Downy Various Group 33 phosphorous 2L/ha early N/R Not recommended Post-infection only mildew registered fungicides acid season/small for use on grapes as soon as possible (Plasmopara products phosphonates canopies destined for export after the infection event viticola) containing: wines. 2.7–4L/ha and before oil spots 600g/L late season/large appear. phosphorous canopies Wine grapes: It is advised acid present as to contact your winery or the mono and di purchaser prior to the potassium application of any phosponate. phosphorous acid spray. Table grapes: Phosphorus acid products are recommended for control of downy mildew where sprays need to be applied after berries reach 10mm diameter. Other products may leave unsightly residues on the berries through to harvest.
Downy mildew (Plasmopara viticola) Group 33 fungicides phosphonates phosphorous acid Various registered products containing: 600g/L phosphorous acid present as the mono and di potassium phosponate. 2L/ha early season/small canopies 2.7–4L/ha season/large canopies N/R Not recommended for use on grapes destined for export wines. Post-infection only as soon as possible after the infection event and before oil spots appear. Wine grapes: It is advised to contact your winery or purchaser prior to the application of any phosphorous acid spray. Table grapes: Phosphorus acid products are recommended for control of downy mildew where sprays need to be applied after berries reach 10mm diameter. Other products may leave unsightly residues on the berries through to harvest. late
2015-16%20Viticulture%20Spray%20Guide%20%28accessible%20version%29_3.docx