INVASIVE NON-NATIVE SPECIES REPORT and CONTROL STRATEGY for Riparian plants YORKSHIRE DERWENT CATCHMENT November 2019 Original Author: Matt Cross 2017 Revised by Vanessa Barlow 2019 Yorkshire Wildlife Trust 1 St. George’s Place York YO24 1GN Tel: 01904 659570 Email: [email protected] www.ywt.org.uk Yorkshire Wildlife Trust is a company limited by guarantee, registered in England Number 409650 Registered Charity Number 210807 ©Yorkshire Wildlife Trust 2019 All rights reserved INNS Report and Control Strategy Table of Contents Overview of work 2019/20 .................................................................................................................... 5 1 Introduction ................................................................................................................................ 5 1.1 The Yorkshire Derwent Catchment ................................................................................................. 5 1.2 River Derwent SSSI .......................................................................................................................... 5 1.3 Invasive Non-Native Species (INNS) ................................................................................................ 6 1.3.1 INNS Legislation ........................................................................................................................ 7 2 INNS status in the Yorkshire Derwent Catchment ......................................................................... 9 3 Determining Priorities ............................................................................................................... 16 4 Aims and Objectives .................................................................................................................. 18 4.1 Treatment Objectives .................................................................................................................... 18 4.2 Surveying Objectives ..................................................................................................................... 18 4.3 Volunteer Involvement .................................................................................................................. 19 5 Data Collection .......................................................................................................................... 20 6 Preventing Further Infection ...................................................................................................... 21 7 Sub-Catchment Descriptions in 2020 and Recommendations ...................................................... 22 Lower Derwent .................................................................................................................................... 23 Bielby Beck ...................................................................................................................................... 23 Birk Lane Drain ................................................................................................................................ 24 Bishop Wilton Beck .......................................................................................................................... 25 Blackfoss Beck ................................................................................................................................. 26 Fleet Dike ......................................................................................................................................... 27 Gowthorpe Beck .............................................................................................................................. 28 Lowmoor Drain ................................................................................................................................ 29 Pocklington Beck from Bielby Beck to River Derwent ..................................................................... 30 Pocklington Beck from source to Bielby Beck ................................................................................. 31 River Derwent from Elvington Beck to River Ouse .......................................................................... 32 Middle Derwent .................................................................................................................................. 33 Barlam Beck / Skirpen Beck ............................................................................................................. 33 Cram Beck ........................................................................................................................................ 34 Menethorpe Beck ............................................................................................................................ 35 River Derwent from Kirkham to Elvington Beck .............................................................................. 36 River Derwent from River Rye to Kirkham ...................................................................................... 37 Settrington Beck .............................................................................................................................. 38 Spital Beck / Bulmer Beck / Ings Beck ............................................................................................. 39 © Yorkshire Wildlife Trust 2019 2 INNS Report and Control Strategy Upper Derwent .................................................................................................................................... 40 Black Beck / Crosscliffe Beck / Grain Beck ....................................................................................... 40 Brompton Beck ................................................................................................................................ 41 Burniston Beck / Sea Cut / Scalby Beck to North Sea ...................................................................... 42 Eastfield Drain & Scarborough ........................................................................................................ 43 Ebberston Beck ................................................................................................................................ 44 Lowdales Beck ................................................................................................................................. 45 Lownorth Beck ................................................................................................................................. 46 River Derwent from Black Beck to River Rye ................................................................................... 47 River Derwent from source to Black Beck ....................................................................................... 48 River Hertford & Filey ...................................................................................................................... 49 Ruston Beck ..................................................................................................................................... 50 Scampston Beck ............................................................................................................................... 51 Seamer Drain ................................................................................................................................... 52 Sherburn Beck ................................................................................................................................. 53 The Syme ......................................................................................................................................... 54 Thornton Beck / Dalby Beck / Staindale Beck ................................................................................. 55 Troutsdale Beck ............................................................................................................................... 56 Rye ................................................................................................................................................... 57 Bogmire Gill ..................................................................................................................................... 57 Bonfield Gill ..................................................................................................................................... 58 Borough Beck................................................................................................................................... 59 Catter Beck / Hutton Beck ............................................................................................................... 60 Costa Beck from Pickering Beck to River Rye .................................................................................. 61 Costa Beck from source to Pickering Beck ...................................................................................... 62 Gundale Beck ................................................................................................................................... 63 Hartoft Beck ..................................................................................................................................... 64 Hodge Beck ...................................................................................................................................... 65 Holbeck ............................................................................................................................................ 66 Ledge Beck ......................................................................................................................................