If it seems like more spiders have been crawling around your Phoenix home these days, you’re not imagining things. Each autumn, as temperatures start to cool down throughout the Valley, spider activity rises considerably in nature and inside houses. It is legitimate, science-based motives that make September through November peak creepy crawly season in Phoenix.  For greenmangopest.com, fall is consistently the busiest time of year for spider-related calls across the Phoenix metro. This is what has caused the spike, and this is how you can fix it.

Why Fall Triggers a Spider Surge in Phoenix

This is mating season for many types of spiders. This is exactly why you start seeing male spiders in places that you would not usually find them, as they leave their webs and go to actively search for a mate. To put it in simpler terms, it’s their road trip but with a few more legs.

Alternatively, the seasonally cooler nights will force spiders toward our heated homes. What also separates Phoenix is those fall temperatures remain in the 80s°F into September and October. That means spiders remained active for weeks in a row instead of days, stretching the surge longer than even U.S. cities with chilly winters do.

Common Spider Species Phoenix Homeowners Encounter This Season

Most of these spiders are harmless nuisances. But the Western Black Widow and the Arizona Brown Spider, our local variant of the recluse (the true brown recluse is rare in Phoenix), are venomous and should be considered if you see a number of them.

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What Is Attracting Spiders to Phoenix Homes in Fall

1. Outdoor Lighting and Insect Activity

Outdoor lights on Phoenix homes are really a free buffet for spiders. Insects head for lights at nighttime, and spiders go for the food. Orb weavers are perhaps the most infamous for constructing elaborate webs in proximity to porch and landscape lights. sometimes overnight.

1. Monsoon Aftermath and Desert-Urban Overlap

Phoenix experiences a monsoon season from July through August, sending desert spiders into city neighborhoods long before autumn. Many of these spiders are already living near houses by September, and when nights turn cooler, they go inside. This place is just about as close to the desert as it gets in Arizona, with Phoenix sitting right on the edge of its very own slice of Sonoran Desert. Coincidentally, Maricopa County is home to approximately 27 species of spiders, some species of which become particularly active during the fall months.

Practical Steps to Reduce Spider Entry Points

• Seal weep holes and gaps around utility lines, as well as worn weatherstripping, frequent in block-wall construction methods commonly used to build houses in Phoenix
• Check outdoor furniture and shake out shoes cluttered with leaves, as birds may have sat there overnight.
• Minimize clutter in garages and storage spaces where black widows and recluses like to hide
• Disconnect or transfer outdoor lighting away from entrances to decrease insect activity around entrances
• Removing woodpiles, dead cacti, and yard debris around your house

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When to Call a Professional for Spider Control in Phoenix

If you are seeing black widows or recluse-type spiders more than once, discover egg sacs in tucked-away corners, or just notice an uptick of many types of spiders, it is advisable to seek help. Those DIY sprays can hardly get into wall voids, crawl spaces, or block-wall cavities, all very common in Phoenix, and where venomous species love to hide.

Companies in the Phoenix metro, such as Saela Pest Control, provide spider-specific services by targeting both the spiders and their food sources (i.e., other insects). Which is why fall is really the best time to treat; you are beating it to the punch before it makes some nice little home for winter.