sustainability community breakfast: managing …...2019/04/17 · sustainability community...
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Sustainability Community Breakfast:Managing Invasive Species in the Region
Wednesday, April 17, 2019
Tasha Murray
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• Non-profit society (est. 2006)• Address public inquiries• Public presentations and events• Train government staff and volunteers• Seasonal field crews• Regional resource
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Guides for Priority Invasive Speciesin the Region – Phase 1 Complete
Giant hogweed
Knotweed species
European fire ant
European chafer beetle
Himalayan blackberry
Scotch broom
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Giant hogweed(Heracleum mantegazzianum)
• Noxious weed• Spreads by seeds• Toxic plant• Sap can cause
‘phytophotodermatitis’– Recurrent severe blistering & scarring– Blindness
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Knotweed species
• Four species:– Japanese (Fallopia japonica)– Giant (Fallopia sachalinensis)– Bohemian* (Fallopia x bohemica)– Himalayan (Polygonum polystachyum/Persicaria wallichii)
• Extensive root structure can damage infrastructure and the environment
• Grows almost anywhere• Stem or root fragment 2 mg can regrow• Difficult to control
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European fire ant (Myrmica rubra)• Identity must be confirmed by an expert• Forms dense colonies at or below ground surface• Swarm and sting• Severely compromise the use of outdoor spaces
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European chafer beetle (Amphimallon majale)• Grubs consume roots of unhealthy lawns• Rodents and birds destroy lawns to find and consume grubs• Biological control: nematode Heterorhabditis bacteriophora• Cultural control: lawn alternatives
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Himalayan blackberry(Rubus armeniacus)
• Forms thick, impenetrable thickets• Offers limited food and wildlife shelter• Widespread in southwestern BC• Beware of thorns!
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Scotch broom(Cytisus scoparius)
• Fast growing shrub• Rapidly colonizes disturbed areas• Produces large quantities of long-
lived seeds• Drought and cold tolerant
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Himalayan balsam
Parrot’s feather
English ivy
Yellow archangel
English holly
Other species of concern:Red eared slider turtle
Zebra & quagga musselsPurple loosestrifeAmerican bullfrog
Butterfly bushJapanese beetle
Many, many more…
Guides for Priority Invasive Species – Phase 2 (June 2019)
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You can help…
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Resources
• Report - If you find an invasive plant or animal, report it using your mobile phone
Downloadable from www.reportaweedbc.ca
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Resources
• Play, clean, go - Make sure boots, gear and vehicles are clean before entering and leaving a park or natural area
• Be Plantwise - Plant only non-invasive plants in your garden
• Don’t let it loose - Find an appropriate home for unwanted pets
• Be an invasive species warrior -Volunteer with a local stewardship group
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Resources
Resources• ‘Help Stop the Spread’ brochure• growgreenguide.ca• iscmv.ca• Free Apps
– Report Invasives– Plant ID: PictureThis & PlantNet
• Spread the word, not the weeds -Tell others about the impacts of invasive species
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Upcoming Events:
May is Invasive Species Action Month in BC!bcinvasivesmonth.com
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Upcoming Regional Events:
Ongoing stewardship events throughout the region all year
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Tasha MurrayInvasive Species Council of Metro Vancouver
www.iscmv.ca