To advertise in this section contact Classifieds
Peter Britton on 01952 898516 email:
peter@pitchcare.com
SPORTS TURF CONTRACTORS SPECIALISTS IN TURF MANAGEMENT
DESIGN • CONSTRUCTION IRRIGATION • MAINTENANCE
Floating Pennywort (ranked moderate risk)
• 380 are identified as requiring no further assessment at present (ranked low risk).
It is recommended that all plants screened are reviewed periodically to take account of emerging evidence and information, changes in climate and new horticultural varieties that become available which may, for example, be more frost-hardy than those currently available. Freshwater and terrestrial plants
were included in the study. In light of the differences in invasion histories typical of freshwater and terrestrial systems, these two groups of species were treated differently. Invasions by non-native species in freshwater habitats tend to take place at a much faster rate than invasions in terrestrial habitats. In comparison, plant invasions in terrestrial habitats are typically quite slow, particularly if they involve woody species and/or highly fragmented habitats. Due to the speed of invasion in
contaminants (‘hitch-hikers’) should also be identified and subject to rapid screening. Of the freshwater plants assessed, 33 were ranked Critical (9%); 26 Urgent (7%); 60 Moderate Risk (16%); and 249 Low Risk (68%). Of the terrestrial plants assessed, 59 were ranked Critical (25.5%); 29 Urgent (12.5%); 12 Moderate Risk (5%); and 131 Low Risk (57%). Comprehensive Risk Assessments have been commissioned by the Non-Native Species Secretariat for 18 of the species screened in this study (at the time of submission): 13 of these were ranked Critical in the present assessment, 1 Urgent, 3 Moderate Risk and 1 Low Risk (giant salvinia Salvinia molesta). It is recommended that the remaining 201 critical, urgent, and moderate risk ranked species should also be subject to full risk assessments.
freshwater habitats, and the fact that many non-native invasive plants currently thought to be causing damage to the biodiversity of aquatic systems are ornamentals that have ‘escaped over the garden wall’, we decided that all commercially available non-native freshwater plants should be included in this study. The final screening was applied
to 368 freshwater plants, over 90% of which are not currently known from the wild in Britain. In future it is recommended that any new aquatic species found to be on sale in Britain should be screened as soon as their existence is discovered. In addition, produce
With the publication of the screening method, additional aquatic species found to be on sale in Britain, and a wider scope of terrestrial plants, can now be screened by third parties. As it requires less than thirty
info@avonmore-associates.co.uk t: 01789 293439
www.avonmore-associates.co.uk
Vertidraining, Hollow Coring, Overseeding, Draining, Gravel Banding, Field Top Maker, Deep Scarifying
Mobile: 07860 259692
Tel: 01284 735105 Email:
peter@buryturfcare.com www.buryturfcare.com
minutes to assess each plant, it is hoped that this screening process can be further developed into a tool that proves useful to land managers and the horticultural trades, as well as policy makers. It is hoped that the Rapid Risk Assessment is developed further if it is to be used more widely by non-native invasive experts, particularly with regard to the weighting of questions and the handling of uncertainty.
Alan Spedding may be contacted by email at:
Alan.spedding@btopenworld.com
Sports Ground Contractors Ltd
SPORTS TURF D CRANE
Construction Golf Courses, Natural/
Artificial Pitches, MUGAs
Renovation Koro Field Top Maker, Fibre Sand Installation, Laser Grading, Seeding
Drainage
Piped Drainage, Sandmaster, Whiz Wheel, Gravel Banding
Tel:01254 878047 Spanish Bluebells
Email:
info@dcranesportsturf.com Website:
www.dcranesportsturf.com
SCONSTRUCTION
San DRAINAGEd Slitting, Gravel Banding V RENOVATION
ports Fields and Golf Courses
erti Draining, Hollow Coring, Scarifying, Koro Field Topmaker, Topdressing, Overseeding, Sand Spreading
Tel: 01772 780545
danvicturfcare@btconnect.com
Mobile: 07768 122577 137
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