Mosquito Control in Unionville
If you need mosquito control in Unionville, AstraHive Pest Control offers licensed treatment backed by a 90-day warranty. Standing water on your own Unionville property is what public larviciding programs do not reach.
Mosquitoes near Unionville: what the sightings show
GBIF, the open biodiversity database, holds 170 recorded sightings of Culex, Aedes and Culiseta mosquitoes within roughly 13 km of Unionville, and the busiest month is June with 63.
| Species or group | Recorded sightings |
|---|---|
| Aedes mosquitoes (Aedes) | 170 |
Source: GBIF.org occurrence records for Canada. These are observations logged by naturalists and museums, so counts show where people looked as well as where a species lives.
Within about 4 km of the centre of Unionville, OpenStreetMap maps 4 named creeks or rivers, including Rouge River, Bruce Creek, Berczy Creek and Apple Creek and 7 named ponds or water bodies, including Rouge River, Toogood Pond and Walden Pond. Still water in ponds, stormwater ponds, ditches and catch basins is what health units monitor for mosquito breeding.
How AstraHive Pest Control gets rid of mosquitoes in Unionville
- Find the breeding zones: gutters, low-lying areas, ornamental ponds and bird baths first.
- Larvicide on standing water that cannot be drained.
- Residual treatment on dense foliage, shaded resting zones and foundation and perimeter edges.
- Monthly follow-up from May through September, if you want it.
Products are Health Canada approved and applied according to the product label, and our technicians are licensed by the Ontario Ministry of the Environment, Conservation and Parks (MECP). Our standard 90-day warranty applies to our treatments, and your technician confirms the terms for a seasonal mosquito program when you book.
Mosquitoes in your Unionville home or building?
Our licensed technicians start with an inspection and a clear plan for your property.
Call 905-925-8427Areas near Unionville that we also serve
| Page | Distance from Unionville | Direction |
|---|---|---|
| Mosquito control Markham | 2 km | southwest |
| Mosquito control Berczy Village | 4 km | northeast |
| Mosquito control Cathedraltown | 4 km | northwest |
| Mosquito control Wismer | 6 km | northeast |
| Mosquito control Commerce Valley | 7 km | southwest |
| Mosquito control Cornell | 7 km | east |
Straight-line distances between area centres, rounded.
More on mosquitoes for Unionville homeowners
- Only female mosquitoes feed on blood, because they need it to produce eggs. (Health Canada: mosquitoes)
- Mosquitoes are active in Canada from May through September and bite most between dusk and dawn. (Health Canada: mosquitoes)
- West Nile virus is usually spread by a mosquito that has fed on an infected bird. (Public Health Agency of Canada: how West Nile virus spreads)
- Fish, frogs, beetles, dragonflies and birds eat mosquito larvae and help keep numbers down. (Health Canada: mosquitoes)
Wetlands, ditches and ponds around Unionville
OpenStreetMap maps 66 wetlands and water bodies within 3 km, 120 creeks, ditches and drains within 3 km and 91 parks, gardens and golf courses within 3 km of the centre of Unionville. Mosquitoes breed in standing water, so wetlands, ponds, ditches and drains close to homes matter most.
Counts of features mapped in OpenStreetMap within the stated distance of the centre of Unionville. They show what contributors have mapped, which varies from place to place, not how many pests there are.
Private yards in Unionville
Unionville is part of Markham, so these are Markham figures. 56% of homes in Markham are detached houses with private yards. Gutters, planters, tarps and bird baths on a private lot are breeding sites that public larviciding does not reach.
Source: Statistics Canada, 2021 Census, private households in Markham. Shares of occupied private dwellings.
Frequently asked questions: Unionville
How warm does Unionville get in July?
The Toronto Buttonville A station's July mean is 21.2 degrees Celsius, with about 17.0 days a year above 30 degrees Celsius.
How do I reduce mosquitoes around my yard?
Drain standing water in gutters, bird baths and low spots, and use larvicide on water that cannot be drained. Residual treatment goes on shaded foliage and foundation edges.
Why are there more mosquitoes after rain?
Rain fills containers, gutters and ditches, which become breeding sites within days.
Sources
- City of Markham: Property Standards By-law (2017) . section 14 pest prevention
- City of Markham: Property Standards . composters, rodents and insects
- Tribunals Ontario, Landlord and Tenant Board: Maintenance and Repairs . landlords must control pests such as cockroaches and mice; municipal standards
- York Region: YorkSafe Inspection Reports . published food premises inspection reports
- York Region: West Nile Virus . 34 traps, positive traps by municipality, private catch basin treatment
- Environment and Climate Change Canada: Canadian Climate Normals 1981-2010 . monthly temperature, precipitation, frost days and degree-days
- York Region: mosquitoes test positive for West Nile virus
- York Region: first human West Nile case of 2026
- Statistics Canada: structural type of dwelling by tenure, 2021 Census (table 98-10-0240-01) . dwelling types and renter households
- Statistics Canada: dwelling condition by period of construction, 2021 Census (table 98-10-0233-01) . age of homes and repair needs