Outdoor Hazards In Wisconsin: A Guide To Insects, Plants And Wildlife

Published by the University of Wisconsin-Madison Division of Extension, this guide will help you recognize, avoid and handle potential problems caused by wildlife, insects or plants.


  • Amphibians (salamanders, toads)
  • Reptiles (turtles, snakes)
  • Birds (defending territory, handling birds)
  • Mammals (short-tailed shrews, bats, skunks, porcupines, coyotes, gray wolves, deer, black bears)
  • Stinging insects (bees and wasps)
  • Blood-feeding insects (mosquitoes, deerflies and horseflies, blackflies, biting midges, ticks, chiggers)

  • Plants that are poisonous when ingested (poison hemlock, spotted water hemlock, bittersweet nightshade, black nightshade, jimsonweed)
  • Plants that are poisonous on contact (poison ivy, poison sumac, wild parsnip, stinging nettle)
  • Plants that cause hay fever (common ragweed, giant ragweed)
  • Thorny, barbed plants (bull thistle, beggarticks, burdock, cocklebur, sandbur)
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