NDLI: Stem application of metalaxyl for the protection of Vitis vinifera L. ('Riesling') leaves and grapes against downy mildew (Plasmopara viticola)

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Stem application of metalaxyl for the protection of Vitis vinifera L. ('Riesling') leaves and grapes against downy mildew (Plasmopara viticola)

Content Provider	Semantic Scholar
Author	Düker, Andreas Kubiak, Roland
Copyright Year	2009
Abstract	The direct application of plant protective agents into tree xylem is an ecologically sound method of plant protection, which has already been used for trees in urban environements. In order to make this system viable for grapevines ( Vitis ), the effectiveness of the protective system must be ensured. In the first experiment, the effect of the fungicide agents dimethomorph, fosetyl-al, iprovalicarb and metalaxyl applied to the stem of field-grown grapevines was investigated. As a result, injection experiments using non-formulated metalaxyl showed the desired protective effects against downy mildew ( Plasmopora viticola ). In the second experiment, non-formulated metalaxyl was applied several times in succession over a period of several weeks to the xylem of test grapevines using an injection system, affixed long-term to the vine stems. Grapevines sprayed with formulated metalaxyl (Fonganil Gold®) enabled the methods to be compared. The efficiency factors with regard to the control of downy mildew in leaves and grapes were very similar in both approaches, with values of practical relevance of over 70 %.
Starting Page	43
Ending Page	48
Page Count	6
File Format	PDF HTM / HTML
Volume Number	48
Alternate Webpage(s)	https://www.vitis-vea.de/admin/volltext/w1%2009%20530.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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