Florida’s Aquatic Plant Management Program …Citra, FL March 3, 2015 Jeff Schardt FL Fish and...
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Transcript of Florida’s Aquatic Plant Management Program …Citra, FL March 3, 2015 Jeff Schardt FL Fish and...
Florida’s Aquatic Plant Management Program
…Citra, FLMarch 3, 2015
Jeff SchardtFL Fish and Wildlife Conservation CommissionInvasive Plant Management Section
FWC Responsibility• 460 public lakes and rivers
- 1.25 million acres• 28 exotic species - (96%)
- 14 invasive - (94%)• 456 authorized management programs
- 69,170 acres / 5 yr avg- $18.1M / 5 yr avg
Program Components• Prevention• Assessment / EDRR• Regulation / Compliance• Management / Control• Research• Vegetation planting• Education & Outreach
Program Components• Prevention• Assessment / EDRR• Regulation / Compliance• Management / Control• Research• Vegetation planting• Education & Outreach
√
Control Options
• Biological 17• Chemical 29• Cultural / Physical 9• Mechanical 4
• Environmental
BiologicalPlant # Biocontrols
Alligatorweed 3Hydrilla 5Water hyacinth 4Water lettuce 2Melaleuca 3
Hydrilla Biocontrols• 4 host-specific insects• Sterile grass carp - 100
Mechanical - History
Mechanical• Non-selective• Slow (2-8 acres/day)• Cost prohibitive• Small areas
Harvest - Shred
Harvest• Harvest• Haul / Dispose• Spread• $10,000 - $20,000 / ac
Cultural / Physical• Hand removal• Diver dredge• Prescribed fire• Drawdown*• Flooding*• Barriers• Dyes• Rakes
Chemical - 15 / 29 / 48 USEPA-FDACS Registered Herbicides
Herbicide #bispyribac 1carfentrazone 1copper 3diquat 1endothall 4 flumioxazin 1fluridone 6glyphosate 1
Herbicide #imazamox 2Imazapyr 1penoxsulam 2peroxide 1topramezone 1triclopyr 22,4-D 2
Herbicide RegistrationProcess for aquatic registration
~ 140 health and environmental tests
~ 8-10 years for full EPA registration
~ $40-60 million for aquatic registration
Herbicide Registration• USEPA registers for aquatic use• FDACS registers for FL use
– envt. agencies comment to FDACS– new compounds - uses / sites
• FWC permits / contracts use in water– funds research
• rates, selectivity, timing, synergy
Research Management• Reproductive methods
– seed / propagule viability• Weakness in life cycle• Susceptibility to available controls
– synergistic effects• Impacts to non-target organisms
1970-2014 $26.7 million Funded 221 projects
Research Program
Mesocosm
Herbicide Research
Ponds
Small lakesLarge scale
Minimize Herbicide Use
• Integrate with other methods• Apply lowest effective rates• Apply when target is most susceptible• Control before problems develop
Management Decisions
• Uses / functions • Plant species present • Impairment• Technology• Current conditions• Budget
Management Dilemma
• Manager perspective – control invasive plants before they
become a problem
• Stakeholder perspective – don’t control plants until they become a problem
Coordination• USACE • Local government• USEPA • Private businesses• USDA • Public / associations• USFWS• USGS• FDEP• FWCC• FDACS• WMDs• Universities
Coordination• USACE • Local government• USEPA • Private businesses• USDA • Public / associations• USFWS• USGS• FDEP• FWCC• FDACS• WMDs• Universities
Outreach
Outreach
Outreach
Outreach
http://plants.ifas.ufl.edu/manage/