Erysiphe trifolii var. trifolii

Erysiphe trifolii var. trifolii - Netelia cristata

Click here to support NatureSpot by making a donation - small or large - your gift is very much appreciated. Thank you.
Alternative names
Microsphaera trifolii
Description

Erysiphe trifolii var. trifolii appears as a powdery mildew on clover species.

Identification difficulty
Habitat

Where the host species occur.

When to see it

When the host species are in leaf.

VC55 Status

Status in Leicestershire and Rutland not known.

  • Graham Calow
    Sapcote
    01 November 2007
  • Graham Calow
    Sapcote
    04 August 2008
  • David Nicholls
    Ratby garden1
    20 March 2009
  • David Gould
    Narborough Bog NR
    16 June 2010
    female
  • David Nicholls
    Barrow Upon Soar
    15 July 2011
  • David Nicholls
    Ratby Church
    05 February 2010
  • David Nicholls
    Ketton Quarry
    26 May 2012
  • David Nicholls
    Groby Rifle Range
    17 February 2013
  • David Nicholls
    Groby Rifle Range
    17 February 2013
    upper left
  • Frank Clark
    Priory Water
    13 December 2012
  • Graham Calow
    Sapcote garden1
    25 June 2013
  • Graham Calow
    Sapcote
    04 April 2014
    on Cow Parsley
  • Graham Calow
    Sapcote
    04 April 2014
    underside of leaf
  • Graham Calow
    Jubilee Walk, Leire
    16 September 2014
    leafmine on Pendulous Sedge
  • David Nicholls
    White's Wood, Swithland
    28 February 2015
  • David Nicholls
    Anstey Church
    20 March 2015
  • Graham Calow
    Sapcote garden1
    04 July 2015
  • Graham Calow
    Thomas Estley College, Broughton Astley
    24 November 2015
    on Shepherd's Purse
  • David Nicholls
    Ratby
    28 March 2016
  • Peter Smith
    Thurmaston
    27 August 2015
    on Crack Willow
  • Graham Calow
    Near High Cross
    21 March 2016
    on willow
  • David Nicholls
    Groby
    13 August 2016
    blisters on Lesser Sea-spurrey
  • AJ Cann
    Wash Brook Nature Reserve
    26 August 2017
    leafmine on Yellow Iris
  • Annie Smith
    Clarendon Park garden
    19 April 2018
  • Margaret McLoughlin
    Charnwood Lodge NNR
    17 May 2018
    Day flying.
  • David Nicholls
    Botcheston farm
    02 May 2018
  • David Nicholls
    Gipsy Lane Brick Pit, SSSI area
    07 September 2019
  • Geoffrey Hall
    Groby Rifle Range
    17 February 2013



  • Melinda Bell
    New Lount Nature Reserve
    26 January 2022
  • Lindsi Donovan
    Charnwood Lodge NR
    22 May 2021
  • Graham Calow
    Sapcote, Land behind William Spencer Avenue
    21 June 2022
    on Red Clover
  • martindgrimes
    Braunston Churchyard
    28 June 2018
    f. sorediata
  • Peter Thompson
    Narborough Bog
    03 November 2013
  • Peter Thompson
    Narborough Bog
    04 August 2013
  • AnnGleave
    Thurnby Lodge open space
    08 June 2021
    galls on a willow
  • David Nicholls
    Bradgate Park, sliding stones
    25 February 2023
  • Melinda Bell
    Willesley Wood
    01 January 2023
  • AJ Cann
    Billesdon Woodland Pool
    29 September 2024
  • David Nicholls
    Owston Wood
    30 October 2024
  • AJ Cann
    Leicester Knighton Park
    23 June 2026
    distinctive long bent cloud
  • Graham Calow
    Sapcote
    11 July 2008
  • David Gould
    Narborough Bog NR
    16 June 2010
    female
  • Mark Skevington
    Charnwood Lodge
    03 June 2011
    possibly f. albilinea
  • Graham Calow
    Ellistown
    27 June 2011
  • Mark Skevington
    Ketton Quarry
    26 June 2010
  • David Nicholls
    Dimminsdale
    15 March 2014
  • David Nicholls
    Sheet Hedges Wood
    10 December 2011
  • Graham Calow
    Sapcote
    04 April 2014
    on Cow Parsley
  • Graham Calow
    Sapcote
    21 April 2014
    on Shepherd's Purse
  • Steven Lewis
    Welby
    13 August 2016
    on Salix alba
  • AJ Cann
    Charnwood Lodge
    19 May 2018
  • AJ Cann
    Charnwood Lodge
    19 May 2018
  • David Nicholls
    Botcheston farm
    02 May 2018
  • David Nicholls
    Gipsy Lane Brick Pit, SSSI area
    07 September 2019
  • Annie Smith
    Clarendon Park garden
    18 April 2017
  • Geoffrey Hall
    Groby Rifle Range
    17 February 2013
  • Ken Charity
    Anstey.Footpath form Millfield Close to White Bridge.
    23 July 2020
  • Graham Calow
    Burbage, Featherstone Drive
    13 May 2022
  • Graham Calow
    Sapcote, Land behind William Spencer Avenue
    21 June 2022
    on Red Clover
  • martindgrimes
    Braunston Churchyard
    28 June 2018
    f. sorediata
  • David Nicholls
    Charnwood Lodge
    11 October 2023
  • David Nicholls
    Peckleton Church
    18 November 2023
  • AJ Cann
    Billesdon Woodland Pool
    29 September 2024
  • AJ Cann
    Leicester Knighton Park
    23 June 2026
    female
  • Graham Calow
    Sapcote
    11 July 2008
  • David Gould
    Narborough Bog NR
    16 June 2010
    female
  • Mark Skevington
    Ketton Quarry
    26 June 2010
  • David Nicholls
    Sheet Hedges Wood
    10 December 2011
  • Graham Calow
    Sapcote
    04 April 2014
    underside of leaf
  • Graham Calow
    Fosse Meadows, Sharnford
    31 May 2014
    image by John Tinning
  • Graham Calow
    Sapcote
    22 May 2015
  • Graham Calow
    Field near Huncote Road, Stoney Stanton
    18 June 2016
    on Charlock
  • Graham Calow
    Near Abbott Drive, Stoney Stanton
    23 June 2016
  • Alan Semper
    Harby canal
    01 August 2011
    On crack willow
  • Barbara Cooper
    Ulverscroft NR
    08 February 2018
  • AJ Cann
    Charnwood Lodge
    19 May 2018
  • AJ Cann
    St Marys Knighton
    10 December 2018
  • Annie Smith
    Clarendon Park garden
    18 April 2017
  • Mark Skevington
    Whetstone
    17 January 2021
  • Craig Mabbett
    Church Field Broughton Astley
    06 August 2015
  • Graham Calow
    Burbage, Featherstone Drive
    13 May 2022
  • David Nicholls
    Bradgate Park, sliding stones
    25 February 2023
  • Melinda Bell
    Owston Woods
    30 October 2024
    4 celled ascospore
  • AJ Cann
    Leicester Knighton Park
    23 June 2026
  • Graham Calow
    Sapcote
    24 July 2008
  • Graham Calow
    Sapcote
    14 August 2006
  • David Nicholls
    Aylestone Meadows
    26 February 2012
  • Graham Calow
    Sapcote garden1
    25 June 2012
    male - confirmed by gen det
  • Graham Calow
    Woodhouse Eaves
    15 June 2013
    on Shepherd's Purse (Capsella bursa-pastoris)
  • David Nicholls
    Ratby
    01 March 2014
  • Graham Calow
    Sapcote garden1
    27 June 2014
  • Graham Calow
    Frolesworth
    28 July 2015
    leaf winged and tapers into stem
  • Alan Semper
    Harby canal
    29 July 2014
    On crack willow
  • Annie Smith
    Clarendon Park garden
    19 April 2018
  • AJ Cann
    Charnwood Lodge
    19 May 2018
    Ant.4 subdivided into about six subsegments
  • David Nicholls
    Groby garden
    02 February 2021
  • stepgray4
    Charnwood Lodge
    22 May 2023
  • Barbara Cooper
    Beacon Hill CP
    01 February 2018
  • Melinda Bell
    Owston Woods
    30 October 2024
    spiked thecae
  • GHunt
    Oadby garden
    17 May 2026
  • David Nicholls
    Ratby Church
    05 February 2010
    reacts red with bleach
  • Graham Calow
    Sapcote garden1
    27 June 2012
    male - confirmed by gen det
  • David Nicholls
    Sheet Hedges Wood
    10 December 2011
  • Graham Calow
    Sapcote
    21 April 2014
    on Shepherd's Purse
  • Graham Calow
    Springwell Lane, Whetsone
    29 July 2016
  • David Gould
    The Spearwort Fields
    27 July 2016
  • Saharima Roenisch
    Bradgate Park
    06 December 2017
  • AJ Cann
    Charnwood Lodge
    19 May 2018
    Lateral stripes not connected posteriorly
  • sue
    Bagworth
    29 April 2019
  • Lindsi Donovan
    Charnwood Lodge NR
    22 May 2021
  • GHunt
    Oadby garden
    18 May 2026
  • David Nicholls
    Ketton Quarry
    26 May 2012
  • Graham Calow
    Witherley
    01 October 2015
    on Shepherd's Purse
  • David Gould
    The Spearwort Fields
    27 July 2016
  • David Nicholls
    Charley Woods
    18 February 2017
  • Andy's Rutland
    Empingham garden
    22 April 2018
    antennae
  • Melinda Bell
    Ashby, Lower Packington Road
    09 June 2021
  • David Nicholls
    Peckleton Church
    05 May 2020
  • Hazel Graves
    Billesdon Woodland Pool
    25 November 2023
  • Graham Calow
    Sapcote
    24 July 2008
  • Graham Calow
    Huncote, Field off Thurlaston Lane
    10 September 2019
    on Crack-willow
  • Melinda Bell
    Whitwick,Holly Hayes Wood
    07 June 2021
  • Alan Semper
    Melton, Priors Close Park
    28 August 2013
  • Charnwood123
    Ellis Meadows
    03 September 2022
  • Peter Smith
    Thurmaston
    27 August 2015
    on Crack Willow
  • Melinda Bell
    River Sence off Gibbet Lane
    07 September 2021
  • Graham Calow
    Burbage Common
    08 October 2017
    on Willow

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured squares = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

All NatureSpot records