On Dec 7, 2010, at 8:53 AM, Mark Angermayer wrote:
On Dec 7, 2010, at 9:11 AM, Ginda Fisher wrote:
Maybe the leaves on older canes/vines shade the trellis, so it doesn't get as hot where the plants are actually touching the metal? New vegetable transplants that are set out in black plastic mulch can burn if the new plants touch the mulch in hot weather; but older plants shade the plastic, and it doesn't get anywhere near as hot. It's also possible that the tough bark of older canes may be adapted to quite a bit of heat (and of course cold). -- Rivka; Finger Lakes NY, Zone 5 mostly Fresh-market organic produce, small scale |
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