Doncaster Naturalists’ Society Excursion to Kings Wood, Bawtry – 6th September 2020

This is a joint meeting with the British Plant Gall Society.
Meet at grid ref: SK651945 just off Bawtry Road (A638) at 10.30am

Leader : Tom Higginbottom assisted by Ian Farmer (Plant Gall Society)
Members Present : Nora Boyle, Les Coe, Jim Burnett , Colin Howes, Anthony French

Over forty different galls were discovered in the two sites which were explored during the day. The silk button Neuroterus numismalis and the common spangle N. quercusbaccarum were abundant on the underside of Oak leaves. There were also species of the smooth spangle N. albipes, similar to the common spangle but often white in colour and less hairy. We also saw a few examples of the aptly named cherry gall Cynips quercusfolii, a spherical gall on the underside of the Oak leaf, as large as a cherry, which is occasionally red in colour. Nora Boyle spotted some fine examples in Black Carr Plantation. This year the usually common oyster gall N. anthracinus which is attached to the leaf central vein has been rarely recorded but after careful searching we discovered some examples. A variety of galls were found on the Oak buds but none were common. The marble gall Andricus kollari was the most familiar and the smaller, rougher surfaced cola-nut gall A. lignicolus was spotted quite a few times. Some years the artichoke gall is common but not in 2020 however specimens were discovered. Ian Farmer spotted two examples of A. glandulae clustered together; these small bud galls are conical in shape with silky white hairs. He found a single example of A. malpighii , a small slightly elongated bud with five longitudinal ridges. There was discussion about another of his discoveries A. infectorius, possibly the first Yorkshire record. Ian’s photograph is on the front of the latest issue of the BPGS Journal Cecidology. Old examples of the ramshorn gall A. aries were discovered but eventually new galls were found. In recent years A. grossulariae has often been discovered galling acorn cups, but it can also gall buds. None were seen in King’s Wood, but there were a few examples discovered galling buds in Black Carr Plantation. 2019 was an abundant year for the knopper A. quercuscalicis galling the acorns. This year, fortunately for the regeneration of the Oaks, there were less galled acorns. Once members were introduced to tiny clusters of A. gemmeus, small yellowish, occasionally reddish, cone-like bumps found on buds arising from the bark, many examples were found. A fine example of the barnacle gall A. sieboldii was found near the base of a young sapling in Black Carr Plantation.

There were galls on the leaves of Beech. The edges of some leaves were slightly swollen and lighter in colour, indicating they had been galled by the mite Acalitus stenaspis. The small, hairy or smooth cylinder-like structure of Hartigiola annulipes was common on the upper surface while the sugary-like erineum, a mite structure caused by Aceria nervesequa , was visible on the lower surfaces. Sallows were often found on the edge of the wood. The small pimples of the midge galler Iteomyia capreae were abundant on some trees, and there were also the distinctive swellings of I. major and of the sawfly galler Pontania bridgmanii. A Walnut had green bulges on the upper leaf surface indicating the common mite gall A. erinea. Many leaves of an Elm species were covered in mite pimples caused by Aceria campestricola. The usually common galls on the leaves of Sycamore, the small red pimples, Aceria cephalonea and the erineum A. pseudoplatani on the lower surface took a while to find. In Black Carr Plantation there were a few examples of the uncommon midge gall Dasineura irregularis which had thickened and distorted the leaves of a Sycamore sapling. Ian Farmer had found this a few years ago. On Field Maple we found a few examples of Aceria macrochela and the common pimple gall A. myriadeum.

We investigated the smaller northern part of the King’s Wood between the A638 and the railway line. The most interesting discovery was on the footpath by the road. Red pimples formed by the mite Aceria artemisae were found on the leaves of Mugwort. I had recorded this gall in the same place in 2019. In the main woodland the hairy swelling of the midge gall Dasinuera urticae was seen a few times on Stinging Nettle, and there were distortions of the upper leaves caused by the mite Trioza urticae. Eventually on the leaves of Ground Ivy the lighthouse gall was spotted caused, by the gall wasp Liposthenes glechomae. Careful searches of the Rosebay Willowherb led to the discovery of the leaf roll caused by Dasineura kiefferiana. Large colonies of Bracken in Black Carr Plantation eventually led to the discovery of the Black Pudding gall, a shiny black roll on the underside of a pinnulet, and the tips of some leaves had been rolled by the midge Chirosia grossicauda.

Tom Higginbottom

King’s Wood near Bawtry (VC 63) by T. Higginbottom &  I. Farmer – 06/09/2020 

HOST PLANT HOST COMMON NAME GALL INDUCER GALL INDUCER
COMMON NAME
GENER-
ATION
SK650943         
Quercus robur pedunculate oak Neuroterus albipes Wasp agamic
Quercus robur pedunculate oak Neuroterus anthracinus Wasp agamic
Quercus robur pedunculate oak Neuroterus numismalis Wasp agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Rubus sp. bramble Dasineura plicatrix Midge  
Urtica dioica common nettle Dasineura urticae Midge  
SK650944        
Fagus sylvatica beech Aceria nervisequa Mite  
Fagus sylvatica beech Hartigiola annulipes Midge  
Quercus robur pedunculate oak Andricus aries Wasp agamic
Quercus robur pedunculate oak Andricus curvator Wasp sexual
Quercus robur pedunculate oak Andricus foecundatrix Wasp agamic
Quercus robur pedunculate oak Andricus aries Wasp agamic
Quercus robur pedunculate oak Andricus curvator Wasp sexual
Quercus robur pedunculate oak Andricus foecundatrix Wasp agamic
Quercus robur pedunculate oak Andricus gemmeus Wasp agamic
Quercus robur pedunculate oak Andricus lignicolus Wasp agamic
Quercus robur pedunculate oak Andricus quercuscorticis Wasp agamic
Quercus robur pedunculate oak Asterodiaspis sp. Scale Insect  
Quercus robur pedunculate oak Macrodiplosis roboris Midge  
Quercus robur pedunculate oak Neuroterus albipes Wasp agamic
SK650945        
Quercus robur pedunculate oak Andricus glandulae Mite agamic 2 galls
Urtica dioica common nettle Trioza urticae Psyllid  
SK649946        
Crataegus monogyna hawthorn Phyllocoptes goniothorax Mite  
Pteridium aquilinum bracken Dasineura pteridis Midge  
Quercus robur pedunculate oak Andricus aries Wasp agamic
Quercus robur pedunculate oak Andricus kollari Wasp sexual
Quercus robur pedunculate oak Andricus lignicolus Wasp agamic
Quercus robur pedunculate oak Andricus quercuscalicis Wasp agamic
Quercus robur pedunculate oak Cynips quercusfolii Wasp  agamic
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Rosa canina dog rose Dasineura rosae Midge  
SK648949        
Acer pseudoplatanus sycamore Aceria cephalonea Mite  
Glechoma hederacea ground-ivy Rondaniola bursaria Midge  
Quercus robur pedunculate oak Macrodiplosis pustularis Midge  
Quercus robur pedunculate oak Neuroterus numismalis Wasp agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Ulmus procera English elm Aceria campestricola Mite  
SK649948        
Artemisia vulgaris mugwort Aceria artemisiae Mite small colony
Fagus sylvatica beech Acalitus stenaspis Mite  
SK649947        
Acer pseudoplatanus sycamore Aceria pseudoplatani Mite  
Quercus robur pedunculate oak Andricus gemmeus Wasp agamic 
Urtica dioica common nettle Trioza urticae Psyllid  
SK651945        
Acer pseudoplatanus sycamore Aceria cephalonea Mite  
Quercus robur pedunculate oak Andricus lignicolus Wasp agamic 
Urtica dioica common nettle Neuroterus quercusbaccarum Wasp agamic abundant
SK652945        
Acer pseudoplatanus sycamore Aceria cephalonea Mite  
Acer pseudoplatanus sycamore Aceria pseudoplatani Mite  
Rubus sp. bramble Dasineura plicatrix Midge  
Salix caprea goat willow Iteomyia capreae Midge  
Salix caprea goat willow Iteomyia major Midge  
Urtica dioica common nettle Dasineura urticae Midge  
SK652944        
Chamerion angustifolium rosebay willowherb Dasineura kiefferiana Midge  
Quercus robur pedunculate oak Andricus aries Wasp agamic
Quercus robur pedunculate oak Andricus gemmeus Wasp agamic
Quercus robur pedunculate oak Andricus infectorius Wasp agamic
Quercus robur pedunculate oak Macrodiplosis roboris Midge  
Quercus robur pedunculate oak Neuroterus albipes Wasp agamic
Quercus robur pedunculate oak Neuroterus numismalis Wasp agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Rubus sp. bramble Phragmidium violaceum Fungus  
Salix caprea goat willow Iteomyia capreae Midge  
Salix caprea goat willow Iteomyia major Midge  
SK653942        
Acer campestre field maple Aceria macrochela Mite  
Fraxinus excelsior ash Dasineura fraxinea Midge  
Fraxinus excelsior ash Psyllopsis fraxini Psyllid  
Juglans regia walnut Aceria erinea    
Quercus robur pedunculate oak Andricus kollari Wasp agamic
Quercus robur pedunculate oak Macrodiplosis roboris Midge  
Quercus robur pedunculate oak Neuroterus numismalis Wasp  agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Quercus robur pedunculate oak Trioza remota Psyllid  
Rosa canina dog rose Blennocampa phyllocolpa Sawfly  
SK654941        
Prunus spinosa blackthorn Eriophyes similis Mite  
Rosa canina dog rose Diplolepis rosae Wasp  

Black Carr Plantation (VC 63) by T. Higginbottom &  I. Farmer – 06/09/2020 

SE626009        
Fraxinus excelsior ash Dasineura fraxini Midge  
Quercus robur pedunculate oak Andricus quercuscalicis Wasp agamic
Quercus robur pedunculate oak Neuroterus numismalis Wasp agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
SE628009        
Pteridium aquilinum bracken Chirosia grossicauda Fly  
Pteridium aquilinum bracken Dasineura pteridis Midge  
Quercus robur pedunculate oak Andricus curvator Wasp sexual
Rosa canina dog rose Blennocampa phyllocolpa Sawfly  
Senecio vulgaris groundsel Puccinia lagenophorae Fungus  
Urtica dioica common nettle Dasineura urticae Midge  
SE627010        
Acer pseudoplatanus sycamore Aceria cephalonea Mite  
Quercus robur pedunculate oak Andricus quercuscorticis Wasp agamic
Quercus robur pedunculate oak Neuroterus numismalis Wasp agamic abundant
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic abundant
Rubus sp. bramble Dasineura plicatrix Midge  
Sambucus nigra elder Epitrimerus trilobus Mite  
Sorbus aucuparia rowan Eriophyes pyri Mite  
SE628011        
Quercus robur pedunculate oak Andricus gemmeus Wasp agamic
Quercus robur pedunculate oak Andricus malpighii Wasp agamic
Urtica dioica common nettle Trioza urticae Psyllid  
SE628012        
Acer pseudoplatanus sycamore Dasineura irregularis Midge  
Quercus robur pedunculate oak Andricus grossulariae Wasp agamic 4 on buds
Quercus robur pedunculate oak Andricus lignicolus Wasp agamic 
Quercus robur pedunculate oak Andricus sieboldi Wasp agamic 
Quercus robur pedunculate oak Cynips quercusfolii Wasp agamic 3 galls
Rosa canina dog rose Dasineura rosae Midge  
Rubus sp. bramble Phragmidium violaceum Fungus  
Salix cinerea grey willow Iteomyia capreae Midge  
Salix cinerea grey willow Iteomyia major Midge  
Salix cinerea grey willow Pontania bridgmanii Sawfly  
SE631011        
Fagus sylvatica beech Hartigiola annulipes Midge  

Black Carr Plantation (VC 63) by T. Higginbottom &  I. Farmer – 06/09/2020 

 

 

SE6201        
Acer campestre field maple Aceria myriadeum Mite  
Acer pseudoplatanus sycamore Aceria cephalonea Mite  
Acer pseudoplatanus sycamore Aceria pseudoplatani Mite  
Chamerion angustifolium rosebay willowherb Dasineura kiefferiana Midge  
Quercus robur pedunculate oak Andricus kollari Wasp Agamic
Fagus sylvatica beech Hartigiola annulipes Midge  
Quercus robur pedunculate oak Andricus aries Wasp agamic old & new
Quercus robur pedunculate oak Andricus curvator Wasp sexual
Quercus robur pedunculate oak Andricus foecundatrix Wasp agamic
Quercus robur pedunculate oak Andricus kollari Wasp agamic new galls
Quercus robur pedunculate oak Andricus lignicolus Wasp agamic old galls
Quercus robur pedunculate oak Andricus sieboldi Wasp agamic 9 galls
Quercus robur pedunculate oak Cynips quercusfolii Wasp agamic early stage
Quercus robur pedunculate oak Neuroterus quercusbaccarum Wasp agamic common
Quercus robur pedunculate oak Trioza remota Psyllid  
Rosa canina dog rose Blennocampa phyllocolpa Sawfly  
Rosa canina dog rose Diplolepis rosae Wasp  
Rubus sp. bramble Dasineura plicatrix Midge  
Salix caprea goat willow Eupontania pedunculi Sawfly  
Salix caprea goat willow Iteomyia capreae Midge  
Salix cinerea grey willow Iteomyia major Midge  
Salix cinerea grey willow Pontania bridgmanii Sawfly  
Sorbus aucuparia rowan Eriophyes pyri Mite  
Urtica dioica common nettle Dasineura urticae Midge