Cold Hardiness and Disease Resistance
Some V. riparia vines have been known to withstand temperatures as low as -57 °C (−70 °F). The foliage is typically resistant to mildew and black rot, and the roots resistant to phylloxera. The berries however, are often sensitive to mildew and black rot if the vine is exposed to prolonged wet and humid conditions.
Read more about this topic: Vitis Riparia
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