04-08-24 CC Reg Mtg Agenda PacketPROPOSED CHANGES TO ITEM 5A
Update Freeman Park Maintenance Plan — DNR Buckthorn Removal Grant
I ask council members to compel staff to make the following changes and
considerations to the maintenance plan:
4. City staff and park volunteers will manually and mechanically remove emerging
buckthorn in the Freeman Park areas during multiple removal operations in 2024
through the end of 2025. Dates of removal efforts will be set at a later date. Any
mechanical removal with equipment will be completed by city staff utilizing rental or
purchased equipment.
5. Based on the effectiveness of removal and seeding efforts in 2024, city staff will bring
to council future removal recommendations, which Gould will include additional
volunteer removal events, contracted removal, or other means of removal. If all other
maintenance efforts prove ineffective in adequately controlling reemerging buckthorn,
the Council may need to consider other proven and typical treatment methods that mmy
'nGlude GhemiGal appliGations-.
'T-Vhen considering the type of FORESTRY MULCHER attachment whether purchased
rented I strongly recommend a head with closer spacing of cutting teeth to
actually cut and chip the debris rather than cut and shred the debris as evident with
the Prairie Restorations remov-1. I
11USTATIM111111720700
Financial Considerations:
City staff time associated with buckthorn management efforts, including volunteer
management and site preparation, would be prioritized over other operations within the
existing budgeted operations. Impacts to other operations, such as building
maintenance, park maintenance, street maintenance, and utility operations will
vccur due to the staff time that will be dedicated to the buckthorn management.
, riciopyr Screening Profile
Triclopyr i a contaminant that has been found in potential drinking water sources in Minnesota. The information
in this
pra ,le was collected for the screening process of the Minnesota Department of Health's Contaminants of
Emerging Concern (CEC) program in March 2012. The chemicals nominated to the CEC program are screened and
ranked based on their toxicity and presence in Minnesota waters. Based on these rankings, some chemicals are
selected for afull review. CEC program staff have not selected triclopyr for ofull review.
Triclopyr Uses
broadleaf weeds, and woody plants. Triclopyr is used
on:
• rice,
• lakes,
* rangeland and forests, and
® turf and residential lawns.
Triclopyr may be harmful to birds and aquatic animals.
it is not expected to build up in the tissues of fish or
other animals.'
Exposure to triclopyr may occur through drinking
contaminated water, eating food that contains
pesticide residues, or by swimming in waters where
Iriclopyr was recently applied. in addition, exposures
can occur for people spray triclopyr.
Potential Health Effects
In anima( studies, high *xposure to tricloDvr for an
extended amount of time affected organ systems,
inc ingthe liver and kidneys:
IVIDIH developed a pesticide rapid assessment of 80
ppb for triclopyr in drinking water.4A person drinking
water containing levels of triclopyr at or below this
level would have little or no risk of health effects.
Based on the screening assessment, a full review of
triclopyr may be possible; however, it is ranked lower
than other nominated CEC chemicals at this time.
References
1. Minnesota Department of Agriculture (MDA). 2013.
2012 Water Quality Monitoring Report.
http://www.mda.state.mn.us/chemicals/`pesticides/`-----/
medialFiles/chemicals/`maace/"2012wqm.ashx
2. M DA. 2012. 2011 Water Quality Monitoring Report.
http:Lwww.mda.state.mn.us/-/media/Files/`chemicals
/wqm/`2011wqmreport. ashx
3. US Environmental Protection Agency. 2005.
Reregistration Eligibility Decision for Triclopyr.
http://www.epa.gov/pesticides/reregistration/`REDs/2
710red.pd
4. Minnesota Department of Health. Report on pesticide
rapid assessments. 2014.
http://www.health.state.mn.us/divs/eh/risyguida
nce/
dwec/ra pass rept. 12df
For more information, contact:
Minnesota Department of Health Environmental Health Division
Contaminants of Emerging Concern Program
hea Ith.leeacy@state.mn.us
November 2015
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43J.0 Sub -Chronic Toxicity of Triclopyr
There is testing of more species for the sub -chronic toxicity studies of triclopyr than for any
chemical discussed in this report, with data reported in the rat, mouse, rabbit, horse, monkey, and
cow. The studies are summarized in Table 4-4 below.
Is's
41
IF I
LVT_QJU_T1 4
were found in one study in rats and one in dogs. Non-specific effects such as decreased bod
weight and food consumption were also found.
In a study of beagle dogs that was the basis of the 2.5 mg/kg-day NOEL for triclopyr, BUN
levels were unaffected, but another study found a statistically significant 57 percent increase in
BUN.' The EPA reclassified the 2.5 mg/kg-day as an adverse effect, and set the NOEL for
effects on the kidney at the next lower dose of 0.5 mg/kg-day. This lowered the provisional
chronic RfD to 0.005 mg/kg. In a 1995 study in dogs, the NOEL based on renal histological
changes was set at 5 mg/kg/day, and the LOEL at 20 mg/kg/day. 54
The EPA determined that risk assessments for short and intermediate term exposure were not 55
required since the NOEL was > 1,000 mg/kg/day in a 21-day dermal toxicity study in rabbits.
A large mammal study of six adult Shetland pony geldings found no adverse effects at the lowest
dose tested (60 mg/kg), but very significant adverse effects at 300 mg/kg, with two out of six
ponies dying as a result of the exposure. This study suggests that larger mammals may be more
sensitive to triclopyr than smaller ones. The author concluded that acute poisoning from proper
use of the herbicide was unlikely.6'
The EPA reports no increased cancer incidence associated with triclopyr exposure based on tw
available carcinogenicity studies, even though statistically significant increases in adrenal gland
tumors (pheochromocytoma) were found in male rats and significant dose related increases in
mammary gland adenocarcinoma were found in female rats and mice (see Table 4-5). There is
unpublished review of the cancer bioassay data on triclopyr submitted to EPA in support of its
56
registration. I
Marin Municipal Water District Vegetation Management Plan DRAF1743127/08
Herbicide Risk Assessment
CORTEVK
agriscience
W W55 MT, IT-T-T WRTM I
QM MrQj"31
to the product label attached to or accompanying the product container.
1. IDENTIFICATION
'dentified uses: End use herbicide product
9330 ZIONSVILLE RD
INDIANAPOLIS IN 46268-1053
UNITED STATES
Customer Information Number: 800-992-5994
customerinfbrmaton@corteva.com
EMERGENCY TELEPHONE
Tjt*r-jk-
2. HAZARDS IDENTIFICATION
Hazard classification
GHS classification in accordance with 29 CFR 1910.1200
Flammable liquids - Category 4
Acute toxicity - Category 4 - Oral
Skin senskiiatiob-category I B
Specific target organ toxicity - single exposure - Category 3
Specific target organ toxicity - repeated exposure - Category 2
Aspiration hazard - Category I
Label elements
Hazard pictograms
4-R!
1114
Product name: GarlonO 4 issue Date: 05/15/2020
Reproductive toxicity
For similar active ingredient(s). Triclopyr. In laboratory animal studies, effects on reproduction have
been seen only at doses that produced significant toxicity to the parent animals. For the solvent(s): In
animal studies, did not interfere with reproduction.
Mutagenicity
For the active ingredient(s): For the solvent(s): In vitro genetic toxicity studies were negative. Animal
genetic toxicity studies were negative.
Toxicity to Above Ground Organisms
oral LD50, Colinus Virginianus (Bobwhite quail), 1350mgtkg bodyweight. X-CsKs
oral LD50, Apis melllfeii',I�ii 'bees) 48 Ho > �N 0"
contact LD50, Apis mellifera (bees), 48 Hour, > 230pg/bee D :5 A
T - organisms oxicity to soil dwelling 23t)
9/14
a plarding clean seed.
If a weed population continues to progress after treatment with this
product, discontinue use of product,• switch to another
management strategy or herbicide with a different mode of action, if
Contact your local extension specialist or certified crop advisor for
additional or •weed
management recommendations for specific use sites.
Common tame
Scientific blame
Life Cycle
Plant Family
acacia, twisted
Acacia tortuose
perennial
Fabaceae
alder
Aldus spp.
perennial
Betulaceae
arrowwood
Viburnum ventanum
perennial
Caprifoliaceae
ash
Fmxlnus spp.
perennial
Oleaceas
aspen
Populus trernuloides
perennial
Salloaceae
bear clover (bearmat)
Chamaebade folioloss
perennial
Fabaceae
beech
Fagus spp.
perennial
Fagaceae
birch
Betula spp.
perennial
Betulaceae
blackberry
Rubus spp.
perennial
Rosaceas
blackbrush
Acacia rigidula
perennial
Fabaceae
blackgum
myssa salvatica
perennial
Comaceae
boxelder(1)
Acernegundo
perennial
Acemoeae
Brazilian pepper
Schinus terebinthifotius
perennial
Anac ardiaceae
buckthorn
Rhamnus spp.
perennial
Rhamnace}ae
cascara
Rhamnus pushians
perennial
Rhamnacese
ceanothus
Ceanothus spp.
perennial
Rhamnaceae
`y
Prunus spp.
perennial
Rosaceae
t....,rry, choke
Prunus virginiana
perennial
Rosaceae
chinquapin
Quercus muhlenbergli
perennial
Fagaceae
cottonwood
Populus deltoides
perennial
Salicaceae
crataegus (hawthorn)
Crateegus spp.
perennial
Rosaceas
creeper, virginla (1)
Parthenocissus quinquefolia
perennial
Vitaceae
dogwood
C.omuS spp.
perennial
Comaceae
douglas-fir
Psuedotsuga menziesr'i
perennial
Pinaosae
elderberry
Sambucus C anadensis
perennial
Caprifoliaceas
elm
Ulmus, spp
perennial
Ulmaceae
elm, winged
Ulmus alata
perennial
Uimaceae
galiberry
flex corlacea
perennial
Aquifoliaceiae
granjeno
Celtis ehrenbergiana
perennial
Uimaceae
guajiilo
Acacia berlandied
perennial
Fabaceae
guava
Psidium guajava
perennial
Myrtaoeae
gorse
Ulex europaeus
perennial
Fabaceae
hazel
Corylus americana
perennial
Betulaceae
hickory
C:arya spp.
perennial
Juglandaceas
hombeam
Carpinus spp.
perennial
Betulaceae
huisache (suppression)
Acacia fameshm
perennial
Fabaceae
ivy, poison
rowdoodendron radicans
perennial
Anac ardlaceae
kudzu
Puerada lobsta
perennial
Fabaceae
locust
Robinia spp.
perennial
Fabaoeae
madrone
Arbutus spp.
perennial
Eftaceae
magnolia, sweetbay
Inoft viginiana
Ya
perennial
Magnollaceae
rr-oles
Acerspp.
perennial
Aceraceae
e, bigleaf (1)
Acermacrophyllum
perennial
Acerac eae
milkweed vine (1)
Asclepias spp.
perennial
Asclepiaceae
mulberry
Monis spp.
perennial
Moraceae
myrtle. wax
Morena cerifem
perennial
Myricaceae
oaks
Querars spp.
perennial
Fagac eae
CORTEVK ETY DATA SHEET
agriscience - DOW AGROSCIENCES LLC
�Jj 1;VZ I
A A -
Product name: GARLONTm 3A Herbicide 15 _WW26/2020
F-FilifDate: 10/26/2020
R CI-rN--S W& encourages you and expects you to read and understand the entire SDS as
there is important information throughout the document. This SDS provides users with information relating to
the protection of human health and safety at the workplace, protection of the environment and supports
emergency response. Product users and applicators should primarily refer to the product label attached to or
accompanying the product container.
""777777777777q
1. IDENTIFICATION
=- -rrmrtrrTWUS! -=M-
1,W
Identified uses: End use herbicide product
4 V4111'
10
Customer Information Number
: 800-992-5994
E-mail address
: customerinformaton@corteva.com
EMERGENCY TELEPHONE
24-Hour Emergency Contact
: ' 800-992-5994
Local Emergency Contact
: 352-323-3500
2. HAZARDS IDENTIFICATION
Hazard classification
Flammable liquids - Category 3
Eye irritation - Category 2A
Specific target organ toxicity - repeated exposure - Category 2
1oFFTV*F1R s s�
A,
1, OW
11111=7 Worewl'MIRMCI
STm Trademarks of Dow AgroSciences, DuPont or Pioneer and their affilfa-t C-d--- 1/13
companies or respective owners.
Product name: GARLONym 3A Herbicide. Issue Date: 10/26/2020
Carcinogenicity
For similar active ingredient(s). Triclopyr. Did not use cancer in laboratory animals.
Teratogenicity
For the active ingredients) : Has been toxic to the fetus in laboratory animals at doses toxic to the mother.
Did not cause birth defects in laboratory animals.
For the minor component(s): Has caused birth defects in lab animals at high doses.
Reproductive toxicity
For similar active ingredient(s). Triclopyr. In laboratory animal studies, effects on reproduction have been
seen only at doses that produced significant toxicity to the parent animals.
Mutagenicity
In vitro genetic toxicity studies were negative. Animal genetic toxicity studies were negative.
Aspiration Hazard
Based on physical properties, not likely to be an aspiration hazard.
12. ECOLOGICAL INFORMATION
Ecotoxicological information appears in this section when such data is available.
Toxicity
4 Acute toxic'
"0 toxic' vWimyki- (rainbow trout), 96 Hour, 400 mg/l, OECD Test Guideline 203 or
= toxic'
yrichus r�r ss
Equivalent
LC50, Lepomis macrochirus (Bluegill sunfish), semi -static test, 96 Hour, > 100 mg/I
APUte toxi * A uatic invertebra —
astern oy er §6 -viedinica), static test, 48 Hour, 56 - 87 mg/l, Method Not
SPL .30ified.
LC50, Daphnia magna (Water flea), static test, 48 Hour, > 1,000 mgA, OECD Test Guideline 202 or
Equivalent
Acute toxicity to algaelaquatic plants
Material is highly toxic to aquatic organisms on an acute basis (LC50/EC50 between 0. 1 and I mg
in the most sensitive species tested). I
ErC50, Pseudokirchnedella subcapitata (green algae), 72 Hour, Growth rate inhibition, 107 mgA,
OECD Test Guideline 201 or Equivalent
ErC50, blue-green alga Anabaena flos-aquae, 72 Hour, Growth inhibition, > 100 mg/l
EC50, Lemna gibba, 7 d, Growth inhibition, > 100 mg/l
Based on information for a similar material:
ErC50, Myriophyllurn spicaturn, 14 d, 0.241 mg/I
STATE OF MINNESOTA
Executive Department
t.r lit r .,W -
W�
M�
Executive Order 19-28- Rescinding Executive Order 16-07
I ilNMEMMI! �i_iff an
that Sustain and Enhance
1, Tim Wa1z, Governor of the State of Minnesota, by the authority vested in me by the
Constitution and applicable statutes, issue the following Executive Order:
Honey bees and a number of native pollinator species have experienced declines in Minnesota
and across the country due to a variety of pressures including habitat loss, pesticides, climate
change, diseases, and parasites. Some of our native bee and butterfly species are now in danger
of extinction, and these declines suggest that other pollinators are also at risk. Because
pollinators enable wild plants and many domestic crops to reproduce, they are essential to the
health of our environment, economy, and way of life.
Our State acknowledges that:
Pollinators sustain and enhance our environment. Insects and the native plants they
pollinate form the foundation of food chains, providing food for birds and other
wildlife. These plants also stabilize soil and prevent erosion, protect water quality,
store carbon, and provide habitat. By conserving the diversity of pollinators, we
promote the diversity of life that makes Minnesota's landscapes resilient.
Pollinators sustain and enhance our economy. Some Minnesota food crops, such as
fruits, vegetables, and herbs, need insects for pollination. Honey bees and native
pollinators contribute millions of dollars to our State's agricultural economy.
Minnesota honey bees are important to the national agricultural economy, because
many bees raised in the state spend their winters pollinating crops in other states.
Pollinators indirectly benefit businesses in other sectors, such as landscaping
companies.
Pollinators sustain and enhance our way of life. Pollinator -dependent Minnesota food
crops and cultural and medicinal plants are enjoyed throughout the State and are
essential for maintaining a healthy diet and practicing cultural traditions. State
symbols like the pink and white lady's-slipper, the Honeycrisp TM apple, and the
monarch buttel fly are part of Minnesota's identity. By pollinating flowering plants,
f The Department of Transportation ("MnDOT") will manage state-owned
transportation properties and rights of way to create, protect, and enhance
pollinator habitat.
WIMMION1
M 01 Fa 41#3 1 1111AWN, "m `1111`111
h. The Minnesota Pollution Control Agency ("MPCA") will manage closed
landfills under its supervision to create, protect, and enhance pollinator
habitat. MPCA will look for additional opportunities to support pollinator
habitat in its agency work.
i. The Minnesota Zoological Garden shall implement its statutory role as an
official pollinator bank for the State of Minnesota to help avert the extinction
of threatened and endangered pollinator species through insurance breeding
populations, reintroduction, research, and education programs.
j. All members of the Interagency Pollinator Protection Team ("IPPT") (see
3.e.) will work together to identify additional opportunities to support
increasing and enhancing pollinator habitat throughout the State.
Minnesotans will use pesticides judic*ously and only when necessary, to reduce
harm to pollinators from pesticide hile retaining economic strength. The
Department of Agriculture C'MDA' will lead implementation of this goal. This
will
includes:
a. Promoting adoption of an integrated pest management ("IPM") approach to
protect pollinators from pesticides in all landscapes.
b. Supporting and promoting research and guidance to improve IPM.
c. Promoting IPM through coordinated outreach and education.
Additionally:
d. MDA will continue to:
Provide educational resources to pesticide users to limit pesticide
impact on pollinators.
ii. Explore innovative approaches to protect endangered and threatenj
pollinator habitat from the effects of pesticides.
iii. Review pesticide active ingredients to address concerns, as
appropriate, to minimize impact on pollinator communities.
iv. Assist pesticide applicators in complying with the pollinator language
on pesticide labels.
13
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cience-based solutions to protect Minnesota's prairies, forests, wetlands,
and agricultural resources
Minnesota Invasive Terrestrial Plants and
Pests Center
01
Home > News > MITPPC blog >
liliq 0 0 -E��E
Meet the researcher: Mike Schuster and the quest
--Lo outstep buckthorn
by Carolyn ernhardt
November 13,2023 ff
cc.
---,Aike Schuster, PhD
buckthorn, to asking how to make it as reasonable as possible for the
largest number of -people and in the greatest diversity of Minnesota
ecosystems."
IIIII , 11 � 11111111111111: 1111111 lI jlli� I I III ��111 IIIIII
A newer initiative Schuster is involved in, funded and initiated in January
2023, seeks to further revolutionize buckthorn management by finding
ways to optimize native plant revegetation, establishing the most effective
chemical -free methods for buckthorn removal, and adapting seed mixes to
plant vegetation that help combat buckthorn while serving and
q,afeguarding essential pollinator communities.We are specifically looking
.I--,--- --- A
at e-e-lio w_,_wb_e_ nd�d
Mf
-vhere that cuttinR can lead to buckthorn mortality without herbicide use,"
says 11 Schuster.
ett AN e,-. e
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