Vegetation Management and Maintenance Plan - Watsonville ...

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Table 4. Levels of Invasive Weed Infestations and Potential Control Techniques, Watsonville Wetlands Trail System Project Area Common Name Scientific Name Invasive Weed Ranking Infestation Threshold Growth Pattern Potential Control Techniques Fennel English ivy Algerian ivy Bermuda buttercup Kikuyu grass Foeniculum vulgare High Greater than 15 plants or patch greater than 25 sq. ft. Perennial Spread by seeds , vehicles and animals; sprouts from root crown. Management Goal: Reduce number of patches to
Table 4. Levels of Invasive Weed Infestations and Potential Control Techniques, Watsonville Wetlands Trail System Project Area Common Name Scientific Name Invasive Weed Ranking Infestation Threshold Growth Pattern Potential Control Techniques Harding grass Reed canary grass Bristly oxtongue Wild Radish Phalaris aquatica P. arundinacea High Patch greater than 100 sq. ft. Perennial Spreads by seed and spreading underground stems (rhizomes). Limited rhizome spread by Harding grass. Extensive rhizome spread by reed canary grass a. Avoid mechanical cutting of rhizomes and transport of cut pieces to new locations. b. Remove small patches, removing all root pieces and seed heads, bag and dispose. c. Mow close late in season to reduce vigor, repeat several years. Apply herbicide. d. Graze with geese low during the growing season to control. Apply herbicide. e. Solarization for >1 year with 10mm black plastic. f. A critical component to control Harding grass is: Revegetate treated areas with native perennial grasses; spot remove young Harding/canary grass seedlings. Management Goal: Reduce size of existing patches to
Page 1 and 2: Draft Watsonville Wetlands Trail Sy
Page 3 and 4: TABLE OF CONTENTS 1.0 INTRODUCTION
Page 5 and 6: CHAPTER 1.0 INTRODUCTION The Watson
Page 11 and 12: CHAPTER 2.0 INTRODUCTION TO WEEDS W
Page 13 and 14: assigned to each species. This rank
Page 18 and 19: CHAPTER 3.0 INVASIVE WEED MANAGEMEN
Page 20 and 21: General Rules for Grubbing • If t
Page 22 and 23: whipping is critical. However, loca
Page 24 and 25: applications will be needed to cont
Page 26 and 27: Table 4. Levels of Invasive Weed In
Page 30 and 31: Table 4. Levels of Invasive Weed In
Page 32 and 33: 3.1.9 Active Revegetation Within th
Page 34 and 35: In addition, isolated patches of wi
Page 36 and 37: Table 7. Invasive Weed Treatment -
Page 38 and 39: Table 7. Invasive Weed Treatment -
Page 43 and 44: CHAPTER 4.0 RIPARIAN AND WETLAND MI
Page 45 and 46: Table 11. Lower Struve Slough Mitig
Page 47 and 48: Each year’s annual monitoring rep
Page 49 and 50: APPENDIX A Invasive Weeds within th
Page 51 and 52: WILD MUSTARD Brassica ssp. DISTINCT
Page 53 and 54: BULL THISTLE Cirsium vulgare DISTIN
Page 55 and 56: FENNEL Foeniculum vulgare DISTINCTI
Page 57 and 58: HARDING GRASS Phalaris aquatica REE
Page 59 and 60: CURLY DOCK Rumex crispus DISTINCTIV
Page 61 and 62: APPENDIX B Native Plants within the
Page 63 and 64: CALIFORNIA BUCKEYE Aesculus califor
Page 65 and 66: BLACK COTTONWOOD Populus balsamifer
Page 67 and 68: MUGWORT Artemisia douglasiana DISTI
Page 69 and 70: CALIFORNIA BLACKBERRY Rubus ursinus
Page 71 and 72: COMMON RUSH Juncus patens BOG RUSH
Page 73 and 74: APPENDIX C Volunteer Projects Veget
Page 75 and 76: DESCRIPTION OF WORK VOLUNTEER PROJE
Page 77 and 78: DESCRIPTION OF WORK VOLUNTEER PROJE
Page 79 and 80:
DESCRIPTION OF WORK VOLUNTEER PROJE
Page 81 and 82:
APPENDIX D Mitigation Area Maps Veg
Page 83 and 84:
APPENDIX E Bucket Watering System V
Page 85:
Georges' Bucket Watering System For
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