Wasp Control in Calgary | How to Get Rid of Wasps Safely and Effectively  

Learn how to identify, prevent, and remove wasp nests safely. Discover expert wasp control tips, natural prevention methods, and when to call professional pest control in Calgary. 

What Are Wasps?

Wasps — including yellow jackets and hornets — are medium-sized stinging insects ranging from 10 to 25 mm (0.39–1 inch) long. They’re easily recognized by distinct black and yellow (or white) bands on their bodies. While some harmless species look similar, social wasps are the most aggressive and can become a serious nuisance around homes and outdoor areas.

Wasps have a hollow stinger at the rear of their body that injects venom into the skin — causing sharp, painful stings. Unlike bees, wasps can sting multiple times, making them more dangerous, especially when provoked.

Social wasps, such as the German yellow jacket, are known for their aggressive behavior and tendency to scavenge in garbage cans and outdoor eating areas.

These insects build paper-like nests from chewed wood fibers mixed with saliva. Nests may be fully enclosed or open, depending on the species, and can appear under eaves, trees, attics, or wall voids.

Why You Should Be Concerned About Wasps

Wasps are one of the most common stinging insects in Calgary and across North America. They become a major problem in late summer and fall, especially during outdoor activities where food and drinks are present.

They’re attracted to:

• Sweet foods and beverages
  
  

• Protein sources (meat, pet food, or garbage)
  
  

• Perfumes and scented sprays
  
  

A single wasp sting can be painful, and multiple stings can cause severe reactions — including swelling, itching, dizziness, or difficulty breathing. In rare cases, allergic reactions (anaphylaxis) can be life-threatening.

🏥 Seek medical help immediately if you experience severe symptoms after a wasp sting.

Although dangerous, wasps also play a beneficial role by feeding on pest insects (like flies and caterpillars) and helping with pollination. They are also a food source for birds, small mammals, and spiders.

What to Do If You’re Stung by a Wasp

If a wasp lands on you — stay calm and don’t swat at it. Sudden movements may provoke an attack. Wait for it to fly away or brush it off gently.

If you’re stung:

1. Apply a cold compress or ice pack to reduce swelling
   
   

2. Make a baking soda paste to neutralize the venom
   
   

3. Avoid scratching the area
   
   

4. If symptoms worsen or you have an allergic reaction, seek medical attention immediately
   
   

How to Prevent and Control Wasps

1. Inspect Early in the Season

Check around your home and yard in early summer for any wasp activity or small nests forming. It’s much easier to remove a single queen nest early than to handle a large colony later.

2. Reduce Food and Waste Attractants

• Keep garbage bins tightly sealed
  
  

• Avoid leaving pet food, fruit, or sugary drinks outside
  
  

• Cover food during outdoor meals
  
  

• Avoid wearing strong perfumes or scented sprays
  
  

• Always wear shoes outdoors, especially in grassy areas
  
  

Wasps are drawn to sugar and protein, so proper sanitation goes a long way in preventing infestations.

Wasp Traps

You can buy commercial wasp traps at garden centers or hardware stores. To make them more effective:

• Use protein-based bait (like dog food or tuna) early in the season
  
  

• Switch to sweet bait (like sugar water or fruit juice) later in the summer
  
  

⚠️ Avoid placing traps near patios, playgrounds, or eating areas.
Traps attract more wasps before they capture them — place them around the perimeter of your property instead.

Wasp Nest Removal

If the wasp nest is in a low-risk location, it’s safest to wait until late fall (November–December) when the colony has died off naturally. You can then remove and dispose of the empty nest safely.

If the nest poses a danger to people or pets, it must be removed carefully:

• Remove nests after sunset, when wasps are less active
  
  

• Wear full protective gear, including gloves, long sleeves, and a head net
  
  

• Avoid shining bright lights directly at the nest — use a red-filtered flashlight to stay undetected
  
  

• Gently enclose smaller nests in a plastic bag, detach it, and freeze for 48 hours before disposal
  
  

⚠️ Removing active wasp nests is dangerous — a swarm can attack if disturbed.
For large or hidden nests, it’s strongly recommended to contact a professional wasp removal service in Calgary.

Chemical Wasp Control (Use with Care)

If you choose to use a pesticide:

• Read the product label carefully and ensure it lists wasps as a target pest
  
  

• Always look for a Pest Control Products (PCP) number, confirming it’s approved by Health Canada
  
  

• Apply in the evening, when wasps are least active
  
  

• Use a red-filtered flashlight and avoid direct light
  
  

• Always wear protective clothing and eye protection
  
  

Spray directly into the nest entrance from a safe distance. If you are allergic to stings or unsure about safety, call a licensed pest control expert instead.

Summary: The Best Ways to Control Wasps

• Inspect your property regularly for wasp activity
  
  

• Seal garbage and food sources
  
  

• Avoid perfumes and sugary drinks outdoors
  
  

• Use traps placed away from high-traffic areas
  
  

• Remove nests safely at night or call professionals
  
  

• Use approved pesticides only when necessary
  
  

With proper prevention and early intervention, you can control wasps safely and effectively — keeping your Calgary home and yard sting-free.

Local Tip:
If you’re dealing with a large or aggressive wasp nest, don’t risk handling it yourself. Contact Pest Pro Calgary for safe, eco-friendly wasp removal by licensed experts.