Monday, November 17, 2008

Latest Powdery Mildew Finds - UPDATE 17/11/2008

Powdery mildew flagshoot.
Powdery mildew on a developing bunch.

Weather conditions are good for the spread of Powdery Mildew. Powdery does best in overcast and warm weather. Shady canopies in Shiraz and Chardonnay further assist the spread of the disease.

Many hours during recent days and nights have had temperatures between 20 - 28C - this means that the temperature for powdery has been ideal favouring maximum production of spores.

1 comment:

Adam said...

The powdery mildew fungus that parasitized Treasure Valley hop plants for the first time last summer has resurfaced in a Roswell-area hop yard. If it reaches destructive levels, it will once again demand frequent and profit-draining pesticide treatments.
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Adam

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