Now, the varroa mite is what changed the game in beekeeping, and you can see, at the top right, the years are changing, we're coming up to modern times, and you can see the spread of the varroa mite from the early 1900s through now.
你可以看见，蜜蜂蟹螨的来临完全改变了蜂群现况 在右上角的数字显示年代 慢慢移动，进入到现代 你可以清楚看见蜜蜂蟹螨 从1900年代至今的入侵速度