winterkill

/ˈwɪntərˌkɪl/
noun
  1. The death of plants, animals, or fish caused by winter weather conditions.
    • Winterkill can be a serious problem for beekeepers in cold climates.
    • The farmer assessed the winterkill in his wheat fields after the snow melted.
    • The lake's winterkill left hundreds of dead fish along the shore.
verb
  1. To kill (plants, animals, or fish) by exposure to winter cold or harsh conditions.
    • The sudden freeze winterkilled most of the young apple trees in the orchard.
    • Many fish in the shallow pond winterkill when the ice cuts off oxygen.
    • If we don't cover the garden, the frost will winterkill the lettuce.