BioImages: The Virtual Field-Guide (UK)

Pyrus (pears)

Subtaxa

Rank	Taxon
Aggregate	Pyrus communis sens. lat. (pear)	22

Suggested Literature

Pyrus may be covered by literature listed under:

Feeding and other inter-species relationships

Associated with Pyrus:

		is associate of	Magdalis cerasi - a weevil (Coleoptera: Curculionidae)		Bullock, J.A., 1992
	bark (cankered)	cankered bark may be infected and damaged by erumpent, clustered apothecium	Pezicula corticola - a discomycete (Helotiales: Dermateaceae)		Ellis, M.B. & J.P., 1997
	bark (cankered)	cankered bark may be infected and damaged by conidioma of Cryptosporiopsis coelomycetous anamorph	Pezicula corticola - a discomycete (Helotiales: Dermateaceae)		Ellis, M.B. & J.P., 1997
	branch (dead)	dead branch is decayed by erumpent stroma	Potebniamyces pyri - a discomycete (Rhytismatales: Rhytismataceae)		Ellis, M.B. & J.P., 1997
	branch (dead)	dead branch is decayed by conidioma of Phacidiopsis anamorph	Potebniamyces pyri - a discomycete (Rhytismatales: Rhytismataceae)		Ellis, M.B. & J.P., 1997
	branch (dead)	dead branch is decayed by immersed, stromatic, solitary or in small groups perithecium	Potebniamyces pyri - a discomycete (Rhytismatales: Rhytismataceae)		Ellis, M.B. & J.P., 1997
	branch (dead)	dead branch is decayed by Nodulisporium anamorph	Hypoxylon multiforme - Birch Woodwart (Xylariales: Xylariaceae)		Ellis, M.B. & J.P., 1997
	branch (dead, corticate)	dead, corticate branch is decayed by erumpent stroma	Hypoxylon multiforme - Birch Woodwart (Xylariales: Xylariaceae)		Ellis, M.B. & J.P., 1997
	branch (dead, decorticate)	dead, decorticate branch is decayed by effuse stroma	Hypoxylon multiforme - Birch Woodwart (Xylariales: Xylariaceae)		Ellis, M.B. & J.P., 1997
	bud (vegetative)	bud (vegetative) may contain larva	Rhynchites longiceps - a leafroller weevil (Coleoptera: Rhynchitidae)		Morris, M.G., 1990
	bud scale (live)	live bud scale may be infected and damaged by colony of Fusicladium dematiaceous anamorph	Venturia pyrina - an ascomycete (Pleosporales: Venturiaceae)		Ellis, M.B. & J.P., 1997 ["Pear Scab"]
	cambium of dead twig (below)	below cambium of dead twig is mined by larva	Magdalis barbicornis - Pear Weevil (Coleoptera: Curculionidae)		Morris, M.G., 2002
	cambium	cambium may contain larva	Scolytus mali - Large Fruit Bark Beetle (Coleoptera: Curculionidae)		Bullock, J.A., 1992
	cambium	cambium may contain larva	Scolytus rugulosus - Fruit Bark Beetle (Coleoptera: Curculionidae)		Bullock, J.A., 1992
	flower (live)	live flower may be infected and damaged by colony of Fusicladium dematiaceous anamorph	Venturia pyrina - an ascomycete (Pleosporales: Venturiaceae)		Ellis, M.B. & J.P., 1997 ["Pear Scab"]
	fruit (live)	live fruit may be infected and damaged by colony of Fusicladium dematiaceous anamorph	Venturia pyrina - an ascomycete (Pleosporales: Venturiaceae)		Ellis, M.B. & J.P., 1997 ["Pear Scab"]
	fruit (young)	young fruit is galled by	Contarinia pyrivora - a gall midge (Diptera: Cecidomyiidae)		Stubbs, F.B. (Editor), 1986
	leaf (dead, fallen, overwintered, rotting)	dead, fallen, overwintered, rotting leaf is decayed by immersed pseudothecium	Venturia pyrina - an ascomycete (Pleosporales: Venturiaceae)		Ellis, M.B. & J.P., 1997 ["Pear Scab"]
	leaf (dry)	dry leaf is decayed by hypophyllous, densely gregarious, immersed or part erumpent pseudothecium	Mycosphaerella pyri - an ascomycete (Mycosphaerellales: Mycosphaerellaceae)		Ellis, M.B. & J.P., 1997
	leaf (live)	live leaf may be infected and damaged by colony of Fusicladium dematiaceous anamorph	Venturia pyrina - an ascomycete (Pleosporales: Venturiaceae)		Ellis, M.B. & J.P., 1997 ["Pear Scab"]
	leaf (live)	live leaf is spotted by epiphyllous, immersed pycnidium of Phoma coelomycetous anamorph	Mycosphaerella pomi - an ascomycete (Mycosphaerellales: Mycosphaerellaceae)		Ellis, M.B. & J.P., 1997 [causing ochraceous or greyish-brown spots 2-6mm diam, with dark brown borders]
	leaf (live, blistered)	live, blistered leaf may be infected and damaged by infection	Taphrina bullata - a tongue fungus (Taphrinales: Taphrinaceae)		Ellis, M.B. & J.P., 1997 [causes blister-like spots]
	leaf	leaf is galled by	Eriophyes pyri - a gall mite (Tarsonemoidea: Eriophyidae)		Stubbs, F.B. (Editor), 1986
	leaf	leaf is galled by larva	Dasineura pyri - a gall midge (Diptera: Cecidomyiidae)		Stubbs, F.B. (Editor), 1986
	leaf	leaf is grazed by larva	Caliroa cerasi - Pear And Cherry Slug Sawfly (Hymenoptera: Tenthredinidae)		Benson, R.B., 1952 [skeletonises the leaf, leaving one cuticle intact]
	leaf	leaf is grazed by larva	Priophorus pallipes - a sawfly (Hymenoptera: Tenthredinidae)		Benson, R.B., 1958
	leaf	leaf is spotted by amphigenous, erumpent pseudothecium	Mycosphaerella pyri - an ascomycete (Mycosphaerellales: Mycosphaerellaceae)		Ellis, M.B. & J.P., 1997 [causing small flecks]
	root (dead)	dead root is decayed by fruitbody	Grifola frondosa - Hen Of The Woods (Polyporales: Meripilaceae)		Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005 [weakly parasitic then saprobic]
	root (live)	live root is parasitised by fruitbody	Grifola frondosa - Hen Of The Woods (Polyporales: Meripilaceae)		Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005 [weakly parasitic then saprobic]
	shoot (decaying)	decaying shoot may contain larva	Rhynchites caeruleus - Apple Twig Cutter, Twig Cutting Weevil (Coleoptera: Rhynchitidae)		Morris, M.G., 1990
	twig (dead)	dead twig is decayed by long covered, but eventually erumpent through fissure conidioma of Phomopsis coelomycetous anamorph	Diaporthe eres - a pyrenomycete (Diaporthales: Valsaceae)		Ellis, M.B. & J.P., 1997
	wood	wood is decayed by immersed, often loosely grouped perithecium	Diaporthe eres - a pyrenomycete (Diaporthales: Valsaceae)		Ellis, M.B. & J.P., 1997 [immersed in wood with necks emerging through the bark]

Pyrus may be associated with more taxa listed at higher taxonomic level

References