To advertise in this section contact Classifieds
Peter Britton on 01952 898516 email:
peter@pitchcare.com
SPARE PARTS
SLITTERS, SPIKES & TINES For a
Free Brochure please contact us at:
P S Marsden (Lawnmower Services) Ltd
TEL: 0115 9614734 FAX:
0115 9615473 Website -
www.protine.co.uk E-mail -
sales@protine.co.uk
High Performance, Standard & Custom-Made Tines SPORTS TURF CONTRACTORS Established 1998 Replacement Tines
Hollow, Solid and Cross - specialising in carbide tipped technology. Verticut and scarifier blades.
Brush sections OEM specification.
Accessories
Backlapping paste, linkage pins, PTOs, specialist grease and bedknives cold rolled for uniform hardness.
All major brands catered for and special requirements met.
VERTI-DRAIN WEIDENMANN JOHN DEERE RYAN
THATCHAWAY TORO GRADEN RANSOMES/JAC
Fast efficient service from our extensive stock.
0800 083 0216 Division of Campey Turf Care Systems Ltd SPORTS TURF CONTRACTORS
GOLF COURSE & SPORTSGROUND CONSTRUCTION
RENOVATION & MAINTENANCE IRRIGATION SYSTEMS LAND DRAINAGE SCHEMES WATER MANAGEMENT SYSTEMS
Tel.01722 716361
www.mjabbott.co.uk
Giant Hogweed
Alan Spedding of the Amenity Forum outlines a new rapid risk assessment system that has been used to roughly classify nearly two thousand non-native plant species
email:
info@agripower.co.uk www.agripower.co.uk
Tel: 01494 866776 the pitch of performance
Football, Hockey Multi-Sports, Cricket, Tennis & Bowls
Design and construction of synthetic and natural sports surfaces and facilities
Tel: 01474 364320
www.activeleisurecontracts.co.uk
• Supplies
• Renovation • Drainage
• Construction 01797 252299
www.bourneamenity.co.uk enquiries@bourneamenity.co.uk
136
nvasive non-native species threaten biodiversity in Britain. Often, the environmental damage they cause is irreversible. The Invasive Non-Natives Species Framework Strategy for Great Britain (The Strategy) calls for a preventative approach to be adopted vis-à-vis invasive species. This may require potentially invasive, non-native plants to be banned from sale, prohibited from being planted in the wild, or eradicated from known sites in the wild. A total of 1,867 non-native plant species (excluding marine species) were named in the 2005 audit of non-native species in England, and thousands more non-native plants are available to buy for use in gardens, landscaping and ponds. Yet, invasive non-native plant species represent only a small proportion of our non-native flora. So, for preventative action to be proportionate, determining which species warrant preventative action and which do not is imperative.
I
Predicting invasiveness cannot be done with complete accuracy, and the potential for currently benign plants to become invasive as the climate changes adds to this challenge. When attempting to determine a plant’s invasive potential, identifying characteristics such as smothering growth-forms and prolific seed production is useful, but not fool-proof, as plants often behave differently when removed from their usual constraints. Evidence of invasive behaviour in natural and semi-natural habitats elsewhere can also be indicative of potential invasiveness but, given the time lags associated with many plant invasion histories, this is not, in itself, robust either. However, used in combination, and
with the added consideration of pathways of introduction and spread within Britain, a broad level of risk can be assigned with some confidence.
The current mechanism for identifying potentially invasive plants in Britain involves a detailed Risk Assessment process that is both time and resource intensive. This renders it inappropriate to apply to large numbers of species. This project devised, trialled and implemented a rapid screening process designed to be applicable to larger numbers of plants. It is based on the Australian Weed Risk Assessment.
twenty-two questions that relate to current status in the UK, evidence of weed status outside of the UK, undesirable (invasive) traits, reproduction, dispersal mechanisms, and persistence attributes.
The results can be used to help prioritise resources by indicating a shortlist of species for which more detailed assessment is considered imperative and/or prudent and a much longer list for which such assessment is deemed currently unnecessary. Moves to restrict species highlighted in this study through a ban on sale are not justifiable without further assessment of the risks they pose. A total of 599 non-native plants of potential invasive concern were assessed, of which:
• 92 are recommended for more detailed risk assessment as a matter of priority (ranked critical)
• 55 are highly recommended for more detailed risk assessment (ranked urgent)
• 72 are recommended for more detailed risk assessment
The screening consists of
Non-n
native plants
IDENTIFYING POTENTIALLY INVASIVE PLANTS
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148