Blackthorn

Foodplant / saprobe
effuse colony of Acrogenospora anamorph of Acrogenospora sphaerocephala is saprobic on rotten wood of Prunus spinosa

Plant / associate
Anthocoris gallarum-ulmi is associated with aphid-galled leaf of Prunus spinosa

Plant / associate
Anthonomus rufus is associated with Prunus spinosa

In Great Britain and/or Ireland:
Foodplant / saprobe
fruitbody of Auricularia auricula-judae is saprobic on wood of Prunus spinosa

Plant / associate
Cardiastethus fasciiventris is associated with lichen-covered Prunus spinosa
Other: major host/prey

Plant / associate
subiculate perithecium of Chaetosphaerella phaeostroma is associated with fungus infected, fallen branch of Prunus spinosa
Remarks: season: 9-4

Foodplant / saprobe
perithecium of Chaetosphaeria myriocarpa is saprobic on fallen, dead branch of Prunus spinosa
Remarks: season: 1-12

Plant / resting place / on
adult of Cryptocephalus bipunctatus may be found on Prunus spinosa
Remarks: season: 4-late 8

Foodplant / saprobe
conidioma of Foveostroma coelomycetous anamorph of Dermea padi is saprobic on dead twig of Prunus spinosa

Foodplant / saprobe
erumpent pycnidium of Foveostroma coelomycetous anamorph of Dermea prunastri is saprobic on dead twig of Prunus spinosa

Foodplant / parasite
Phomopsis coelomycetous anamorph of Diaporthe perniciosa parasitises live branch of Prunus spinosa

Foodplant / saprobe
fruitbody of Dichomitus efibulatus is saprobic on dead, white-rotten wood of Prunus spinosa

Foodplant / saprobe
resupinate fruitbody of Eichleriella deglubens is saprobic on fallen branch of Prunus spinosa

Foodplant / saprobe
stroma of Encoelia fimbriata is saprobic on dead wood of Prunus spinosa
Other: minor host/prey

Foodplant / saprobe
erumpent apothecium of Encoelia fuckelii is saprobic on dead branch of Prunus spinosa
Remarks: season: 4

Foodplant / saprobe
effuse colony of Endophragmiella anamorph of Endophragmiella boothii is saprobic on dead wood of Prunus spinosa
Remarks: season: 10-4

Foodplant / saprobe
immersed perithecium of Endoxyla cirrhosa is saprobic on rotten wood of Prunus spinosa
Remarks: season: good condition: 4-5

Foodplant / parasite
fruitbody of Entoloma clypeatum parasitises live root of Prunus spinosa
Remarks: season: 4-6
Other: minor host/prey

Foodplant / gall
Eriophyes similis causes gall of leaf of Prunus spinosa

Foodplant / parasite
cleistothecium of Erysiphe prunastri parasitises Prunus spinosa

Foodplant / open feeder
colonial, tented caterpillar of Euproctis chrysorrhoea grazes on live leaf of Prunus spinosa
Remarks: season: 8-7

Foodplant / saprobe
stromatic, immersed perithecium of Eutypa flavovirens is saprobic on dead wood of Prunus spinosa
Remarks: season: 1-12

Foodplant / saprobe
stromatic, densely crowded perithecium of Eutypella prunastri is saprobic on dead, often attached branch of Prunus spinosa
Remarks: season: 4-5

Foodplant / saprobe
fruitbody of Exidiopsis calcea is saprobic on dead, decayed wood of Prunus spinosa

Foodplant / saprobe
fruitbody of Ganoderma australe is saprobic on dead trunk of Prunus spinosa

Plant / resting place / within
ovum of Hoplocampa chrysorrhoea may be found in ovary of Prunus spinosa

Plant / resting place / within
ovum of Hoplocampa flava may be found in ovary of Prunus spinosa

Plant / resting place / within
ovum of Hoplocampa rutilicornis may be found in ovary of Prunus spinosa
Other: sole host/prey

Plant / associate
fruitbody of Hygrocybe chlorophana is associated with Prunus spinosa
Other: minor host/prey

Plant / associate
fruitbody of Hypocreopsis rhododendri is associated with live branch of Prunus spinosa

Foodplant / saprobe
Geniculosporium anamorph of Hypoxylon howeanum is saprobic on dead branch of Prunus spinosa
Remarks: season: 1-4
Other: minor host/prey

Foodplant / saprobe
hysterothecium of Hysterium angustatum is saprobic on dead, decorticate branch of Prunus spinosa
Remarks: season: 3-5

Foodplant / saprobe
colony of Monodictys dematiaceous anamorph of Monodictys putredinis is saprobic on rotten wood of Prunus spinosa

Foodplant / open feeder
social larva of Nematus lucidus grazes on leaf of Prunus spinosa

Plant / associate
perithecium of Nitschkia collapsa is associated with fungus-infested Prunus spinosa
Remarks: season: 8-3

Foodplant / saprobe
perithecium of Nitschkia cupularis is saprobic on dead, decorticate branch of Prunus spinosa
Remarks: season: 10-4

Foodplant / feeds on
Orthotylus marginalis feeds on Prunus spinosa

Foodplant / saprobe
Diplodia coelomycetous anamorph of Otthia spiraeae is saprobic on dead branch of Prunus spinosa
Remarks: season: 11-4

Plant / resting place / on
adult of Oulema obscura may be found on Prunus spinosa
Remarks: season: 7-

Foodplant / open feeder
larva of Pareophora pruni grazes on leaf of Prunus spinosa
Other: sole host/prey

Fungus / saprobe
fruitbody of Perenniporia ochroleuca is saprobic on dead, fallen twig of Prunus spinosa

Foodplant / saprobe
sessile apothecium of Pezizella leucostigma is saprobic on branch of Prunus spinosa
Other: major host/prey

Foodplant / saprobe
fruitbody of Phellinus pomaceus is saprobic on dead Prunus spinosa
Other: major host/prey

Foodplant / saprobe
fruitbody of Phlebiopsis ravenelii is saprobic on dead, decayed wood of Prunus spinosa
Other: minor host/prey

Foodplant / sap sucker
Phorodon humuli sucks sap of live shoot of Prunus spinosa
Remarks: season: 3-6, autumn

Foodplant / feeds on
Phyllobius oblongus feeds on Prunus spinosa

Plant / associate
Physatocheila dumetorum is associated with lichen-covered branch of Prunus spinosa

Foodplant / parasite
evanescent, mainly hypophyllous conidial anamorph of Podosphaera tridactyla parasitises live leaf of Prunus spinosa

Foodplant / saprobe
stromatic, immersed perithecium of Polystigma rubrum is saprobic on dead, fallen, overwintered leaf of Prunus spinosa
Other: major host/prey

Foodplant / open feeder
solitary larva of Pristiphora biscalis grazes on leaf of Prunus spinosa

Foodplant / feeds on
larva of Pristiphora monogyniae feeds on Prunus spinosa
Other: sole host/prey

Foodplant / sap sucker
Rhopalosiphum nymphaeae sucks sap of live Prunus spinosa
Remarks: season: winter
Other: major host/prey

Foodplant / internal feeder
larva of Rhynchites aequatus feeds within fruit of Prunus spinosa
Other: major host/prey

Foodplant / internal feeder
larva of Rhynchites auratus feeds within fruit kernel of Prunus spinosa
Other: major host/prey

Foodplant / internal feeder
larva of Rhynchites caeruleus feeds within decaying shoot of Prunus spinosa
Other: major host/prey

Foodplant / internal feeder
larva of Rhynchites pauxillus feeds within leaf (midrib) of Prunus spinosa

Foodplant / saprobe
fruitbody of Serendipita vermifera is saprobic on dead, decayed wood of Prunus spinosa
Other: major host/prey

Foodplant / saprobe
fruitbody of Skeletocutis nivea is saprobic on dead, fallen, decayed stick of Prunus spinosa
Other: minor host/prey

Foodplant / saprobe
fruitbody of Stypella subhyalina is saprobic on dead, decayed wood of Prunus spinosa
Other: major host/prey

Foodplant / pathogen
infection of Taphrina pruni infects and damages live, distorted, stunted, swollen, pale yellow tinged red shoot of Prunus spinosa

Foodplant / spot causer
hypophyllous uredium of Tranzschelia discolor causes spots on live leaf of Prunus spinosa
Remarks: season: 7-9
Other: uncertain

Foodplant / parasite
telium of Tranzschelia pruni-spinosae parasitises live leaf of Prunus spinosa
Remarks: season: 7-9

Foodplant / saprobe
stromatic, valsoid perithecium of Valsaria cincta is saprobic on dead stem of Prunus spinosa

Foodplant / saprobe
fruitbody of Vuilleminia comedens is saprobic on dead, decorticate, attached branch of Prunus spinosa
Other: unusual host/prey

Foodplant / saprobe
fruitbody of Vuilleminia cystidiata is saprobic on dead, decorticate, attached branch of Prunus spinosa
Other: unusual host/prey