لفت سويدي

Foodplant / gall
Agrobacterium tumefaciens causes gall of stem (esp. base) of Brassica napus ssp rapifera

In Great Britain and/or Ireland:
Foodplant / parasite
colony of Albugo candida parasitises live, discoloured, distorted leaf of Brassica napus ssp rapifera
Remarks: season: spring, early autumn
Other: major host/prey

Foodplant / sap sucker
dense, wet (honeydew) colony of Brevicoryne brassicae sucks sap of live leaf of Brassica napus ssp rapifera
Remarks: season: (7-)9-10...
Other: major host/prey

Foodplant / spot causer
amphigenous colony of Cercosporella anamorph of Cercosporella brassicae causes spots on live leaf of Brassica napus ssp rapifera

Foodplant / pathogen
Ditylenchus dipsaci infects and damages live, swollen, stunted or malformed leaf of Brassica napus ssp rapifera

Foodplant / pathogen
colony of Erwinia carotovora infects and damages root of Brassica napus ssp rapifera
Other: major host/prey

Foodplant / parasite
amphigenous colony of Oidium conidial anamorph of Erysiphe cruciferarum parasitises live leaf of Brassica napus ssp rapifera

Animal / pathogen
Rhizoctonia anamorph of Helicobasidium purpureum infects root of Brassica napus ssp rapifera
Other: major host/prey

Foodplant / pathogen
Leptosphaeria maculans infects and damages live, cankered root (exposed part) of Brassica napus ssp rapifera

Foodplant / saprobe
pseudothecium of Mycosphaerella brassicicola is saprobic on fallen, dead, outer leaf of Brassica napus ssp rapifera

Foodplant / parasite
colony of sporangium of Peronospora parasitica parasitises live Brassica napus ssp rapifera
Remarks: season: 1-4
Other: major host/prey

Foodplant / gall
Plasmodiophora brassicae causes gall of swollen, distorted, often fused root of Brassica napus ssp rapifera
Other: major host/prey

Foodplant / spot causer
amphigenous Pseudocercosporella anamorph of Pseudocercosporella brassicae causes spots on live leaf of Brassica napus ssp rapifera
Other: major host/prey

Foodplant / spot causer
apothecium of Pyrenopeziza brassicae causes spots on live leaf (old) of Brassica napus ssp rapifera

Foodplant / pathogen
colony of Streptomyces infects and damages live twig of Brassica napus ssp rapifera

Foodplant / pathogen
Turnip Mosaic virus infects and damages live, crinkled, stunted leaf (young) of Brassica napus ssp rapifera