Journal für Kulturpflanzen - Journal of Cultivated Plants (2013) 65, 50-59

Thomas Nothnagel, Reiner Krämer, Lutz Schreyer and Frank Rabenstein (2013)
Untersuchungen zum Auftreten von Braunverfärbungen bei Spargel ( Asparagus officinalis L.) unter besonderer Berücksichtigung des Befalls mit Fusarium spp. und Viren in Spargelanlagen Sachsen-Anhalts
[Investigation of brown asparagus spears with specific consideration of Fusarium and virus infections in asparagus plantations of Saxony-Anhalt]
Journal für Kulturpflanzen - Journal of Cultivated Plants 65 (2), 50-59
Abstract: Asparagus producers report about increasing asparagus browning of spears in the field. The reason is unknown. Contrary, a general strong infestation of asparagus with Fusarium spp. and viruses, especially the Asparagus virus 1 (AV-1) is known. The recent study was carried out to investigate the status quo of asparagus browning, infestation with Fusarium spp. and viruses within asparagus plantation in Saxony-Anhalt. A total of 429 spears obtained from 14 companies, 27 plantations and 7 asparagus cultivars were investigated. 60.4% of spears have been shown symptoms of browning and 28.4% Fusarium spp. after in vitro incubation. In 92.8% of spears AV-1 was observed via ELISA, in 31.9% the Asparagus virus 2 (AV-2) and in 84.6% the Cucumber mosaic virus CMV. The Arabis mosaic virus (ArMV) was detected in 3.5% of spears only, the Tobacco streak virus (TSV) in none of spears. Merely 2 spears (0.5%) were free of virus. Differences in the level of infestation were observed between the plantations but not between cultivars. Possible relations between the different diseases investigated are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cucumber mosaic virus	Asparagus (Asparagus officinalis)	Germany
	Nepovirus arabis	Asparagus (Asparagus officinalis)	Germany
	Asparagus virus 2	Asparagus (Asparagus officinalis)	Germany
	Asparagus virus 1	Asparagus (Asparagus officinalis)	Germany