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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Evergreen Trees and Shrubs > Larch / Tamarack > Parts of needles missing

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Larch / Tamarack > Parts of needles missing

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  • Image: Larch sawfly 1
  • Image: Larch sawfly 2

Larch sawfly
Pristiphora erichsonii

  • Larvae consume needles starting in June.
  • Larvae are green with a black head, just over ½ inch long
  • All Minnesota Larch species are susceptible
  • More information on Larch sawfly

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