Poplar

Foodplant / gall
Agrobacterium tumefaciens causes gall of stem (esp. base) of Populus

Foodplant / miner
often communal larva of Agromyza albitarsis mines leaf of Populus

Plant / resting place / on
swarming adult of Amphimallon solstitialis may be found on live canopy of Populus

In Great Britain and/or Ireland:
Plant / epiphyte
fruitbody of Antrodia albida grows on small, decorticated, fallen branch of Populus

Plant / epiphyte
fruitbody of Antrodia macra grows on dead, decayed wood of Populus

Foodplant / saprobe
superficial, sparsely gregarious pycnidium of Aposphaeria coelomycetous anamorph of Aposphaeria populea is saprobic on dead, decorticate wood of Populus
Remarks: season: 2

Foodplant / saprobe
fruitbody of Athelopsis glaucina is saprobic on decayed wood of Populus

Foodplant / saprobe
scattered sporodochium of Bactrodesmium dematiaceous anamorph of Bactrodesmium obovatum is saprobic on bark of Populus
Remarks: season: 1-12

Foodplant / saprobe
punctiform or effuse colony of Bispora dematiaceous anamorph of Bispora betulina is saprobic on dead wood of Populus

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Boletus ripariellus is ectomycorrhizal with live root of Populus
Other: minor host/prey

Foodplant / saprobe
effuse colony of Brachysporium dematiaceous anamorph of Brachysporium obovatum is saprobic on rotten wood of Populus

Foodplant / roller
larva of Byctiscus betulae rolls leaf (several leaves) of Populus

Foodplant / roller
larva of Byctiscus populi rolls leaf of Populus

Foodplant / saprobe
fruitbody of Byssomerulius corium is saprobic on fallen, decayed wood of Populus
Other: minor host/prey

Foodplant / saprobe
effuse colony of Cacumisporium dematiaceous anamorph of Cacumisporium capitulatum is saprobic on dead wood of Populus

Foodplant / open feeder
larva of Caliroa varipes grazes on leaf of Populus

Foodplant / saprobe
larva of Callicera spinolae is saprobic on rot hole of Populus

Plant / associate
fruitbody of Calocybe obscurissima is associated with Populus

Foodplant / saprobe
erumpent, subsessile apothecium of Calycellina populina is saprobic on dead, fallen leaf of Populus
Remarks: season: 9-3

Foodplant / saprobe
immersed pycnidium of Camarosporium coelomycetous anamorph of Camarosporium propinquum is saprobic on twig of Populus
Remarks: season: 10-5

Foodplant / saprobe
basidiome of Ceriporia purpurea is saprobic on large, decayed, fallen trunk of Populus
Other: minor host/prey

Foodplant / saprobe
effuse colony of Sporotrichum anamorph of Ceriporiopsis aneirina is saprobic on very rotten wood of Populus

Foodplant / saprobe
effuse colony of Chaetopsis dematiaceous anamorph of Chaetopsis grisea is saprobic on fallen, dead branch of Populus

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

Foodplant / saprobe
colony of Menispora dematiaceous anamorph of Chaetosphaeria ovoidea is saprobic on bark of Populus
Remarks: season: mainly winter

Foodplant / pathogen
basidiome of Chondrostereum purpureum infects and damages trunk of Populus

Foodplant / open feeder
imago of Chrysomela populi grazes on leaf of Populus

Foodplant / open feeder
larva of Cimbex luteus grazes on leaf of Populus

Foodplant / open feeder
adult of Clytra laeviuscula grazes on live flower of Populus
Remarks: season: 5-8
Other: major host/prey

Foodplant / saprobe
fruitbody of Coniophora arida is saprobic on decayed wood of Populus
Other: minor host/prey

Foodplant / gall
larva of Contarinia petioli causes gall of leaf (petiole) of Populus

Foodplant / saprobe
fruitbody of Corticium roseum is saprobic on dead, decayed, often attached branch of Populus
Other: major host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Cortinarius arvinaceus is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Cortinarius ochroleucus is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Cortinarius trivialis is ectomycorrhizal with live root of Populus

Foodplant / saprobe
effuse colony of Bactrodesmium dematiaceous anamorph of Corynesporopsis quercicola is saprobic on rotten wood of Populus
Remarks: season: 9-5

Foodplant / internal feeder
Cossonus linearis feeds within under bark of Populus
Other: major host/prey

Foodplant / internal feeder
Cossonus parallelepipedus feeds within dead wood of Populus
Other: major host/prey

Foodplant / internal feeder
caterpillar of Cossus cossus feeds within live trunk of Populus

Foodplant / open feeder
imago of Crepidodera aurata grazes on leaf of Populus

Foodplant / open feeder
imago of Crepidodera aurea grazes on leaf of Populus

Foodplant / open feeder
imago of Crepidodera fulvicornis grazes on leaf of Populus

Foodplant / open feeder
imago of Crepidodera nitidula grazes on leaf of Populus

Foodplant / open feeder
imago of Crepidodera plutus grazes on leaf of Populus

Foodplant / open feeder
gregarious larva of Croesus septentrionalis grazes on live leaf edge of Populus
Remarks: season: 5-
Other: minor host/prey

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

Foodplant / open feeder
adult of Cryptocephalus moraei grazes on live leaf of Populus
Remarks: season: 5-9

Plant / resting place / on
adult of Cryptocephalus nitidulus may be found on Populus
Remarks: season: early 5-9

Plant / resting place / on
adult of Cryptocephalus punctiger may be found on Populus
Remarks: season: 5-8
Other: uncertain

Plant / resting place / on
adult of Cryptocephalus pusillus may be found on Populus
Remarks: season: 5-10

Foodplant / saprobe
sporodochium of Cryptocoryneum dematiaceous anamorph of Cryptocoryneum condensatum is saprobic on dead bark of Populus

Foodplant / pathogen
conidioma of Discosporium coelomycetous anamorph of Cryptodiaporthe populea infects and damages live twig of Populus

Foodplant / saprobe
bracket of Daedalea quercina is saprobic on hard, barely decayed wood of Populus
Remarks: Other: uncertain

Foodplant / saprobe
superficial stroma of Daldinia concentrica is saprobic on wood of Populus

Foodplant / saprobe
widely effused stroma of Diatrype stigma is saprobic on dead, decorticate or with bark rolling back branch of Populus
Remarks: season: 1-12

Foodplant / saprobe
scattered or in small groups pycnidium of Aposphaeria coelomycetous anamorph of Diplodiella fibricola is saprobic on wood chip of Populus
Remarks: season: 8-11

Plant / resting place / within
imago of Dorcus parallelipipedus may be found in spongy wood of Populus

Foodplant / feeds on
larva of Dorytomus filirostris feeds on Populus

Foodplant / feeds on
Dorytomus longimanus feeds on Populus

Foodplant / feeds on
Dorytomus validirostris feeds on Populus

Foodplant / saprobe
colony of Endophragmiella dematiaceous anamorph of Endophragmiella pallescens is saprobic on rotten wood of Populus

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

Foodplant / pathogen
Entoleuca mammata infects and damages live stem of Populus

Foodplant / gall
communal larva of Euura amerinae causes gall of twig of Populus
Other: major host/prey

Foodplant / saprobe
sporodochium of Excipularia dematiaceous anamorph of Excipularia fusispora is saprobic on branch of Populus
Remarks: season: 1-9

Foodplant / saprobe
larva of Ferdinandea is saprobic on sap run of Populus

Plant / associate
larva of Ferdinandea ruficornis is associated with Cossus-infested sap run of Populus

Foodplant / saprobe
cleistothecium of Fragosphaeria reniformis is saprobic on rotten wood of Populus

Foodplant / saprobe
clustered perithecium of Gibberella pulicaris is saprobic on dead branch of Populus
Remarks: season: 1-4
Other: minor host/prey

Foodplant / saprobe
hysterothecium of Gloniopsis praelonga is saprobic on dead twig of Populus
Remarks: season: 1-12

Foodplant / saprobe
immersed or erumpent perithecium of Gnomonia alni-viridis is saprobic on leaf-litter of Populus
Remarks: season: 1-6

Foodplant / gall
larva of Gypsonoma aceriana causes gall of stem (near tip) of Populus

Foodplant / gall
larva of Harmandia globuli causes gall of leaf of Populus

Plant / associate
fruitbody of Hebeloma groegeri is associated with Populus

Plant / resting place / under
larva of Helina subvittata may be found under bark of Populus

Foodplant / saprobe
fruitbody of Hemimycena mauretanica is saprobic on decayed debris (woody) of Populus

Foodplant / feeds on
fruitbody of Hericium erinaceus feeds on trunk of Populus
Remarks: Other: uncertain

Plant / associate
Heringia is associated with aphid infested Populus

Plant / associate
effuse colony of Heteroconium anamorph of Heteroconium tetracoilum is associated with damp, rotten branch of Populus

Foodplant / saprobe
apothecium of Hyalinia rubella is saprobic on dead branch (bark) of Populus
Remarks: season: 1-12

Foodplant / saprobe
apothecium of Hyalopeziza millepunctata is saprobic on dead twig of Populus
Remarks: season: 10-6

Foodplant / saprobe
gregarious apothecium of Hyaloscypha hyalina is saprobic on dead branch of Populus
Remarks: season: 1-12
Other: minor host/prey

Foodplant / saprobe
stalked apothecium of Hymenoscyphus caudatus is saprobic on decaying petiole of Populus
Remarks: season: 6-12

Foodplant / saprobe
erumpent, short-stalked apothecium of Hymenoscyphus immutabilis is saprobic on dead, fallen leaf of Populus
Remarks: season: 10-12

Foodplant / saprobe
apothecium of Hymenoscyphus phyllogenus is saprobic on dead, fallen, rotting leaf (mesophyll) of Populus
Remarks: season: 10-11

Foodplant / saprobe
stalked apothecium of Hymenoscyphus vernus is saprobic on dead, fallen branch of Populus
Remarks: season: 2-9

Plant / associate
fruitbody of Hypochnicium lundellii is associated with live root of Populus

Foodplant / saprobe
colony of Trichoderma dematiaceous anamorph of Hypocrea rufa is saprobic on rotten wood of Populus

Foodplant / saprobe
stroma of Hypoxylon rubiginosum is saprobic on dead bark of Populus

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

Foodplant / saprobe
superficial hysteriothecium of Hysterographium fraxini is saprobic on dead, decorticate wood of Populus

Foodplant / saprobe
hysterothecium of Hysterographium mori is saprobic on dead branch of Populus

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Inocybe praetervisa is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Inocybe splendens var. phaeoleuca is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Inocybe squamata is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / saprobe
fruitbody of Inonotus radiatus is saprobic on trunk of Populus
Other: unusual host/prey

Foodplant / internal feeder
larva of Janus luteipes feeds within young shoot of Populus

Foodplant / saprobe
colony of Dendryphiopsis dematiaceous anamorph of Kirschsteiniothelia aethiops is saprobic on decorticate branch of Populus
Remarks: season: 12-4

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Lactarius controversus is ectomycorrhizal with root of Populus
Remarks: Other: uncertain
Other: major host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Lactarius evosmus is ectomycorrhizal with root of Populus
Remarks: Other: uncertain

Foodplant / saprobe
superficial perithecium of Lasiosphaeria phyllophila is saprobic on debris of Populus
Remarks: season: 11-4

Foodplant / parasite
underground rhizome of Lathraea clandestina parasitises root of Populus
Other: major host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Leccinum aurantiacum is ectomycorrhizal with live root of Populus
Other: major host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Leccinum duriusculum is ectomycorrhizal with live root of Populus
Other: sole host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Leccinum variicolor is ectomycorrhizal with live root of Populus

Foodplant / saprobe
clustered fruitbody of Lentinus tigrinus is saprobic on dead, floating wood of Populus
Other: major host/prey

Foodplant / pathogen
Leucostoma niveum infects and damages live branch of Populus

Foodplant / saprobe
thyriothecium of Lichenopeltella nigroannulata is saprobic on overwintered, dead leaf of Populus
Other: minor host/prey

Foodplant / saprobe
immersed perithecium of Linospora ceuthocarpa is saprobic on dead branch of Populus
Remarks: season: 6-9

Foodplant / saprobe
usually immersed pseudothecium of Lophiostoma compressum is saprobic on decorticate wood of Populus
Remarks: season: 10-2

Foodplant / saprobe
immersed pseudothecium of Lophiostoma nucula is saprobic on wood of Populus
Remarks: season: 4-7

Foodplant / saprobe
fruitbody of Marasmius favrei is saprobic on dead, fallen, decaying leaf of Populus

Foodplant / saprobe
superficial, often in very large clusters pseudothecium of Melanomma pulvis-pyrius is saprobic on dry, hard, decorticate branch wood of Populus
Remarks: season: 9-5

Foodplant / saprobe
superficial, thickly clustered perithecium of Melanopsamma pomiformis is saprobic on wood of Populus
Remarks: season: 11-4

Foodplant / saprobe
immersed or erumpent perithecium of Melomastia mastoidea is saprobic on dead branch of Populus

Foodplant / saprobe
thyriothecium of Microthyrium fagi is saprobic on fallen, dead leaf of Populus
Remarks: season: 10-11

Foodplant / saprobe
apothecium of Mollisina acerina is saprobic on leaf-litter of Populus

Foodplant / saprobe
larva of Myathropa florea is saprobic on rot hole of Populus

Foodplant / saprobe
sporodochium of Tubercularia anamorph of Nectria cinnabarina is saprobic on dead branch of Populus

Foodplant / saprobe
erumpent stroma of Nectria coccinea is saprobic on dead branch of Populus
Remarks: season: 9-5

Foodplant / pathogen
Nectria galligena infects and damages cankered branch of Populus

Foodplant / saprobe
perithecium of Nectria mammoidea var. mammoidea is saprobic on fallen, dead branch of Populus
Remarks: season: 9-5

Foodplant / saprobe
superficial perithecium of Nectria pseudopeziza is saprobic on dead branch of Populus
Remarks: season: 9-4

Foodplant / saprobe
perithecium of Nectria veuillotiana is saprobic on dead branch of Populus
Remarks: season: 10-3

Foodplant / saprobe
effuse colony of Geniculosporium dematiaceous anamorph of Nemania serpens is saprobic on dead branch of Populus

Foodplant / open feeder
larva of Nematus coeruleocarpus grazes on leaf of Populus
Other: major host/prey

Foodplant / open feeder
larva of Nematus crassus grazes on leaf of Populus

Foodplant / open feeder
larva of Nematus hypoxanthus grazes on leaf of Populus

Foodplant / open feeder
gregarious larva of Nematus melanaspis grazes on leaf of Populus

Foodplant / open feeder
larva of Nematus melanocephalus grazes on leaf of Populus
Other: minor host/prey

Foodplant / open feeder
gregarious larva of Nematus miliaris grazes on leaf of Populus
Other: minor host/prey

Foodplant / open feeder
larva of Nematus nigricornis grazes on leaf of Populus

Foodplant / open feeder
larva of Nematus pavidus grazes on leaf of Populus
Other: major host/prey

Foodplant / saprobe
apothecium of Neobulgaria lilacina is saprobic on cut end of stump of Populus
Remarks: season: 10-5

Foodplant / saprobe
perithecium of Nitschkia grevillei is saprobic on dead branch of Populus
Remarks: season: 10-3

Foodplant / saprobe
apothecium of Orbilia coccinella is saprobic on rotten wood of Populus
Remarks: season: 9-10

Foodplant / saprobe
apothecium of Orbilia luteorubella is saprobic on rotten wood of Populus
Remarks: season: 4-9

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

Foodplant / parasite
fruitbody of Oxyporus populinus parasitises live wood of Populus

Foodplant / saprobe
subiculate apothecium of Patinellaria sanguinea is saprobic on decorticate wood of Populus

Foodplant / gall
Pemphigus bursarius causes gall of leaf (petiole) of Populus
Remarks: season: 5-7

Foodplant / gall
Pemphigus filaginis causes gall of blister-galled leaf (mid-rib) of Populus
Remarks: season: spring

Foodplant / gall
Pemphigus gairi causes gall of leaf of Populus

Foodplant / gall
Pemphigus lysimachiae causes gall of leaf of Populus

Foodplant / gall
Pemphigus phenax causes gall of leaf of Populus

Foodplant / gall
Pemphigus spirothecae causes gall of spiral-shaped gall leaf (petiole) of Populus
Remarks: season: spring

Foodplant / saprobe
apothecium of Pezizella gemmarum is saprobic on dead, fallen bud scale of Populus
Remarks: season: 11-4

Foodplant / saprobe
colony of Phaeostalagmus dematiaceous anamorph of Phaeostalagmus cyclosporus is saprobic on fallen, dead branch of Populus
Remarks: season: 1-12

Plant / resting place / under
larva of Phaonia serva may be found under bark of Populus

Foodplant / parasite
fruitbody of Phellinus conchatus parasitises live, old trunk of Populus
Other: minor host/prey

Foodplant / saprobe
apothecium of Phialina lachnobrachya is saprobic on dead leaf of Populus
Remarks: season: 9-11

Foodplant / saprobe
stalked, clustered basidiocarp of Phleogena faginea is saprobic on dead wood of Populus

Foodplant / internal feeder
Phloeophagus lignarius feeds within dead, esp hollow wood of Populus

Foodplant / saprobe
fruitbody of Pholiota aurivella is saprobic on dead, fallen, decayed trunk (large) of Populus

Foodplant / saprobe
fruitbody of Pholiota populnea is saprobic on dead log (large, sawn) of Populus
Remarks: season: autumn
Other: major host/prey

Foodplant / saprobe
fruitbody of Pholiota squarrosa is saprobic on relatively freshly cut, white rotted stump of Populus

Foodplant / saprobe
effuse colony of Phragmocephala dematiaceous anamorph of Phragmocephala elliptica is saprobic on dead branch of Populus
Remarks: season: 4-10

Foodplant / saprobe
effuse colony of Phragmocephala dematiaceous anamorph of Phragmocephala prolifera is saprobic on rotting branch of Populus
Remarks: season: 9

Foodplant / open feeder
imago of Phratora laticollis grazes on leaf of Populus

Foodplant / open feeder
imago of Phratora vitellinae grazes on leaf of Populus

Foodplant / open feeder
imago of Phratora vulgatissima grazes on leaf of Populus

Foodplant / feeds on
Phyllobius argentatus feeds on Populus

Foodplant / feeds on
Phyllobius pyri feeds on Populus

Foodplant / saprobe
becoming superficial, scattered pycnidium of Pleurophoma coelomycetous anamorph of Pleurophoma pleurospora is saprobic on dead wood of Populus
Remarks: season: 3,11

Foodplant / saprobe
fruitbody of Pleurotus cornucopiae is saprobic on dead, decayed trunk (large) of Populus
Remarks: season: summer

Foodplant / saprobe
fruitbody of Pleurotus dryinus is saprobic on live, standing trunk of Populus

Foodplant / saprobe
fruitbody of Pluteus aurantiorugosus is saprobic on dead, fallen, decayed trunk of Populus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Pluteus chrysophaeus is saprobic on dead, very decayed wood of Populus
Other: unusual host/prey

Foodplant / saprobe
fruitbody of Pluteus salicinus is saprobic on dead, decayed wood of Populus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Pluteus thomsonii is saprobic on dead, decayed, often part buried wood of Populus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Pluteus umbrosus is saprobic on dead, decayed wood of Populus
Other: minor host/prey

Foodplant / feeds on
Polydrusus cervinus feeds on Populus

Foodplant / feeds on
Polydrusus pterygomalis feeds on Populus

Foodplant / feeds on
Polydrusus tereticollis feeds on Populus

Foodplant / saprobe
fruitbody of Polyporus brumalis is saprobic on dead, still attached to fallen tree twig of Populus
Remarks: season: early winter-early spring
Other: minor host/prey

Foodplant / saprobe
fruitbody of Polyporus leptocephalus is saprobic on dead, decayed stump (large) of Populus
Other: minor host/prey

Foodplant / pathogen
Poplar Mosaic virus infects and damages patterned leaf of Populus

Foodplant / saprobe
fruitbody of Postia tephroleuca is saprobic on dead, fallen, decayed trunk (large) of Populus
Other: minor host/prey

Foodplant / open feeder
social larva of Pristiphora conjugata grazes on leaf of Populus
Other: sole host/prey

Foodplant / feeds on
larva of Protoemphytus perla feeds on leaf (underside) of Populus

Foodplant / sap sucker
nymph of Psallus confusus sucks sap of Populus

Foodplant / saprobe
fruitbody of Psathyrella populina is saprobic on dead, decayed wood of Populus

Foodplant / saprobe
erumpent apothecium of Pyrenopeziza petiolaris is saprobic on petiole of Populus
Remarks: season: 5-10

Foodplant / saprobe
fruitbody of Resupinatus applicatus is saprobic on dead, decayed wood of Populus
Other: minor host/prey

Foodplant / saprobe
fruitbody of Rhodotus palmatus is saprobic on dead, fallen, decayed wood of Populus
Other: unusual host/prey

Foodplant / open feeder
nocturnal larva of Rhogogaster chlorosoma grazes on leaf of Populus

Foodplant / feeds on
Rhynchaenus populi feeds on Populus

Foodplant / internal feeder
larva of Rhynchites tomentosus feeds within bud (vegetative) of Populus

Foodplant / internal feeder
larva of Saperda carcharias feeds within dead trunk (near base) of young of Populus

Foodplant / gall
larva of Saperda populnea causes gall of live branch of Populus

Foodplant / internal feeder
larva of Saperda scalaris feeds within recently dead sapwood (outer) of Populus

Foodplant / saprobe
sporodochium of Sarcopodium anamorph of Sarcopodium tortuosum is saprobic on dead wood of Populus

Foodplant / saprobe
fruitbody of Schizophyllum amplum is saprobic on dying branch of Populus
Other: major host/prey

Foodplant / internal feeder
larva of Scolytus intricatus feeds within cambium of Populus

Foodplant / feeds on
mainly epiphyllous, few, pallid pycnidium of Septoria coelomycetous anamorph of Septoria populi feeds on leaf of Populus

Foodplant / saprobe
fruitbody of Skeletocutis vulgaris is saprobic on dead, fallen, decayed branch (large) of Populus
Other: minor host/prey

Foodplant / open feeder
caterpillar of Smerinthus ocellata grazes on live leaf of Populus

Foodplant / saprobe
effuse colony of Spadicoides dematiaceous anamorph of Spadicoides atra is saprobic on dead wood of Populus

Foodplant / saprobe
larva of Sphegina is saprobic on under very wet bark of Populus

Foodplant / saprobe
fruitbody of Spongipellis spumeus is saprobic on wood of Populus
Other: unusual host/prey

Foodplant / saprobe
effuse colony of Sporidesmium dematiaceous anamorph of Sporidesmium pedunculatum is saprobic on rotting wood of Populus

Foodplant / open feeder
larva of Stauronematus compressicornis grazes on leaf of Populus
Other: major host/prey

Foodplant / saprobe
effuse colony of Pseudospiropes dematiaceous anamorph of Strossmayeria atriseda is saprobic on dead bark of Populus

Foodplant / gall
hypophyllous ascoma of Taphrina aurea causes gall of live, blistered leaf of Populus

Foodplant / gall
Taphrina johansonii causes gall of swollen carpel of Populus

Foodplant / gall
Taphrina populina causes gall of live leaf of Populus

Foodplant / gall
fundatrigenia of Thecabius affinis causes gall of live, down-folded leaf of Populus

Foodplant / saprobe
fruitbody of Trametes gibbosa is saprobic on dead, decayed stump (large) of Populus
Other: minor host/prey

Foodplant / parasite
fruitbody of Trametes suaveolens parasitises live trunk of Populus
Other: major host/prey

Foodplant / saprobe
partly immersed pseudothecium of Trematosphaeria hydrela is saprobic on dead bark of Populus

Foodplant / saprobe
apothecium of Tricharina ascophanoides is saprobic on rotten wood of Populus

Foodplant / open feeder
gregarious larva of Trichiocampus viminalis grazes on leaf of Populus
Other: major host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Tricholoma populinum is ectomycorrhizal with live root of Populus
Remarks: Other: uncertain

Foodplant / saprobe
colony of Troposporella anamorph of Troposporella fumosa is saprobic on bark of Populus

Foodplant / internal feeder
larva of Trypophloeus asperatus feeds within cambium of Populus

Foodplant / internal feeder
larva of Trypophloeus granulatus feeds within cambium of Populus

Foodplant / parasite
Uncinula adunca parasitises live leaf of Populus

Foodplant / saprobe
subgregarious to densely scattered, covered then erumpent, blackish grey with paler roundish flat disc stroma of Cytospora coelomycetous anamorph of Valsa ambiens is saprobic on branch of Populus
Remarks: season: 10-5

Foodplant / saprobe
immersed pseudothecium of Venturia populina is saprobic on dead, fallen shoot of Populus
Remarks: season: spring

Foodplant / gall
haustorium of Viscum album causes gall of branch of Populus

Foodplant / saprobe
fruitbody of Volvariella bombycina is saprobic on dead stump (large) of Populus
Other: unusual host/prey

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Xerocomus bubalinus is ectomycorrhizal with live root of Populus

Foodplant / mycorrhiza / ectomycorrhiza
fruitbody of Xerocomus silwoodensis is ectomycorrhizal with live root of Populus
Other: sole host/prey

Foodplant / internal feeder
larva of Xiphydria prolongata feeds within wood of Populus

Foodplant / saprobe
colony of Xylohypha dematiaceous anamorph of Xylohypha nigrescens is saprobic on wood of Populus

Foodplant / miner
larva of Zeugophora subspinosa mines leaf of sapling of Populus
Remarks: season: early 6-mid 7