歐榛

Foodplant / internal feeder
larva of Agrilus angustulus feeds within wood of Corylus avellana

Foodplant / internal feeder
larva of Agrilus laticornis feeds within wood of Corylus avellana

Plant / hibernates / within
naked prepupa of Allantus coryli hibernates inside rotten wood of Corylus avellana
Remarks: Other: uncertain

Foodplant / open feeder
larva of Altica brevicollis grazes on leaf of Corylus avellana

Foodplant / roller
larva of Apoderus coryli rolls leaf of Corylus avellana

In Great Britain and/or Ireland:
Foodplant / pathogen
Armillaria mellea s.l. infects and damages Corylus avellana

Foodplant / spot causer
hypophyllous, subcuticular, often in large irregular groups acervulus of Asteroma coelomycetous anamorph of Asteroma coryli causes spots on fading leaf of Corylus avellana
Remarks: season: 9-11

Foodplant / roller
larva of Byctiscus betulae rolls leaf (several leaves) of Corylus avellana
Other: major host/prey

Plant / associate
adult of Campyloneura virgula is associated with Corylus avellana
Remarks: season: 7-10
Other: major host/prey

Foodplant / sap sucker
adult of Compsidolon salicellus sucks sap of Corylus avellana
Remarks: season: 7-10

Foodplant / mobile cased feeder
larva of Cryptocephalus coryli grazes in mobile case on fallen catkin of Corylus avellana
Remarks: captive: in captivity, culture, or experimentally induced

Foodplant / mobile cased feeder
larva of Cryptocephalus labiatus grazes in mobile case on leaf of Corylus avellana

Foodplant / open feeder
adult of Cryptocephalus nitidulus grazes on live leaf of sapling of Corylus avellana
Remarks: season: early 5-9

Foodplant / open feeder
adult of Cryptocephalus primarius grazes on live petal of Corylus avellana
Remarks: season: 5-6
captive: in captivity, culture, or experimentally induced

Foodplant / open feeder
adult of Cryptocephalus sexpunctatus grazes on pollen of Corylus avellana
Remarks: season: 5-7
Other: uncertain

Foodplant / internal feeder
larva of Curculio nucum feeds within live nut (kernel) of Corylus avellana

Foodplant / roller
larva of Deporaus betulae rolls leaf of Corylus avellana

Foodplant / saprobe
perithecium of Diaporthe conjuncta is saprobic on dead Corylus avellana

Foodplant / saprobe
erumpent conidioma of Phomopsis coelomycetous anamorph of Diaporthe revellens is saprobic on dead nut of Corylus avellana
Remarks: season: 2-5
Other: minor host/prey

Foodplant / saprobe
fruitbody of Dichomitus campestris is saprobic on dead, white-rotten, attached branch of Corylus avellana
Other: major host/prey

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

Foodplant / saprobe
effuse colony of Diplococcium dematiaceous anamorph of Diplococcium lawrencei is saprobic on rotten wood of Corylus avellana

Foodplant / internal feeder
larva of Dryocoetinus alni feeds within cambium of Corylus avellana

Foodplant / sap sucker
adult of Elasmostethus interstinctus sucks sap of Corylus avellana
Other: minor host/prey

Foodplant / gall
Eriophyes avellanae causes gall of live bud of Corylus avellana

Foodplant / feeds on
Gonioctena pallida feeds on Corylus avellana

Foodplant / open feeder
gregarious larva of Hemichroa crocea grazes on leaf of Corylus avellana

Plant / associate
fruitbody of Hypocreopsis rhododendri is associated with dead, fallen branch of Corylus avellana

Plant / associate
larva of Hypulus quercinus is associated with red rotten wood of Corylus avellana

Foodplant / open feeder
larva of Luperus flavipes grazes on leaf of Corylus avellana

Foodplant / feeds on
Malacocoris chlorizans feeds on Corylus avellana
Other: minor host/prey

Foodplant / hemiparasite
Melampyrum sylvaticum is hemiparasitic on root of Corylus avellana

Foodplant / saprobe
sessile, densely clustered, erumpent apothecium of Mollisia caespiticia is saprobic on dead, corticate branch of Corylus avellana

Foodplant / pathogen
Monilinia fructigena infects and damages live nut of Corylus avellana

Plant / associate
mycelial muff of tree of Morchella esculenta is associated with live root of Corylus avellana
Other: major host/prey

Foodplant / saprobe
fruitbody of Mycoacia uda is saprobic on dead, fallen, decayed, white rotted wood of Corylus avellana

Foodplant / open feeder
larva of Nematinus acuminatus grazes on leaf of Corylus avellana
Other: unusual host/prey

Plant / associate
Orthotylus prasinus is associated with Corylus avellana
Other: minor host/prey

Foodplant / feeds on
nymph of Orthotylus tenellus feeds on catkin of Corylus avellana

Foodplant / sap sucker
Palomena prasina sucks sap of Corylus avellana

Foodplant / roller
larva of Pamphilius fumipennis rolls leaf of Corylus avellana
Other: sole host/prey

Foodplant / sap sucker
Pentatoma rufipes sucks sap of Corylus avellana
Other: minor host/prey

Foodplant / saprobe
fruitbody of Phellinus lundellii is saprobic on dead, decayed wood of Corylus avellana
Remarks: Other: uncertain

Foodplant / parasite
hypophyllous Phyllactinia guttata parasitises live flower of Corylus avellana

Foodplant / spot causer
pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta coryli causes spots on live leaf of Corylus avellana
Remarks: season: 7

Plant / associate
nymph of Phylus coryli is associated with Corylus avellana
Remarks: season: late 5-end 6

Foodplant / spot causer
subcuticular acervulus of Piggotia coelomycetous anamorph of Piggotia coryli causes spots on live leaf of Corylus avellana
Remarks: season: 7-11

Foodplant / feeds on
larva of Rhynchaenus avellanae feeds on Corylus avellana

Fungus / feeder
Sciurus carolinensis feeds on fruit of Corylus avellana

Foodplant / feeds on
Sciurus vulgaris feeds on fruit of Corylus avellana

Foodplant / open feeder
adult of Smaragdina affinis grazes on leaf? of Corylus avellana
Remarks: season: 5-6
Other: major host/prey

Plant / associate
Strophosoma melanogrammum is associated with Corylus avellana

Foodplant / feeds on
Tachyerges stigma feeds on Corylus avellana

Foodplant / open feeder
nocturnal larva of Tenthredo fagi grazes on leaf of Corylus avellana

Foodplant / internal feeder
larva of Trachys minuta feeds within wood of Corylus avellana

Foodplant / internal feeder
larva of Triotemnus coryli feeds within cambium of Corylus avellana

Foodplant / saprobe
erumpent stroma of Cytospora coelomycetous anamorph of Valsa ceratosperma is saprobic on branch of Corylus avellana
Remarks: season: 11-3

Foodplant / saprobe
effuse colony of Veronaea dematiaceous anamorph of Veronaea botryosa is saprobic on wood of Corylus avellana