To kill by the effects of wintery conditions(verb)
To die from the lethal effects of wintery conditions(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "winter-kill" in a sentence
"Harvests can be managed so that they only take the "excess" population before winter-kill brings the population back down to carrying capacity, thus the population level is the same as if there were no sportsmen at all."
"The winter-kill issue is a tough one all the way around, but my comment is more towards the link of "Minn to revamp regs.""
"I just travelled through British Columbia recently to witness first-hand the vast vast destruction of the pine trees there, all due to the inability now of climate to “winter-kill” the voracious pine beetle."