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Pests & Wildlife

Insects, animals, and weeds can damage your yard and garden. It's critical to be aware of invasive pest populations and keep them under control without compromising the health of our ecosystems.

The City of Regina has used integrated pest management strategies for many years to control weeds and pests in its parks, athletic fields, and other green spaces in our city. Residents are encouraged to use an integrated approach of preventative, physical, beneficial insects and animals and chemical tools to control insects, weeds, and diseases which may appear in your yard. Below is a list of common insects, weeds, animals and diseases and what can be done to control them.


What The City Does: The City releases thousands of ladybugs in the summer to help control the aphid population. A single ladybug will eat at least 2,400 aphids during its lifetime. 

What Can You Do: Introduce ladybugs to your yard. Ladybugs can be ordered through local retailers. If a more immediate solution is requires, treat infested plants with an insecticidal soap spray. Make sure to follow the label directions. 


What The City Does:  More than 400 traps are placed on trees throughout the city to monitor the populations of adult cankerworm moths. Cankerworm counts are done on the bands during the spring and fall emergence periods to determine which areas have the highest level of concentration. Areas are then prioritized and sprayed accordingly. Treatments are completed from mid-May to mid-June when worms are hatching and feeding on trees. The City does not go out to an individual house to spray the trees, nor do we spray private trees.

What Can You Do: Band all your elm, fruit or maple trees in the spring (late March to mid-May) and again in the fall (early September to mid-November) to prevent cankerworms from climbing up the tree to lay eggs. It is important to band all trees in an area or else cankerworm larvae could move from unbanded trees to banded trees. Please do not leave bands up longer than recommended as it can do more harm than good to the tree. If cankerworms are present, you can spray infestations with BTK.


What The City Does: When an incident is reported, the City will investigate and if a problem exists, a course of action such as scare tactics, live trapping or coyote removal will be taken.

What Can You Do: Never leave food in your backyard or feed wildlife. This can include cleaning up your compost. Coyotes can be attracted to dog feces so ensure you clean up after your pet in your yard and along the areas that you frequent.

To report a wildlife sighting, please call Service Regina at 306-777-7000.


What The City Does: The City's current program treats athletic fields such as soccer pitches and ball diamonds. The best time to treat dandelions is in the fall as that is when the weed starts storing food in the root for winter. Not all areas of the city are sprayed every year. Areas are monitored and prioritized depending on weed density. It is harder for weeds to grow in healthy conditions which is why the City increases practices like fertilizing, aerating and mowing in parks. 

What Can You Do: Keep your yard healthy by fertilizing, aerating and regularly mowing your lawn. You can also remove dandelions with a knife or digger, ensuring you get the head as well as the root. 

Dutch Elm Disease

What The City Does: The City of Regina follows an integrated pest management program to prevent the disease from spreading throughout the city and limit the number of local trees lost to this disease. This includes surveillance of trees, monitoring of elm bark beetles, pruning and sanitation, firewood inspections, public awareness and research. 

What Can You Do: Do not transport firewood. Do not prune your elm trees between April 1 and August 31 each year as the scent can attract elm bark beetles. When pruning is allowed, remove dead and broken branches ensuring you sanitize your equipment with methanol between cuts.

Emerald Ash Borer

What The City Does: The City is taking proactive measures to protect Ash trees from Emerald Ash Borers such as setting up traps for early detection, and working to educate residents on the importance of not transporting firewood. 

What Can You Do: Do not move firewood. Firewood should be bought local and burned local. Do not buy Ash wood or plant Ash trees supplied from nurseries east of Saskatchewan or the United States. Please call Service Regina if you believe something is wrong with your Ash tree. 

Maple Bugs

What Can You Do: To prevent maple bugs, you can remove boxelder trees from your yard. If maple bugs are present, sweep them into a garbage bag or vacuum clusters when they congregate in early morning, making sure to change the bag immediately after. Homemade insecticidal soap can also help control infestations.


What The City Does: The City of Regina follows an integrated pest management program to control mosquitos. This includes monitoring number of larvae in bodies of water up to 10 km outside the city limits. If larvae are found, the city uses Vectobacâ„¢ in ponds, lakes, sloughs, ditches and puddles to kill the mosquito larvae. To monitor and track adult populations, the City will place light traps throughout the city and empties them daily to count and forecast trends for future management strategies. 

What Can You Do: Once cup of water can produce hundreds of mosquitos. Remove any standing water in your yard by filling in any low-lying areas where puddles appear, check flat roofs, and remove objects that collect rainwater such as bird baths, containers, eaves troughs or even tarps. Cover rain barrels with a tight fitting screen. Think about adding gold fish to your pond or ornamental pool.

Tent Caterpillars 

What The City Does: The City of Regina follows an integrated pest management program to control cankerworms and tent caterpillars. This includes monitoring populations, spraying and public awareness.

What Can You Do: Keep your trees as healthy as possible with a regular watering, pruning and fertilizing schedule. Avoid planting trembling aspen trees which tent caterpillars prefer, although they will also eat most deciduous trees or shrubs. Place a sticky collar around the base of susceptible trees in June to trap migrating caterpillars. If egg bands appear, slit and remove egg bands by hand or prune the branch where it is located. You can hand-pick and destroy caterpillars in areas where they cluster together in the evening or on cool days, or spray with BTK.