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If your lawn is plagued by large, long-legged flying insects every fall or spring, you are likely dealing with crane flies — one of the most misunderstood and underestimated lawn pests in Canada. While adult crane flies are mostly harmless, their larvae (commonly called leatherjackets) can devastate grass roots, leaving you with patchy, yellowing turf. Understanding the problem and acting early is the key to protecting your property.
At Technica Pest Solutions, we provide targeted, science-backed Crane Flies Extermination services that address both adult crane flies and their destructive larvae — giving your lawn a full recovery and long-term protection.
| Feature | Details |
|---|---|
| Common Name | Crane Fly / Leatherjacket |
| Active Season | Adults: Aug–Oct | Larvae: Oct–May |
| Damage Caused | Root destruction, lawn die-off, brown patches |
| Preferred Habitat | Moist, grassy lawns and gardens |
| Risk Level | High — especially in wet years |
Not sure if crane flies are behind the damage on your lawn? Watch out for these tell-tale signs:
| Treatment | How It Works | Best For |
|---|---|---|
| Soil-Applied Insecticide | Penetrates soil to kill larvae at root level | Active infestations |
| Biological Control (Nematodes) | Natural parasites introduced into soil | Eco-sensitive properties |
| Preventive Barrier Treatment | Applied in late summer before eggs hatch | Recurring annual infestations |
When it comes to lawn pest management, experience matters. Technica Pest Solutions brings certified expertise, transparent pricing, and a genuine commitment to protecting your property. We do not believe in one-size-fits-all solutions — every lawn is assessed individually before we recommend a treatment plan.
No. Adult crane flies do not bite, sting, or transmit disease. They are harmless to people and pets. The real danger comes from their larvae, which feed on grass roots and can cause serious lawn damage if left untreated.
The optimal treatment window is late summer to early fall (August through October), when larvae are young and most vulnerable near the soil surface. Early intervention produces the best results and prevents the heaviest damage from occurring over winter.
Cover a section of damaged lawn with black plastic sheeting overnight. The next morning, larvae will have surfaced seeking moisture. If you find grey-brown grubs up to 30mm long, you have a leatherjacket infestation requiring professional attention.
DIY products are available, but they rarely address the full life cycle of crane flies. Professional Crane Flies Extermination ensures the right product is applied at the right time and depth — critical factors that determine success.
Most treatments begin showing visible improvement within 2 to 4 weeks. Biological nematode treatments may take slightly longer as the organisms establish in the soil. Your technician will provide a timeline specific to your property.
