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Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
Invasive plant management milton
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Invasive plant management milton

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  1. Invasive plant management<br />Mark Renz<br />Extension Weed Scientist<br />UW-Madison<br />mjrenz@wisc.edu<br />
  2. Pest Management Steps<br />Pest identification = WHAT IS IT?<br />Population size = HOW MUCH?<br />Select appropriate control tactic = WHAT CAN I DO?<br />Monitor and adapt management over time = WHAT CAN I DO BETTER?<br />
  3. What is the goal of management?<br />Compliance with NR40<br />Eradication of populations<br />Improve cover of desirable species<br />Improve ecosystem services land<br />Prevention of invasion<br />
  4.                                                         <br />Understand the biology of weeds!<br />How do they reproduce and spread?<br />Annuals<br />Biennials <br />Creeping Perennials<br />Simple Perennials<br />
  5. Field bindweedresults 1 month after treatment<br />Mowing<br />Sprayed with glyphosate<br />
  6. Annual plant lifecycle<br />
  7. Biennial lifecycle<br />
  8. Perennial lifecycle<br />
  9. Perennial weeds<br />Many types, important to know if<br />Creeping<br />Ex Russian olive, Canada thistle<br />Simple (root crown)<br />Ex Multiflora rose, dandelions<br />
  10. Tools<br />Manipulation of the environment (e.g. Plant competition)<br />Physical management (e.g. mowing)<br />Herbicide<br />Prevention<br />Burning<br />Biological control<br />Grazing<br />TECHNIQUES ARE SPECIES SPECIFIC<br />
  11. Manipulation of the environment<br />Competition/prevention in establishment<br />Desirable plants compete with weeds.<br />Established plants better competitors<br />
  12. Manipulation of the environmentan example<br />Increasing grass cover in fall can reduce germination of weeds<br />Mowed to 8” in October = 75% light interception in spring<br />= few to no weeds germinating<br />
  13. Limit disturbance<br />Most weed species need disturbance to establish<br />Prescribed burn<br />Promotes some competitive species<br />If timed correctly can kill young plants/seedlings<br />Manipulation of the environmentOther things you can do<br />
  14. Mowing<br />Can effectively reduce production of seeds<br />Specific to weed species<br />Annuals and Biennial: <br />reduce population sizes if timed correctly and conducted for multiple years<br />Perennials: <br />typically need additional management to reduce populations<br />
  15. Applications of herbicides<br />Broadcast applications<br />Pre-emergent (PRE)<br />Post-emergent (POST)<br />Directed methods<br />Spot treatment<br />Basal bark applications<br />Cut stump<br />Ropewick<br />Timing specific<br />
  16. Herbicide typesSelectivity<br />Nonselective (Example glyphosate/Roundup)<br />Will injure any plant it contacts<br />Selective (2,4-D)<br />Won’t harm grasses<br />Won’t harm broadleaved species<br />Random selectivity<br />
  17. Herbicide typesPersistence<br /><ul><li>No residual (hours- 1 day)
  18. Example: Roundup (glyphosate)
  19. Short residual (days to weeks)
  20. Example: 2,4-D, Banvel, Garlon, Weedmaster
  21. Long lasting=soil sterilant (months – years)
  22. Example: Tordon (Picloram), Arsenal (Imazapyr)</li></li></ul><li>Herbicide Use Tips<br />Read and follow label directions on all chemicals. <br />Use correct rates<br />Calibrate your sprayer<br />Be sure that chemicals are mixed thoroughly <br />Never spray when it is windy<br />Spray only the targeted area<br />Be aware of properties of herbicides<br />Some volatize when air temperatures are > 80F.<br />Some persist in the soil for extended periods<br />Some are selective herbicides others are not<br />Some may leach into the water table<br />
  23. Prevention<br />Washing equipment to remove soil and plant parts from infested areas<br />Use of weed free inputs:<br />hay and straw<br />free gravel, fill, top soil<br />compost<br />Keep adjacent areas weed free<br />
  24. Cleaning procedures<br />Remove plant parts, seeds, and dirt that may contain plant parts from anything transported off infested site<br />Many types of equipment available:<br />Pressure washers<br />Pressurized air<br />Brush<br />
  25. Biological control of weeds<br />Definition: the use of natural enemies to reduce the damage caused by a pest population <br />GOAL: Reduce the populations (not eliminate)<br />Introduced agents: Not native to area (REGULATED)<br />Natural agents: native to area (NOT REGULATED)<br />
  26. Grazing<br />Can suppress growth of weeds if timed correctly<br />Same timing and effectiveness as mowing except for palatability<br />Palatability is dependant on stage of growth, animal<br />BUT ANIMALS CAN BE TRAINED<br />Promotes grasses to be more competitive <br />
  27. Control information for WI<br />http://fyi.uwex.edu/weedsci/category/invasive-plants-of-wisconsin/<br />FACTSHEETS AVAILABLE<br />Wild parsnip<br />Japanese knotweed<br />Japanese honeysuckle<br />Bush honeysuckle<br />Dame’s rocket<br />Creeping bellflower<br />Buckthorn<br />Garlic mustard <br />Spotted knapweed<br />Black Swallow-wort<br />Teasels<br />Hedge-parsley<br />Canada thistle<br />Perennial pepperweed<br />Poison hemlock<br />Hill mustard<br />OTHER MANAGEMENT INFO<br />Brush management in WI<br />Thistles in pastures and beyond<br />Herbicide effectiveness table<br />
  28. Management Plan Examples<br />
  29. Steps to consider<br />Goal for Target Area.<br />Inventory your target area.<br />What is there?<br />What isn’t there?<br />Decide on realistic goals based on inventory and understanding of vegetation and site characteristics.<br />Set a timeline.<br />Carry out plan.<br />Reassess plan regularly.<br />
  30. Prioritization<br />Think long-term!<br />Use goals/objective to drive management plan<br />DON’T BEGIN AT THE CENTER<br />
  31. Develop a management plan<br /><ul><li>Local park area in blue
  32. Yellow is garlic mustard presence
  33. Goal is to reduce invasive plant cover and prevent spread</li></ul>ROAD<br />
  34. Garlic mustard biology<br />Biennial<br />Seedlings become rosettes<br />Rosettes flower in year 2, then die<br />Plants spread by seed only <br />Equipment<br />Shoes<br />Animals<br />Water<br />
  35. Prioritize each area<br />Small patches in NE manage aggressively to eradicate<br /><ul><li> GOAL: ERADICATION</li></ul>2. Large patch along <br /> roadside manage <br /> efficiently to prevent <br /> further spread<br />Focus on leading edge (perimeter) and edge of road<br />GOAL: Reduce area infested and reduce potential for further spread<br />
  36. Garlic mustard control information<br />Nonchemical: Hand-pulling before flowering is effective<br />
  37. Garlic mustard control information<br />Chemical: Foliar spot spraying in late fall or early spring is best<br />
  38. An example plan for GM<br />Small patches in Northeast<br />Focus on flowering plants<br />Most seedlings die; many rosettes die<br />Monitor and hand-pull for 3 years in spring-summer before plants produce flowers<br />Monitor un-infested areas for new populations <br />Annually manage<br />Hand pull 2nd year plants<br />
  39. An example plan for GM cont.<br />Large patch along roadside <br />Edge of roadside<br />Make sure roadside is mowed before seed production (reduce spread)<br />Perimeter of patch<br />Treat perimeter and working your way into the patch as much as feasible.<br />Spray in spring in years 1 and 3 after seedlings emerge<br />In year 2 hand-pull escaped flowering plants in years don’t treat<br />Update plan after 3 yrs<br />Remap infestation<br />Assess management options <br />
  40. Knowledge of the source of an infestation can be important<br />
  41. Green Bay site was surrounded by garlic mustardLocation floods every year bringing in seed from nearby infestations that results in a uniform carpet of garlic mustard seedlings regardless of treatment<br />
  42. Develop a management plan<br /><ul><li>Local park area in blue
  43. Yellow is buckthorn presence
  44. Goal is to reduce invasive plant cover and prevent spread</li></ul>ROAD<br />
  45. Buckthorn Biology<br />Perennial Woody shrub<br />Male and female plants<br /><ul><li>Plants spread by seed from female plants </li></ul>Birds and other animals<br />equipment<br />
  46. Prioritize<br />Keep un-infested areas free of buckthorn<br />Begin management on south side of road and systematically manage north<br />Target isolated patches first<br />Focus effort on female plants<br />Ignore dense patch unless have resources to manage<br />
  47. Buckthorn control information<br />Nonchemical: removal possible with small plants, larger plants need equipment<br />
  48. Buckthorn Chemical control information<br />Foliar: Effective when plants have “leafed out”<br />Basal Bark: Effective year-round on small plants (<6”)<br />Cut-Stump: Effective year round on all sizes<br />
  49. An example plan for buckthorn<br />Treat female isolated plants nearest the road moving north<br />Small plants: use weed wrench to hand-pull<br />Medium sized plants: Basal bark, cut stump, foliar<br />Large plants: Foliar or cut stump<br />After finish 1, treat isolated male plants as above.<br />Monitor un-infested areas for new populations and manage if they are found<br />Emphasize areas with lots of bird traffic<br />Fenceposts, Hedgerows, powerlines<br />
  50. An example plan for buckthorncontinued<br />Large dense patch in NW<br />Fundraise $$$ so can manage effectively<br />Mow to remove dense canopy and plant material (Winter)<br />Burn plant material (winter-spring)<br />Treat resprouting plants with herbicide<br />Cut stump after mowing<br />Let resprout and foliarly treat<br />Revegetate/restore if desirable plants don’t return<br />Periodically re-visit plan and adjust as needed.<br />
  51. Summary<br />Invasive plant management is species specific.<br />Develop a plan to manage invasive plants that fits with <br />Land management objectives<br />Biology of the species<br />Expertise of the people working on the project<br />Prioritize efforts to maximize effectiveness<br />Consult an expert or factsheets about selecting an appropriate control option<br />No one option will work under all situations, and often an integrated approach works the best.<br />

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