好像平原上也有。在中西部上学的时候，农学系的果园就有一大片pecan树，树干上倒扣着金属环防松鼠的。

来源: ROA001 于 2024-01-30 13:55:54 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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