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| Hannukkala, Asko; Lehtinen, Ari; Lindqvist, Bengt. |
| År 2003 startade ett forskningsprojekt, finansierat av Jord- och skogbruksministeriet, vars målsättning är att utveckla för ekologisk produktion lämpliga odlingstekniska metoder samt metoder som ökar odlingshygienen, för att kunna rå på potatisbladmögel och brunröta. Målsättningen är att sammanställa klara direktiv, för odling och åtgärder, med vars hjälp det, från år till år, är möjligt att producera ekologiskt odlad potatis av god kvalitet. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2004 |
URL: http://orgprints.org/11149/1/hannukkala.doc |
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| Lehtinen, Ari; Hannukkala, Asko. |
| There have been numerous indications since the 1990s that oospore-derived primary infections play an increasing role in the epidemiology of potato late blight. The aim of this study was to verify that oosporederived epidemics actually occur in Finland. For this purpose, 20 suspected foci of oospore-derived potato late blight were scouted in 2000–2002. All of these were located in fi elds in which late blight had been observed in at least one of the four previous years. Primary symptoms in these foci occurred always on the lowest leaves near or touching the ground. Leafl ets typically showing numerous primary infections or lesions were in direct contact with the soil. In the former, oospores were observed after incubation. Soil samples from two experimental... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/16753/1/lehtinen.pdf |
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