Invasive Species Management: Some Particulars
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1 Invasive Species Management: Some Particulars Art Gover Penn State University Wildland Weed Management College of Agricultural Sciences plantscience.psu.edu/wildland
2 Acknowledgement PA DCNR, Bureau of State Parks, Resources Management Section Invasive Species and Habitat Management planning & implementation, operational training, classroom training, weed control research
3 Planning Prescription Implementation Basics
4 Bruner Run Old Mitchell Young Forest Bear Run Sugar Run Jonathan Run Sproul Young Forest Kentuck Campground Great Gorge Trail Tharp Knob The Flats Young Forest Sugarloaf Young Forest Cucumber Run Riparian Meadow Run Riparian Laurel Run Riparian
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9 Bundling Mitigating Factors schedule operations to target many species broad spectrum prescriptions ID Training If we know just enough to prioritize a site, the operation will pick up unaccounted species
10 Management Techniques Cultural Mechanical Biological Chemical
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18 Foliar low volume
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20 hack and squirt
21 basal bark
22 Control Options Treatment foliar hack-squirt stump treatment basal bark preemergent Materials* Rodeo + Garlon 3A, Garlon 3A + 2,4-D Rodeo, Garlon 3A Rodeo, Garlon 3A, Pathfinder II Pathfinder II ProClipse, Pendulum * or equivalent
23 Usual Suspects-Examples annuals biennials herbaceous perennials creeping herbaceous perennials non-suckering woody suckering woody woody vines Japanese stiltgrass mile-a-minute poison hemlock teasel purple loosestrife black swallow-wort Canada thistle Japanese knotweed reed canarygrass exotic shrubs European alder ailanthus Oriental bittersweet
24 Vegetation Growth Forms Life Cycle Activity J F M A M J J A S O N D annual PRE POST biennial-1 POST biennial-2 POST herbaceous perennial woody suckering woody woody vines POST FOLIAR STEM FOLIAR STEM CUT FOLIAR
25 Japanese stiltgrass Microstegium vimineum
26 Japanese hops Humulus japonica
27 mile-a-minute Persicaria perfoliata
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29 Seed bank Annuals Control Target in practical terms, permanent
30 Restoration Effort 0 Control Effort Time Release Maintenance
31 Mile-a-minute - annual forb germination flowering, seed ripening Feb Mar Apr May Jun Jul Aug Sep Oct
32 THIS
33 OR THIS
34 EVEN THIS
35 NOT THIS
36 Mile-a-minute germination flowering, seed ripening Feb Mar Apr May Jun Jul Aug Sep Oct PRE PRE/POST POST Pulling*
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38 Herbicide Approaches Preemergence (PRE) targeting seedling Postemergence (POST) seedling to flowering stage
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40 PRE ProClipse + Plateau
41 Site labeling Selectivity PRE Herbicides limit effect to germinating plants
42 PRE Herbicides Dinitroanalines (DiNA) ALS-inhibitors
43 Dinitroanalines chemical name pendimethalin prodiamine oryzalin product example Pendulum ProClipse Surflan
44 ALS-inhibitors chemical name imazapic sulfometuron product example Plateau Oust XP
45 ALS-inhibitors PRE and POST activity Less selective Foliar and root uptake
46 No treatment 90 DAT
47 pendimethalin applied PRE
48 Oust XP applied PRE
49 PRE herbicides MAM germination MAR APR MAY DiNA DiNA+imazapic
50 Mile-a-minute germination flowering, seed ripening Feb Mar Apr May Jun Jul Aug Sep Oct PRE PRE/POST POST Pulling*
51 Use Mixes More Targets chemical name glyphosate + triclopyr triclopyr + 2,4-D triclopyr + aminopyralid product example Rodeo + Garlon 3A Garlon 3A + 2,4-D Capstone* * Aquatic registration in 2016
52 Mile-a-minute germination flowering, seed ripening Feb Mar Apr May Jun Jul Aug Sep Oct PRE PRE/POST POST Pulling*
53 Japanese knotweed Fallopia japnonicum S.L.
54 Vegetation Growth Forms Life Cycle Activity J F M A M J J A S O N D annual PRE POST biennial-1 POST biennial-2 POST herbaceous perennial woody suckering woody woody vines POST FOLIAR STEM FOLIAR STEM CUT FOLIAR
55 Knotweed Control Target Rhizome system extensive impacted most effectively by systemic herbicides exhaustion through cutting unlikely
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58 Japanese giant plus Bohemian knotweed!
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60 Jenn Greiser, NYCDEP
61 Japanese Knotweed - perennial forb vegetative growth seed ripening Feb Mar Apr May Jun Jul Aug Sep Oct Mowing for herbicide follow-up FOLIAR- glyphosate FOLIAR-following years
62 Herbicides Glyphosate, alone or in mix That s it. imazapyr not better, higher risk triclopyr not effective
63 Knotweed Reduction Approach Two Phases Control Phase Treat Year 1 Follow-up Year 2 Maintenance Phase periodic treatment of remnant knotweed
64 Cutting
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67 WAIT! ( 8 weeks) Top growth Rhizome reserves
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72 Follow-up Continue treatment to 'release' desirable vegetation - or - Install desirable vegetation and continue to manage
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74 tree-of-heaven Ailanthus altissima (root suckering woody)
75 Vegetation Growth Forms Life Cycle Activity J F M A M J J A S O N D annual PRE POST biennial-1 POST biennial-2 POST herbaceous perennial woody suckering woody woody vines POST FOLIAR STEM FOLIAR STEM CUT FOLIAR
76 Ailanthus Control Target Root system extensive most impact through systemic herbicides
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78 Ailanthus - suckering tree seed set flower leaf-out fall color vegetative growth Apr May Jun Jul Aug Sep Oct foliar hack-squirt basal bark
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86 Vegetation Growth Forms Life Cycle Activity J F M A M J J A S O N D annual PRE POST biennial-1 POST biennial-2 POST herbaceous perennial woody suckering woody woody vines POST FOLIAR STEM FOLIAR STEM CUT FOLIAR
Herbicide Selection: What can I use, and where can I use it?
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