| Affected Part |
|
Summary |
|
|
Taxon |
Vernacular |
Classification |
References |
Darwin Classification of Active Taxon |
Active Taxon |
Active Vernacular |
Active Taxon Uncertain |
Active State |
Active Part |
Active Stage |
Relationship |
Relationship Uncertain |
Relationship Geography |
Darwin Classification of Passive Taxon |
Passive Taxon |
Passive Vernacular |
Passive Taxon Uncertain |
Passive State |
Passive Part |
Passive Stage |
Passive Taxon's significance to Active Taxon |
Indoors etc |
Season |
Summary |
|
|
may be infected and damaged by colony |
|
|
Erwinia carotovora |
Bacterial Soft Rot |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Erwinia carotovora/ | Erwinia carotovora | bacterial soft rot | | | | colony |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | | | |
| | colony infects and damages |
|
|
has sap sucked by |
|
|
Myzus persicae |
Peach-potato Aphid |
Hemiptera: Aphididae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Myzus (Nectarosiphon) persicae/ | Myzus (Nectarosiphon) persicae | peach-potato aphid | | | | |
Foodplant / sap sucker | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | | | |
| | sucks sap of |
|
|
seedling may be infected and damaged by Botrytis dematiaceous anamorph |
|
 |
Botrytis cinerea |
Grey Mould |
Helotiales: Sclerotiniaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botrytis cinerea/ | Botrytis cinerea | grey mould | | | | Botrytis dematiaceous anamorph |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | | seedling | |
| | Botrytis dematiaceous anamorph infects and damages seedling |
|
|
may be infected and damaged by pale green or mottled, often blistered or crinkly |
|
|
Cucumber Mosaic virus |
a phytopathogenic virus |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Cucumber Mosaic virus/ | Cucumber Mosaic virus | a phytopathogenic virus | | pale green or mottled, often blistered or crinkly | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | | | |
| | pale green or mottled, often blistered or crinkly infects and damages |
|
|
esp. over-wintered may be infected and damaged by pale green or mottled, often blistered or crinkly |
|
|
Lettuce Mosaic virus |
a phytopathogenic virus |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Lettuce Mosaic virus/ | Lettuce Mosaic virus | a phytopathogenic virus | | pale green or mottled, often blistered or crinkly | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | | esp. over-wintered | |
| (spring) | pale green or mottled, often blistered or crinkly infects and damages esp. over-wintered |
| (dead) |
|
dead is decayed by effuse colony of Stemphylium dematiaceous anamorph |
|
|
Stemphylium vesicarium |
an ascomycete |
Pleosporales: Pleosporaceae |
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Dothideomycetes/Pleosporales/Pleosporaceae/Stemphylium vesicarium/ | Stemphylium vesicarium | an ascomycete | | effuse | colony | Stemphylium dematiaceous anamorph |
Foodplant / saprobe | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | dead | | | |
| | effuse colony of Stemphylium dematiaceous anamorph is saprobic on dead |
| (live) |
|
live is parasitised by |
 |
|
Golovinomyces cichoracearum |
a powdery mildew |
Erysiphales: Erysiphaceae |
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
An Introduction to British Powdery Mildews, Ing, B., 1990
|
/Fungi/Ascomycota/Leotiomycetes/Erysiphales/Erysiphaceae/Golovinomyces cichoracearum/ | Golovinomyces cichoracearum | a powdery mildew | | | | |
Foodplant / parasite | | UK and/or Eire |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | | | |
| | parasitises live |
| (wilted) |
|
wilted may be infected and damaged by |
|
|
Pythium tracheiphilum |
a damping off fungus |
Peronosporales: Pythiaceae |
Pythium tracheiphilum, Hall, G., 1991
|
/Chromista/Oomycota/Peronosporea/Peronosporales/Pythiaceae/Pythium tracheiphilum/ | Pythium tracheiphilum | a damping off fungus | | | | |
Foodplant / pathogen | | UK and/or Eire |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | wilted | | | |
| | infects and damages wilted |
| capitulum |
|
capitulum may contain larva |
  |
|
Trupanea amoena |
a gall fly |
Diptera: Tephritidae |
Tephritid Flies (Diptera: Tephritidae), White, I.M., 1988
|
/Animalia/Arthropoda/Insecta/Diptera/Tephritidae/Trupanea amoena/ | Trupanea amoena | a gall fly | | | | larva |
Foodplant / internal feeder | | Foreign |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | ? | | capitulum | | |
| | larva feeds within capitulum |
| leaf (edge) (live, shrivelled) |
|
live, shrivelled leaf (edge) is spotted by colony |
|
|
Pseudomonas marginalis |
Lettuce Marginal Leaf Spot - causative organism |
Pseudomonadales: Pseudomonadaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Proteobacteria/Gammaproteobacteria/Pseudomonadales/Pseudomonadaceae/Pseudomonas marginalis/ | Pseudomonas marginalis | lettuce marginal leaf spot (causative organism) | | | colony | |
Foodplant / spot causer | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live, shrivelled | leaf (edge) | | |
| | colony causes spots on live, shrivelled leaf (edge) |
| leaf (outer) esp near base (pale yellow or whitish vein banding) |
|
pale yellow or whitish vein banding leaf (outer) esp near base may be infected and damaged by |
|
|
Lettuce Big-vein |
a phytopathogenic graft-transmissible agent |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Lettuce Big-vein/ | Lettuce Big-vein | a phytopathogenic graft-transmissible agent | | | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | pale yellow or whitish vein banding | leaf (outer) esp near base | | |
| | infects and damages pale yellow or whitish vein banding leaf (outer) esp near base |
| leaf (outer) (distorted or bubbled lamina) |
|
distorted or bubbled lamina leaf (outer) may be infected and damaged by |
|
|
Lettuce Big-vein |
a phytopathogenic graft-transmissible agent |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Lettuce Big-vein/ | Lettuce Big-vein | a phytopathogenic graft-transmissible agent | | | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | distorted or bubbled lamina | leaf (outer) | | |
| | infects and damages distorted or bubbled lamina leaf (outer) |
| leaf (outer) (intensely yellow between veins) |
|
intensely yellow between veins leaf (outer) may be infected and damaged by |
|
|
Beet Western Yellows virus |
a phytopathogenic virus |
|
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Beet Western Yellows virus/ | Beet Western Yellows virus | a phytopathogenic virus | | | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | intensely yellow between veins | leaf (outer) | | |
| (summer) | infects and damages intensely yellow between veins leaf (outer) |
| leaf (young) (live, slightly distorted and discoloured) |
|
live, slightly distorted and discoloured leaf (young) has sap sucked by |
|
|
Aulacorthum solani |
Glasshouse and Potato Aphid |
Hemiptera: Aphididae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Aulacorthum (Aulacorthum) solani/ | Aulacorthum (Aulacorthum) solani | glasshouse and potato aphid | | | | |
Foodplant / sap sucker | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live, slightly distorted and discoloured | leaf (young) | | |
| | sucks sap of live, slightly distorted and discoloured leaf (young) |
| leaf |
|
leaf is mined by larva |
|
|
Chromatomyia syngenesiae |
Chrysanthemum Leaf Miner |
Diptera: Agromyzidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Diptera/Agromyzidae/Chromatomyia syngenesiae/ | Chromatomyia syngenesiae | chrysanthemum leaf miner | | | | larva |
Foodplant / miner | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | leaf | | |
| | larva mines leaf |
| leaf (live, mainly outer) |
|
live, mainly outer leaf is spotted by mostly hypophyllous colony of sporangium |
  |
|
Bremia lactucae s. lat. |
Lettuce Downy Mildew |
Peronosporales: Peronosporaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
British Parasitic Fungi, Moore, W.C., 1959
A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002
|
/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Bremia lactucae s. lat./ | Bremia lactucae s. lat. | lettuce downy mildew | | mostly hypophyllous | colony | sporangium |
Foodplant / spot causer | | UK and/or Eire |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live, mainly outer | leaf | | Major |
Indoors, in greenhouse, captivity, culture or experimentally induced | (9-10) | mostly hypophyllous colony of sporangium causes spots on live, mainly outer leaf |
| leaf (live) |
|
live leaf is grazed by caterpillar |
|
|
Mamestra brassicae |
Cabbage Moth |
Lepidoptera: Noctuidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Lepidoptera/Noctuidae/Mamestra brassicae/ | Mamestra brassicae | cabbage moth | | | | caterpillar |
Foodplant / open feeder | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | caterpillar grazes on live leaf |
| leaf (live) |
|
live leaf may shelter hypophyllous egg |
|
|
Mamestra brassicae |
Cabbage Moth |
Lepidoptera: Noctuidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Lepidoptera/Noctuidae/Mamestra brassicae/ | Mamestra brassicae | cabbage moth | | hypophyllous | | egg |
Plant / resting place / under | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | hypophyllous egg may be found under live leaf |
| leaf (live) |
|
live leaf is grazed by nocturnal caterpillar |
|
|
Autographa gamma |
Silver Y |
Lepidoptera: Noctuidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Lepidoptera/Noctuidae/Autographa gamma/ | Autographa gamma | silver Y | | nocturnal | | caterpillar |
Foodplant / open feeder | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | nocturnal caterpillar grazes on live leaf |
| leaf (live) |
|
live leaf has sap sucked by |
|
|
Nasonovia ribisnigri |
Currant-lettude Aphid |
Hemiptera: Aphididae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Aphids Recorded on Cultivated Plants in Norway 1946-1962, Fjelddalen, J., 1964
|
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Nasonovia (Nasonovia) ribisnigri/ | Nasonovia (Nasonovia) ribisnigri | currant-lettude aphid | | | | |
Foodplant / sap sucker | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | Major |
| (5-summer, (1-12, under glass) | sucks sap of live leaf |
| leaf (live) |
|
live leaf is spotted by amphigenous colony of Ramularia hyphomycetous anamorph |
|
|
Mycosphaerella hieracii |
an ascomycete |
Capnodiales: Mycosphaerellaceae |
Monograph of Cercosporella, Ramularia and Allied Genera - Vol II, Braun, U., 1998
|
/Fungi/Ascomycota/Dothideomycetes/Capnodiales/Mycosphaerellaceae/Mycosphaerella hieracii/ | Mycosphaerella hieracii | an ascomycete | | amphigenous | colony | Ramularia hyphomycetous anamorph |
Foodplant / spot causer | | Foreign |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | ? | live | leaf | | |
| | amphigenous colony of Ramularia hyphomycetous anamorph causes spots on live leaf |
| leaf (live) |
|
live leaf is spotted by mostly epiphyllous pycnidium of Septoria coelomycetous anamorph |
|
|
Septoria lactucae |
a leaf-spot fungus |
Capnodiales: Mycosphaerellaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Dothideomycetes/Capnodiales/Mycosphaerellaceae/Septoria lactucae/ | Septoria lactucae | a leaf-spot fungus | | mostly epiphyllous | pycnidium | Septoria coelomycetous anamorph |
Foodplant / spot causer | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | mostly epiphyllous pycnidium of Septoria coelomycetous anamorph causes spots on live leaf |
| leaf (live) |
|
live leaf has leaves shot holed by pseudothecium |
|
|
Pleospora herbarum |
an ascomycete |
Pleosporales: Pleosporaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Dothideomycetes/Pleosporales/Pleosporaceae/Pleospora herbarum/ | Pleospora herbarum | an ascomycete | | | | pseudothecium |
Foodplant / shot hole causer | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | pseudothecium causes shot holes on live leaf |
| leaf (live) |
|
live leaf is spotted by pseudothecium |
|
|
Pleospora herbarum |
an ascomycete |
Pleosporales: Pleosporaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Dothideomycetes/Pleosporales/Pleosporaceae/Pleospora herbarum/ | Pleospora herbarum | an ascomycete | | | | pseudothecium |
Foodplant / spot causer | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | pseudothecium causes spots on live leaf |
| leaf (live) |
|
live leaf has leaves shot holed by acervulus of Marssonina coelomycetous anamorph |
|
|
Microdochium panattonianum |
Lettuce Ringspot Disease - causative organism |
Xylariales: Hyponectriaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Fungi of the South East England, Dennis, R.W.G., 1995
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
Infection of Lettuce by Microdochium panattonianum, Galea, V.J. & Price, T.V., 1988
Microdochium panattonianum, Sutton, B.C. & Holderness, M., 1991
|
/Fungi/Ascomycota/Sordariomycetes/Xylariales/Hyponectriaceae/Microdochium panattonianum/ | Microdochium panattonianum | lettuce ringspot disease (causative organism) | | | acervulus | Marssonina coelomycetous anamorph |
Foodplant / shot hole causer | | UK and/or Eire |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | |
| | acervulus of Marssonina coelomycetous anamorph causes shot holes on live leaf |
| leaf (live) |
|
live leaf is parasitised by hypophyllous aecium |
|
|
Puccinia opizii |
Lettuce Rust |
Pucciniales: Pucciniaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia opizii/ | Puccinia opizii | lettuce rust | | hypophyllous | | aecium |
Foodplant / parasite | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | Major |
| | hypophyllous aecium parasitises live leaf |
| leaf (live) |
|
live leaf is parasitised by pycnium |
|
|
Puccinia opizii |
Lettuce Rust |
Pucciniales: Pucciniaceae |
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia opizii/ | Puccinia opizii | lettuce rust | | | | pycnium |
Foodplant / parasite | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | leaf | | Major |
| | pycnium parasitises live leaf |
| leaf (rotten) |
|
rotten leaf may be infected and damaged by Botrytis dematiaceous anamorph |
 |
|
Botrytis cinerea |
Grey Mould |
Helotiales: Sclerotiniaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botrytis cinerea/ | Botrytis cinerea | grey mould | | | | Botrytis dematiaceous anamorph |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | rotten | leaf | | Minor |
| | Botrytis dematiaceous anamorph infects and damages rotten leaf |
| leaves (live, swollen, stunted or malformed) |
|
live, swollen, stunted or malformed leaves may be infected and damaged by |
|
|
Ditylenchus dipsaci |
Stem Eelworm, Stem and Bulb Eelworm |
Rhabditida: Anguinidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Nematoda/Secernentea/Rhabditida/Anguinidae/Ditylenchus dipsaci/ | Ditylenchus dipsaci | stem eelworm, stem and bulb eelworm | | | | |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live, swollen, stunted or malformed | leaves | | |
| | infects and damages live, swollen, stunted or malformed leaves |
| plant (rotting) |
|
rotting plant is decayed by sclerotioid, stalked apothecium |
|
|
Sclerotinia minor |
an ascomycete fungus |
Helotiales: Sclerotiniaceae |
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Sclerotinia minor/ | Sclerotinia minor | an ascomycete fungus | | sclerotioid, stalked | | apothecium |
Foodplant / saprobe | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | rotting | plant | | |
| (6-12) | sclerotioid, stalked apothecium is saprobic on rotting plant |
| plant (rotting) |
|
rotting plant is decayed by sclerotium |
|
|
Sclerotinia minor |
an ascomycete fungus |
Helotiales: Sclerotiniaceae |
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Sclerotinia minor/ | Sclerotinia minor | an ascomycete fungus | | | | sclerotium |
Foodplant / saprobe | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | rotting | plant | | |
| (6-12) | sclerotium is saprobic on rotting plant |
| root |
|
root is galled by |
|
|
Meloidogyne |
root-knot eelworms |
Tylenchida: Meloidogynidae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Nematoda/Secernentea/Tylenchida/Meloidogynidae/Meloidogyne/ | Meloidogyne | root-knot eelworms | | | | |
Foodplant / gall | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | | root | | Major |
| | causes gall of root |
| root (live) |
|
live root is foodplant of subterranean larva |
|
|
Phyllopertha horticola |
Garden Chafer, Field Chafer, Bracken Chafer, Fernshaw Beetle, Chovey, June Bug |
Coleoptera: Scarabaeidae |
Garden chafer - Phyllopertha horticola, Anon., 2008
|
/Animalia/Arthropoda/Insecta/Coleoptera/Scarabaeidae/Phyllopertha horticola/ | Phyllopertha horticola | garden chafer, field chafer, bracken chafer, fernshaw beetle, chovey, June bug | | subterranean | | larva |
Foodplant / feeds on | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | root | | Rare |
| | subterranean larva feeds on live root |
| root (live) |
|
live root has sap sucked by subterranean wingless |
|
|
Pemphigus bursarius |
Lettuce Root Aphid, Purse Gall Aphid, Poplar-lettuce Aphid |
Hemiptera: Aphididae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Aphids Recorded on Cultivated Plants in Norway 1946-1962, Fjelddalen, J., 1964
|
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Pemphigus (Pemphigus) bursarius/ | Pemphigus (Pemphigus) bursarius | lettuce root aphid, purse gall aphid, poplar-lettuce aphid | | subterranean | | wingless |
Foodplant / sap sucker | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | root | | Major |
| | subterranean wingless sucks sap of live root |
| root (live) |
|
live root is parasitised by |
|
|
Olpidiaster brassicae |
a chytridiomycete fungus |
Olpidiales: Olpidiaceae |
Introduction to Fungi, Webster, J., 1980
|
/Fungi/Chytridiomycota/Chytridiomycetes/Olpidiales/Olpidiaceae/Olpidiaster brassicae/ | Olpidiaster brassicae | a chytridiomycete fungus | | | | |
Foodplant / parasite | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | root | | |
| | parasitises live root |
| shoot (young) (live) |
|
live shoot (young) has sap sucked by |
|
|
Macrosiphum euphorbiae |
Potato Aphid |
Hemiptera: Aphididae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
|
/Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Macrosiphum (Macrosiphum) euphorbiae/ | Macrosiphum (Macrosiphum) euphorbiae | potato aphid | | | | |
Foodplant / sap sucker | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | shoot (young) | | |
| | sucks sap of live shoot (young) |
| stem (live) |
|
live stem is spotted by mostly epiphyllous pycnidium of Septoria coelomycetous anamorph |
|
|
Septoria lactucae |
a leaf-spot fungus |
Capnodiales: Mycosphaerellaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Dothideomycetes/Capnodiales/Mycosphaerellaceae/Septoria lactucae/ | Septoria lactucae | a leaf-spot fungus | | mostly epiphyllous | pycnidium | Septoria coelomycetous anamorph |
Foodplant / spot causer | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | live | stem | | |
| | mostly epiphyllous pycnidium of Septoria coelomycetous anamorph causes spots on live stem |
| stem (rotten) |
|
rotten stem may be infected and damaged by Botrytis dematiaceous anamorph |
|
|
Botrytis cinerea |
Grey Mould |
Helotiales: Sclerotiniaceae |
Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997
|
/Fungi/Ascomycota/Leotiomycetes/Helotiales/Sclerotiniaceae/Botrytis cinerea/ | Botrytis cinerea | grey mould | | | | Botrytis dematiaceous anamorph |
Foodplant / pathogen | | |
/Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca sativa/ | Lactuca sativa | garden lettuce | | rotten | stem | | |
| | Botrytis dematiaceous anamorph infects and damages rotten stem |
NBN (data.nbn.org.uk)
has a distribution map for Lactuca sativa (Garden Lettuce)
BioImages (www.bioimages.org.uk)
has 8 images of Lactuca sativa (Garden Lettuce)
