|
bulb base (white mycelial-coated) |
white mycelial-coated bulb base may be infected and damaged by numerous sclerotium |
Sclerotium cepivorum - a fungus (Agaricales: Typhulaceae) |
|
Ellis, M.B. & J.P., 1997 [Leaves wilt and turn yellow. "Onion White Rot".] |
|
bulb |
bulb may house puparium |
Phytomyza gymnostoma - Allium Leaf-miner (Diptera: Agromyzidae) |
|
DEFRA Plant Pest Notice - 35: http://www.defra.gov.uk/planth/pestnote/allium-notice.pdf |
|
leaf (base) (live) |
live leaf (base) may be infected and damaged by colony of Botrytis dematiaceous anamorph |
Botrytis aclada - a dematiaceous anamorphic fungus (Helotiales: Sclerotiniaceae) |
|
Ellis, M.B. & J.P., 1997 |
|
leaf (lower parts) |
leaf (lower parts) is mined by larva |
Delia platura - a fly (Diptera: Anthomyiidae) |
|
Robbins, R., 1990 [on young cultivated plants] |
|
leaf-base |
leaf-base may house puparium |
Phytomyza gymnostoma - Allium Leaf-miner (Diptera: Agromyzidae) |
|
DEFRA Plant Pest Notice - 35: http://www.defra.gov.uk/planth/pestnote/allium-notice.pdf |
|
leaf-mine (end of) |
leaf-mine (end of) may house puparium |
Chromatomyia horticola - a leaf-mining fly (Diptera: Agromyzidae) |
|
Spencer, K.A., 1972 |
|
leaf |
leaf is mined by larva |
Chromatomyia horticola - a leaf-mining fly (Diptera: Agromyzidae) |
|
Spencer, K.A., 1972 [mine linear, whitish, both upper and lower surface] |
|
leaf |
leaf is mined by larva |
Phytomyza gymnostoma - Allium Leaf-miner (Diptera: Agromyzidae) |
|
DEFRA Plant Pest Notice - 35: http://www.defra.gov.uk/planth/pestnote/allium-notice.pdf |
|
leaf |
leaf is mined by larva |
Scaptomyza pallida - a fruit fly (Diptera: Drosophilidae) |
|
Robbins, R., 1990 [a narrow corridor along or across the leaf, suddenly enlarging into a blotch. Pupariates internally or externally.] |
|
pollen |
pollen is collected to provision nest of female |
Hylaeus punctulatissima - a solitary bee (Hymenoptera: Colletidae) |
|
Macdonald, M.A., in prep. |
|
root (white mycelial-coated) |
white mycelial-coated root may be infected and damaged by numerous sclerotium |
Sclerotium cepivorum - a fungus (Agaricales: Typhulaceae) |
|
Ellis, M.B. & J.P., 1997 [Leaves wilt and turn yellow. "Onion White Rot".] |