Pgs. 12-17 The deadline for work completion in any one treatment area is separate from and need not be the same as the other zones in the same bid line item (treatment zone groups).

All Parks Section C

3. Herbicides 3.d. For all black locust stems that are treated Pg. 10 Section 3.d. Garlon 4 Ultra is specified as the herbicide to be used when performing foliar treatments on black locust. In most zones, milestone should be added or substituted. Venders should put their preferred chemical mix in their proposal.

Section C

1. Park/Species /Treatment Waterloo Recreation Area Pg. 6 Treatment Zone A (site 52) All non-native invasive woody species are added as target species. In addition to those listed in the work statement Siberian elm and upright juniper are known to occur at the site. The boundary of this zone was modified to end at the tree line on the southwest edge. The polygon has been updated on the Web map. The new acreage is 14.25.

Treatment Zone 24-2 All non-native invasive woody species are added as target species. The most common species in this zone are black locust, juniper and autumn olive.

Section C

1. Park/Species /Treatment Island Lake Recreation Area

Pg. 5 All poplar and cherry trees under 20 feet were added as target species in treatment zones F, 8, 10, 14, 15, and 16.

All Parks (Q/A 1-3)

Results

A2: It was explained at each prebid meeting that DNR expects to award some work to be completed by September 30, 2025. Our preferred zones/park were noted at each prebid meeting. It was also noted that DNR has flexibility of season with most parks and zones. Cut stump, frill, basil bark zones were noted at each location and can be done during dormant season. Island Lake numbered zones (follow up to land clearing) were noted as preferred to be treated in the current growing season. Likewise, all locust treatments at Waterloo were also noted that 2025 foliar treatments were preferred.

All Parks (Continue Q/A 1-3)

Results

DNR-PRD would like as much of the foliar work completed by sept 30, 2025, particularly at Waterloo and Island Lake so the next phase of work can be done over the winter. Bidders should submit their preferred strategy and seasonality of work in their bid. If there are cost differences between options you propose due to timing or strategies, they should be made clear in your bid response.

Questions regarding zone boundaries were asked and answered during each meeting.

Algonac State Park Q/A 1-3

Q #

Answer (to be completed by the State)

Section 11

Creating brush piles versus scattering brush shall be as determined in section 3.iii.

Do we have to remove buckthorn biomass from the zones?

No, for foliar sprayed trees will be left standing dead. For cut stump treatments trees will either be left scattered on the ground or piled. See section 11 of the work statement for details on creating brush piles.

Section C

PARK / SPECIES / TREATMENT

Section 2 Techniques

7-9

Is foliar spray preferred for most treatment zones?

Yes. Zones 7 and 31 are most suitable for winter basal bark treatment.

Section 2 Techniques

v. Hand swiping

vi. Foliar Spray

Section 4 Adjuvants

Section 7

7-9

12-13

What are no slop areas?

No slop zones indicate areas of high native plant diversity where collateral damage is not acceptable. In these areas plants should be treated by hand swiping or cone nozzles on handheld/backpack sprayers. Areas within no slop areas that are monocultures of non- native species can be sprayed. Outside of no slop areas collateral damage should be kept to a minimum when most of the vegetation is native (see section 7 of the work statement).

Highland Recreation Area Q/A 1-5

Q #

Answer (to be completed by the State)

Section C 3.Herbicides

1.

Park/Species/Treatment

Can zones 8 and 9 be forestry mowed?

Yes but oak, hickory and fragrant sumac need to be avoided.

1.

Park/Species/Treatment

1.

Park/Species/Treatment

What other species are expected in this zones?

Black locust and bittersweet are the two most common target species. Autumn olive, multiflora rose, honey suckle, and Siberian elm are also likely to occur.

1.

Park/Species/Treatment

Island Lake Recreation Area Q/A 1-3

Q #

Answer (to be completed by the State)

Section D. Description of treatment area DNR PRD Woody Contract hyper link

Zone G is a no-slop area. No-slop zones indicate areas of high native plant diversity where collateral damage is not acceptable. In these areas plants should be treated by hand swiping or cone nozzles on handheld/backpack sprayers. Areas within no slop areas that are monocultures of non- native species can be sprayed. Outside of no slop areas collateral damage should be kept to a minimum when most of the vegetation is native.

2.Techniques

Due to the high density of native plants, much of the zone locust trees where this occurs may be cut stump treated as needed.

Can we use UTV’s within any/all zones?

UTV’s are allowed on designated trails for access and moving equipment/personal to and from zones. Additionally, if doing broad herbicide treatments UTV’s may be used within most zones (i.e. land clearing zones. UTV’s are not allowed in zones G, H or D.

Waterloo Recreation Area Q/A 1-4

Q #

Answer (to be completed by the State)

Section C.

2.Techniques

Can drone spraying be used in zones with dense stands of locust even in tree planted zones?

Yes, drone spraying will be allowed in most zones. In zones where native trees have been planted hand spraying will be required where young trees are identified.

Are lingering black locust trees treatment targets?

Yes, any black locust trees that are lingering (showing any signs of resprouting and/or re-growth) need to be treated as well as resprouts.

Watkins Lake State Park Q/A 1

Q #

Answer (to be completed by the State)

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