this post was submitted on 16 Dec 2024
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Pheromones from tiny beetles could help save Minnesota’s tamarack trees (www.startribune.com)
submitted 1 day ago by silence7 to c/climate
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The reason for the outbreak, Aukema’s lab found, is that the winters had become shorter and less severe. The beetles here at the very southern range of the boreal forest now have just enough warm days between deep freezes to reproduce multiple times. Healthy tamaracks can typically fend off one generation of young larvae. But they’re defenseless against two or more.

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[–] ODGreen 2 points 18 hours ago

Not the tamaracks! They're such an icon of the Boreal forest. Hoping the treatment works.

[–] voicesarefree@lemmy.world 4 points 23 hours ago

Hopefully the pheromone treatment works and is an enduring fix. Incredible that only ~20% of the trees remain in MN after ~20 years.