Quality of Life and Nuisances

Something is considered to be a nuisance when it troubles the well-being of a living being or an ecosystem. A nuisance can range from a slight inconvenience to a severe problem. Exposure to dust, noise, light pollution, and the presence of invasive species or ragweed within our territory represent the nuisances most frequently reported to and dealt with by the City.

Action taken or in progress:
  • Raising residents' awareness of issues related to the presence of ragweed in residential areas.

Ragweed and poison ivy: how to differentiate between them?

Many people confuse ragweed and poison ivy, two plants whose French names are very similar (“herbe à poux” and “herbe à la puce”) but that are completely different! The former causes allergies while the latter causes skin eruptions. We invite you to consult the comparative table below in order to differentiate them and find the right actions to take.

Ragweed leaflet (in French)

Poison Ivy leafletherbe (in French)


Japanese beetles

To counteract the spread of Japanese beetles, the City encourages residents to opt for preventive treatment and control as described below. As this insect causes problems both at its adult and larval stages, specific treatments exist for each phase of the life cycle.

Adult stage
Adult insects “skeletonize” plant foliage (eat away all but the veins), causing serious damage. They may also feed on the fruit of certain plants.

Japanese beetles leaflet
Treatments to keep the insects away and avoid the adults laying eggs:
  • Install beetle traps (pheromone traps) near their food sources (shrubs, plants, etc.) and light sources.
  • Spray plants or the insect directly with an insecticidal soap (water and 10% dishwashing soap) beginning in mid-July, the period during which the females lay their eggs in the soil.
  • Turn off garden lights during the evening since these insects are attracted by light.
  • Keep your lawn at a height of at least 7.5 cm (3 inches), since female beetles prefer to lay their eggs in grass cut short, where the soil is easily accessible.
  • Promote the presence of natural predators, such as the American robin, by installing nesting boxes near your residence.
  • Grasscycle: leave your grass clippings on the lawn after mowing it. This will prevent the female laying eggs on the ground.
  • Frequently remove weeds from your land, since they serve as habitats (homes) for adult beetles.
  • Plant allium (chives) near your shrubs and plants since this thin grass is a natural repellent.
  • Spread wooden planks on the ground, preferably near the food source (shrubs, plants, etc.) of these insects; they will hide there at night. The next morning, you can capture them before they become active again.
  • Capture them with bare hands or using a portable vacuum cleaner and then submerge them in a solution of water and soap (insecticidal soap).
  • Spray the plants with a solution of water and macerated garlic. Garlic may repel the insect, but this is not always effective.

Larval stage of the Japanese beetle

The main problem created by the presence of larvae (white grubs) is that they feed on the roots of the grass, which leads to significant premature yellowing of the lawn. The damaged section of the lawn can be lifted up like a carpet and must be replaced.
Treatments for the larvae (white grubs):
  • Keep your lawn at a minimum height of 7.5 cm (3 inches) to encourage deep roots, more resistant to larvae.
  • Choose a diversified lawn (ecological grass or ground covers) rather than a traditional lawn. The larvae typically cease to develop when clover, fescue or ryegrass seeds are present.
  • Promote the presence of natural predators, such as the American robin, by installing nesting boxes near your residence.
  • Use 100% natural fertilizer (compost) since high nitrogen content fertilizers attract the larvae.
  • Treat the soil with nematodes (a biopesticide) between mid-July and early September.
  • Reduce watering your lawn in order to maintain a drier soil during peak periods of hatching (mid-July to mid-August), and larval development (mid-August to mid-September).
If, after applying the suggested treatments, the problem persists on your property, we suggest you contact a knowledgeable professional to obtain more advice.