Weed Management Trials
The Renz Lab conducts weed management field experiments with the goal of improving management outcomes in natural areas, pollinating insect-friendly plantings, pastures, and perennial cropping systems. These experiments study new ways of minimizing injury to desired vegetation, maximizing control of target weeds, reducing the spread of invasive plants, and increasing establishment of desired vegetation.
The results of these experiments are published below. The reports are intended to help farmers, restoration ecologists, landowners, and researchers stay up to date on the latest and most effective herbicides for their land management goals.
Trial ID | Year | Cropping System or Goal | Target Species | Primary Management Methods | Full Report | Executive Summary |
---|---|---|---|---|---|---|
23-11 | 2023 | Invasive Plant Control | Wild Parsnip (Pastinaca sativa) | Herbicides (SiteVue, Milestone, TerraVue, Plateau) | ||
23-10 | 2023 | Establishing Trees | All vegetation | Herbicides (Glyphosate, Eslpanade, Oust) | ||
23-8 | 2023 | Prairie/Grassland/CRP | Native Forbs | Herbicides (Vastlan, Remedy Ultra+Milestone, Durango+Arsenal) | ||
23-7 | 2023 | Prairie/Grassland/CRP | Native Forbs | Herbicides (Vastlan, Remedy Ultra+Milestone, Durango+Arsenal) | ||
23-6 | 2023 | Prairie/Grassland/CRP | Native Forbs | Herbicides (TerraVue, Milestone, SiteVue, Transline) | ||
23-5 | 2023 | Prairie/Grassland/CRP | Native Forbs | Herbicides (TerraVue, Milestone, SiteVue, Transline) | ||
23-4 | 2023 | Prairie/Grassland/CRP | Native Forbs | Herbicides (TerraVue, Milestone, SiteVue, Transline) | ||
23-3 | 2023 | Prairie/Grassland/CRP | Wild Parsnip (Pastinaca sativa) | Herbicide (Glyphosate) | ||
23-2 | 2023 | Prairie/Grassland/CRP | Wild Parsnip (Pastinaca sativa) | Herbicides (SiteVue, Plateau) | ||
23-1 | 2023 | Pasture | Tall fescue(Festuca arundinacea) and Kentucky bluegrass (Poa pratensis) | Herbicides (Panoramic, T-Nex, Pac-Low, Mainline) | ||
22-11 | 2022 | Invasive Plant Control | Bohemian Knotweed (Fallopia x bohemica) | Herbicides in fall (Method 240SL, Milestone, TerraVue) | ||
22-10 | 2022 | Prairie/Grassland/CRP | Ashy Sunflower (Helianthus mollis) | Herbicides (Method 240SL, Milestone, Transline) with Mowing | ||
22-9 | 2022 | Prairie/Grassland/CRP | Ashy Sunflower (Helianthus mollis) | Herbicides in fall (Method 240SL, Milestone, Transline) | ||
22-8 | 2022 | Invasive Plant Control | Box Elder (Acer negundo) | Herbicides (TerraVue alone and mixed with florpyrauxifen, gibberellic acid, imazapyr, metsulfuron or triclopyr) | ||
22-7 | 2022 | Invasive Plant Control | Wild Parsnip (Pastinaca sativa) | Herbicides in fall (florpyrauxifen alone or mixed with 2,4-D, imazapic or metsulfuron) | ||
22-6 | 2022 | Invasive Plant Control | Wild Parsnip (Pastinaca sativa) | Herbicides (florpyrauxifen alone or mixed with 2,4-D or metsulfuron) combined with prescribed burning | ||
22-5 | 2022 | Invasive Plant Control | Wild Parsnip (Pastinaca sativa) | Herbicides (florpyrauxifen alone or mixed with 2,4-D, imazapic or metsulfuron) in prairie restoration | ||
22-4 | 2022 | Pasture | Yellow Foxtail (Setaria pumila) | Herbicides (indaziflam alone or mixed with pendimethalin) | ||
22-3 | 2022 | Invasive Plant Control | Smooth Brome (Bromus inermus) | Herbicides (different herbicide mixes and timings) | ||
22-2 | 2022 | Invasive Plant Control | Wild Parsnip (Pastinaca sativa) | Herbicides (imazapic mixed with flumioxazin, aminopyralid, metsulfuron, sulfentrazone, and chlorsulfuron.) | ||
22-1 | 2022 | Pasture | Smooth Brome (Bromus inermus) and Kentucky bluegrass (Poa pratensis) | Plant Growth Regulator (Imazapic alone or mixed with flumioxazin) | ||
21-17 | 2021 | Pasture | Yellow Foxtail (Setaria pumila) | Herbicides (different rates and timings of indaziflam alone or mixed with pendimethalin) | ||
21-14 | 2021 | Invasive Plant Control | Japanese barberry (Berberis thunbergii) | Herbicides (cut stump, foliar) and flame to cut stump | ||
21-12 | 2021 | Invasive Plant Control | golden creeper / red hailstone (Thladiantha dubia) | Herbicides (summer/fall application of triclopyr or metsulfuron) | ||
21-11 | 2021 | Prairie/Grassland/CRP | Native Forbs | Tolerance to herbicides (florpyrauxifen mixed with 2,4-D, aminopyralid, or triclopyr) | ||
21-10 | 2021 | Pasture | buttercups (Ranunculus spp.) | Herbicides (Dry fertilizer impregnated with DuraCor, Milestone, or GrazonNext HL compared to standard broadcast applications) | ||
21-9 | 2021 | Invasive Plant Control | autumn olive (Elaeagnus umbellata) | Herbicides (florpyrauxfin alone or in combination with other products) | ||
21-8 | 2021 | Invasive Plant Control | bush honeysuckles (Lonicera spp.) | demonstration of woody invasive plant management techniques | Summary | |
21-7 | 2021 | Invasive Plant Control | common buckthorn (Rhamnus cathartica) | demonstration of woody invasive plant management techniques | Summary | |
21-6 | 2021 | Alfalfa | alfalfa | Alfalfa tolerance to Warrant | Summary | |
21-5 | 2021 | Pasture | Timothy (Phleum pratense) | Herbicides (Timothy tolerance to Rezilon) | Summary | |
21-4 | 2021 | Pasture | tall fescue (Schedonorus arundinaceus) | Herbicides (tall fescue tolerance to Rezilon) | Summary | |
21-3 | 2021 | Pasture | annual grasses | Herbicides (red clover plantback interval after Rezilon application) | Summary | |
21-2 | 2021 | Invasive Plant Control | wild parsnip (Pastinaca sativa) | Herbicides (post-emergent) | Summary | |
21-1 | 2021 | Invasive Plant Control | crown vetch (Coronilla varia) | Herbicides (aminopyralid formulations) | Summary | |
20-15 | 2020 | Pasture | burdock (Arctium minus) | Herbicides (florpyrauxifen and 2,4-D alone or in combination) and clover tolerance | ||
20-14 | 2020 | Interseeded Corn-Alfalfa | Plant Growth Regulator (Kudos), Fungicide (Priaxor), Insecticide (Warrior II) | |||
20-13 | 2020 | Interseeded Corn-Alfalfa | Plant Growth Regulator (Kudos), Fungicide (Priaxor), Insecticide (Warrior II) | |||
20-12 | 2020 | Invasive Plant Control | wild parsnip (Pastinaca sativa) | Herbicides (Loyant, Elevore) | Summary | |
20-11 | 2020 | Pasture | wild carrot (Daucus carota) | Herbicides (florpyrauxifen as compared to recommended standards) | Summary | |
20-10 | 2020 | Pasture | wild carrot (Daucus carota) | Herbicides (florpyrauxifen as compared to recommended standards) | Summary | |
20-9 | 2020 | Prairie/Grassland/CRP | Native Forbs | Tolerance to herbicides (Milestone, TerraVue, DuraCor) | Summary | |
20-8 | 2020 | Prairie/Grassland/CRP | Native Forbs | Tolerance to herbicides (ProClova, GF-4574) | Summary | |
20-7 | 2020 | Invasive Plant Control | crown vetch (Coronilla varia) | Herbicides (Tordon, Loyant, Elevore, Transline) | Summary | |
20-6 | 2020 | Invasive Plant Control | Canada thistle (Cirsium arvense) | Herbicides (Elevore or Loyant combined with Remedy Ultra, Vista XRT, or Transline) | Summary | |
20-5 | 2020 | Pasture | burdock sp. (Arctium sp.) | Herbicides (florpyrauxifen as compared to recommended standards) | Summary | |
20-4 | 2020 | Invasive Plant Control | common buckthorn (Rhamnus cathartica) | Herbicides (Milestone as compared to recommended standards) | Summary | |
20-3 | 2020 | Invasive Plant Control | autumn olive (Elaeagnus umbellata) | Herbicides (TerraVue as compared to recommended standards) | Summary | |
20-2 | 2020 | Invasive Plant Control | burning bush (Euonymus alatus) | Herbicides (Method as compared to recommended standards) | Summary | |
20-1 | 2020 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (Esplanade, Method) | Summary | |
19-17 | 2019 | Interseeded Corn-Alfalfa | - | Plant Growth Regulator (Kudos), Fungicide (Priaxor), Insecticide (Warrior II) | ||
19-16 | 2019 | Interseeded Corn-Alfalfa | - | Plant Growth Regulator (Kudos), Fungicide (Priaxor), Insecticide (Warrior II) | ||
19-14 | 2019 | Prairie/Grassland/CRP | Timothy (Phleum pratense) | Herbicides (bicyclopyrone, Moxy 2, Starane Ultra, Huskie) | Summary | |
19-13 | 2019 | Invasive Plant Control | phragmites (Phragmites australis) | Herbicides (fluazifop, glyphosate) | Summary | |
19-12 | 2019 | Invasive Plant Control | Reed manna grass (Glyceria maxima) | Herbicides (fluazifop, glyphosate) | Summary | |
19-11S | 2019 | Invasive Plant Control | golden creeper / red hailstone (Thladiantha dubia) | Herbicides in summer (FIELD) (glyphosate, Arsenal, Escort, Garlon 4, Method, Milestone) | Summary | |
19-11F | 2019 | Invasive Plant Control | golden creeper / red hailstone (Thladiantha dubia) | Herbicides in fall (FIELD) (glyphosate, Arsenal, Escort, Garlon 4, Method, Milestone) | Summary | |
19-10 | 2019 | Invasive Plant Control | golden creeper / red hailstone (Thladiantha dubia) | Herbicides (GREENHOUSE) (glyphosate, Arsenal, Escort) | ||
19-9 | 2019 | Alfalfa | Alfalfa (medicago sativa) | Plant Growth Regulator (Kudos) | ||
19-4 | 2019 | Invasive Plant Control | common buckthorn (Rhamnus cathartica) | Herbicides (Method as compared to recommended standards) | Summary | |
19-3 | 2019 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (Esplanade, Method) | Summary | |
19-1 | 2019 | Invasive Plant Control | garlic mustard (Alliaria petiolata) | Herbicides (Esplanade, glyphosate) | ||
18-17 | 2018 | Interseeded Corn-Alfalfa | - | Plant Growth Regulator (Kudos), Fungicide (Priaxor), Insecticide (Warrior II) | ||
18-16 | 2018 | Interseeded Corn-Alfalfa | - | Plant Growth Regulator (Kudos), Fungicide (Priaxor) | ||
18-15 | 2018 | Interseeded Corn-Alfalfa | - | Plant Growth Regulator (Kudos) | ||
18-14 | 2018 | Invasive Plant Control | phragmites (Phragmites australis) | Herbicides (fluazifop-p-butyl) | ||
18-12 | 2018 | Alfalfa | Winter Annual Weeds | Herbicides (Warrant as compared to recommended standards) | ||
18-11 | 2018 | Prairie/Grassland/CRP | Annual Weeds | Cover Cropping, Mowing, Herbicides (Journey, Milestone, glyphosate, Esplanade, Prowl H2O) | ||
18-9 | 2018 | Prairie/Grassland/CRP | Annual Weeds | Cover Cropping, Mowing, Herbicides (Journey, Milestone, glyphosate, Esplanade, Prowl H2O) | ||
18-7 | 2018 | Prairie/Grassland/CRP | Native Forbs | Herbicides (Milestone and TerraVue) | ||
18-5 | 2018 | Invasive Plant Control | wild parsnip (Pastinaca sativa) | Herbicides (florpyrauxifen as compared to recommended standards) | ||
18-4 | 2018 | Pasture | perennial weeds | Dry fertilizer impregnated with herbicides (aminopyalid + florpyrauxifen, GrazonNext, Chaparral) | ||
18-3 | 2018 | Invasive Plant Control | Japanese barberry (Berberis thunbergii) | Herbicides (Method as compared to recommended standards) | Summary | |
18-2 | 2018 | Invasive Plant Control | crown vetch (Coronilla varia) | Herbicides (Method as compared to recommended standards) | ||
18-1 | 2018 | Invasive Plant Control | Japanese barberry (Berberis thunbergii) | Herbicide (Maleic Hydrazide) | ||
17-12 | 2017 | Alfalfa | Annual Weeds | Herbicides (glyphosate, Warrant) | ||
17-10 | 2017 | Prairie/Grassland/CRP | Bare Ground | Herbicides (glyphosate, Esplanade, indaziflam + rimsulfuron) | ||
17-9 | 2017 | Invasive Plant Control | garden valerian (Valeriana officinalis) | Herbicides (2,4-D, Clarity, Escort, Remedy, Transline, Chaparral, Milestone) | ||
17-8 | 2017 | Pasture | wild carrot (Daucus carota) | Herbicides (aminopyralid, XDE-848 BE, GrazonNext HL, Chaparral) | ||
17-7 | 2017 | Pasture | wild carrot (Daucus carota) | Herbicides (aminopyralid, XDE-848 BE, GrazonNext HL, Chaparral) | ||
17-6 | 2017 | Pasture | wild carrot (Daucus carota), red clover (Trifolium pratense) | Herbicides (ProClova / GF-3731) | ||
17-5 | 2017 | Invasive Plant Control | bush honeysuckles (Lonicera sp.), buckthorn (Rhamnus sp.) | Herbicides (triclopyr) Goat Grazing | ||
17-4 | 2017 | Invasive Plant Control | common tansy (Tanacetum vulgare) | Herbicides (Method as compared to recommended standards) | ||
17-3 | 2017 | Invasive Plant Control | wild parsnip (Pastinaca sativa) | Herbicides (Method as compared to recommended standards) | ||
17-2 | 2017 | Invasive Plant Control | autumn olive (Elaeagnus umbellata) | Herbicides (Method as compared to recommended standards) | ||
17-1 | 2017 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (Esplanade, indaziflam + rimsulfuron, glyphosate, CleanTraxx, Prowl H2O) | ||
16-8 | 2016 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (Dual Magnum, Atrazine, Weedmaster) | ||
16-7 | 2016 | Alfalfa | Annual and Perennial Weeds | Herbicides (Warrant, glyphosate, Raptor, Select Max) | ||
16-6 | 2016 | Alfalfa | Annual Weeds | Seeding Rates, Herbicide (Glyphosate) | ||
16-5 | 2016 | Interseeded Corn-Alfalfa | Annual Weeds | Herbicides (Warrant, Dual Magnum, Buctril) | ||
16-4 | 2016 | Interseeded Corn-Alfalfa | Annual Weeds | Herbicides (Warrant, Dual Magnum, Buctril) | ||
16-3 | 2016 | Alfalfa | Annual Weeds | Herbicides (Alion as compared to recommended standards) | ||
16-2 | 2016 | Invasive Plant Control | wild parsnip (Pastinaca sativa) | Herbicides (Method as compared to recommended standards) | ||
16-1 | 2016 | Invasive Plant Control | honeysuckle (Lonicera sp.) | Herbicides (Method as compared to recommended standards) | ||
15-3 | 2015 | Pasture | whorled milkweed (Asclepias verticillata) | Herbicides (Pasturegard HL, Weedmaster) | ||
15-2 | 2015 | Invasive Plant Control | bohemian knotweed (Fallopia X bohemica) | Herbicide (Milestone) | ||
15-1 | 2015 | Pasture | Invasive Shrubs (Multiflora Rose, Bush Honeysuckle, Prickly Ash) | Herbicides (Crossbow, Pasturegard, Forefront, Remedy, Chaparral) | ||
14-2 | 2014 | Invasive Plant Control | Japanese knotweed (Fallopia japonica) | Herbicide (Milestone) | ||
14-1 | 2014 | Invasive Plant Control | Japanese knotweed (Fallopia japonica) | Herbicide (Milestone) | ||
13-1 | 2013 | Prairie/Grassland/CRP | Native Forbs | Herbicides (aminopyralid, clopyralid) | ||
12-11 | 2012 | Invasive Plant Control | leafy spurge (Euphorbia esula) | Herbicides (Perspective, DPX-MAT28, Overdrive, Tordon) | ||
12-10 | 2012 | Invasive Plant Control | tall fescue (Lolium arundinaceum) | Herbicides (Opensight, Milestone, Powerflex) | ||
12-9 | 2012 | Invasive Plant Control | sweet clover (Melilotus officinalis) | Herbicides (Amclo-GF-2791, Milestone, Transline) | ||
12-8 | 2012 | Invasive Plant Control | Canada thistle (Cirsium arvense) | Herbicides (Milestone, Transline, Telar, Opensight, Perspective) | ||
12-7 | 2012 | Invasive Plant Control | spotted knapweed (Centaurea biebersteinii) | Herbicides (Perspective, DPX-MAT28, Milestone, 2, 4-D-Dimethylamine salt) | ||
12-6 | 2012 | Invasive Plant Control | Canada thistle (Cirsium arvense) | Herbicides (DPX-MAT28, Milestone) | ||
12-5 | 2012 | Alfalfa | Annual Weeds | Herbicides (Warrant, Weathermax, Select Max, Raptor) | ||
12-4 | 2012 | Alfalfa | Annual and Perennial Weeds | Herbicides (glyphosate, Chateau, Raptor, Pursuit, Prowl, Warrant) | ||
12-3 | 2012 | Alfalfa | Annual Weeds | Herbicides (Warrant, Weathermax, Select Max, Raptor) | ||
12-2 | 2012 | Invasive Plant Control | Japanese knotweed (Fallopia japonica) | Herbicides (Milestone as compared to recommended standards) | ||
12-1 | 2012 | Interseeded Corn-Alfalfa | Herbicides (Apogee) | |||
11-3 | 2010 | Pasture | n/a | Herbicides (Ryzup) | ||
11-1 | 2011 | Invasive Plant Control | birdsfoot trefoil (Lotus corniculatus) | Herbicides (AMCLO-GF-2791, Milestone, Transline) | ||
09-4 | 2009 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (glyphosate, Journey, Drive, Accent) | ||
09-2 | 2009 | Prairie/Grassland/CRP | Annual and Perennial Weeds | Herbicides (glyphosate, Journey, Drive, Accent) | ||
09-1 | 2009 | Prairie/Grassland/CRP | Annual Weeds | Herbicides (Journey as compared to recommended standards) | ||