Powdery Mildew
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Most rapid growth approximately between 18 and 30 C.
To a lesser extent, the greater the humidity, the faster the growth rate. Most susceptible from bloom to shortly after fruit set. Always maintain as open canopy. I have obtained good production with Marquette with as little as 12 to 14 leaves per 2 clusters of berries. Reccomended the year after a serious infestation. |