Thursday, January 13, 2011

Downy Mildew - UPDATE 13/1/2011

Oilspots on a fresh leaf in the Adelaide Hills.
Adelaide Hills, Langhorne Creek and McLaren Vale vineyards have experienced a Downy Mildew Secondary Event, warm wet night on the 13th and 14th of January. This is the 6th Downy Event of the year. We have seen fresh spores and down on the backs of oilspots.


Growers will have to keep their vineyards covered with a Downy Mildew Protectant Fungicide as close as possible to harvest.

1) 10:10:24 Primary Event – 30th October - This was confirmed by the finding of Oilspots from this 10:10:24 Event in mid-November.

2) & 3) Two Downy Mildew Secondary Events (Warm, Wet Nights) 12th and 14th of November.

4) One Downy Mildew Secondary Event (Warm, Wet Night) - 24th of November.

5) One Downy Mildew Secondary Event (Warm, Wet Night)- 7th of December.

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