Downy Mildew Update - 5/1/2011

The damaging effect of Downy Mildew, from secondary events in November and early December, can be seen on bunches.

In McLaren Vale, where damage is very low, some early estimates put the crop loss at 2%. For fruit that is worth $1000 per tonne @ 4 tonne to the acre this is a reduction in gross profit of $100 per acre.

Above- Infection on flowers at Berry Set (EL 29) in the Adelaide Hills. This region has sporadic damage, some vineyards have very significant crop losses, while others have much less damage.


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