Bug Bites in Southern Ontario – What you need to know!

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1. Know Your Pests: What’s Dangerous in Southern Ontario?

  • Blacklegged (“deer”) ticks — can carry Lyme disease; early symptoms include fever, headache, fatigue, joint pain, and an expanding red rash (often a “bull’s-eye”).
  • Mosquitoes — while most bites are just itchy annoyances, some species can potentially spread West Nile virus; symptoms to monitor include flu-like signs after a bite.
  • Horse flies — aggressive and painful biters; in rare cases can cause serious allergic reactions or transmit tularemia (a bacterial infection).

2. Prevention Tips & Tricks

  • Dress smart: Wear light-colored, tightly woven clothing, long sleeves, pants, socks—and tuck your pant legs into your socks to keep ticks at bay.
  • Use repellents correctly:
    • Apply DEET (20–30%) to exposed skin. If using sunscreen, apply it first, let it dry, then apply repellent.
    • Pre-treat clothing with a bug spray with DEET prior to wearing
    • Use pet-safe repellent on your pets. Don’t forget – they can be bit too!
  • Camp smart:
    • Avoid shady, moist areas and water edges where biting insects thrive.
    • Use citronella or bug nets, and enjoy your campfire—smoke helps keep bugs away (always check fire bans first).
  • Home base prep: Remove standing water and keep vegetation trimmed to reduce mosquito breeding around your campsite or property.

3. First Aid & Aftercare

  • Ticks:
    • Perform daily “tick checks” after being outdoors—especially around armpits, groin, hairline, and behind knees.
    • To remove: use fine-tipped tweezers, grasp close to skin, pull upward steadily—don’t twist, then wash with soap and water.
    • Ensure any pets tagging along are up to date on their flea and tick medications.
  • Bites or mild stings:
    • Clean the area, apply a cold compress to reduce swelling, and take antihistamines or use hydrocortisone/calamine to soothe itching.
  • Severe reactions:
    • Watch for signs of anaphylaxis—difficulty breathing, swelling of lips/throat, dizziness. Seek emergency help immediately.
  • Horse fly bites:
    • These bites are painful; treat them similarly—clean, cool, and monitor for infection or severe allergic reaction—tularemia is rare but treatable with antibiotics.

4. Quick Summary

Bug TypeRisksPrevention Tips
Deer TicksLyme disease, rashClothing, permethrin, daily checks, prompt removal, pets up-to-date on their flea and tick medications
MosquitoesItchiness, possible virusRepellent, avoided zones, reduce standing water
Horse FliesPainful, allergic reactionsProtective clothing, repellent, avoid breeding areas

Stay safe and bite-free during your next adventure! Knowledge and preparation are your best defences.

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