Back in the recession-era 1970s my friends and I used to tromp through Seattle's overgrown vacant lots and abandoned rail corridors in search of blackberries, a prized summer treat. In the last decade, as Zachary Falck points out in the conclusion of his deeply researched book, Weeds: An Environmental History of Metropolitan America, my sweet berries have become a menace. Seattleites have started to eradicate invasive species like my Himalayan blackberries with unmatched zeal.
展开▼