Plants: From Roots to Riches - Battling Bark and Beetle - ÃÛÑ¿´«Ã½ Sounds

Plants: From Roots to Riches - Battling Bark and Beetle - ÃÛÑ¿´«Ã½ Sounds


Battling Bark and Beetle

Kathy Willis examines the origin and impact of Dutch elm disease across Europe.

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