Hairydone t1_j0fqo4h wrote
Reply to comment by EpsomHorse in TIL Europe's wine owes its existence to the grafting of vines to American grape root stock that weren't vulnerable to a species of aphid that was destined to wipe the industry out. by salton
The American vines can tolerate the pest. The pest can still exist and survive, it simply won’t kill the vine.
italageordie t1_j0fxbdl wrote
You do see the eggs on the leaves of the American vines when you're trimming them at the beginning of summer. We are always told to tell the boss, but I'm not sure what he does about it.
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