Seasonal Timing Guide
Timing your spider spray is critical for maximum efficacy. Learn why May and June are ideal in Ontario, followed by an August booster.
The best month to spray for spiders in Ontario is May or early June, just as overwintered egg sacs begin hatching and temperatures climb above 15°C. A secondary booster spray in August is recommended to block mature adult spiders migrating indoors for autumn mating.
Understanding arachnid biology helps homeowners achieve the longest-lasting results from their pest control investments.
Eradicates newborn spiderlings before they spin webs or establish territorial harborages on siding.
Maintains peak barrier strength against flying prey insects during peak heat and humidity.
Prevents large mature orb weavers and sac spiders from seeking warm cracks around windows and doors.
Absolutely. If you missed the spring window, treating in mid-summer or early autumn immediately kills existing spider infestations and cleans heavy cobwebs before spiders lay thousands of overwintering eggs.
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Our flagship exterior structural barrier targets the full perimeter of your home — foundations, soffits, window frames, eaves, and all entry points. Repels and eliminates spiders, ants, and crawling insects before they enter.
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SpiderShield™ creates an invisible exterior barrier that prevents more than just spiders — blocking ants, earwigs, crickets, and other seasonal crawlers from entering your home.
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