When the garden gets perilous, these pollinators hit the gas. By Cara Giaimo For a human, a breeze-ruffled garden is a peaceful scene: Dandelion seeds float, leaves rustle and flowers bob their heads.

If you’re a bee, a breeze-ruffled garden can be a minefield. For a small creature with delicate wings, airborne seeds, shifting leaves and lurching flowers are basically projectiles, trap doors and ...