Best Backyard Bug Zapper 2026 — Flowtron BK-40D vs Thermacell

Published 2026-04-25 · Updated 2026-04-25 · 6 min read · By Zomg The Handyman
TL;DR

Two approaches to backyard bug control. Flowtron zapper attracts and kills. Thermacell creates a no-fly zone.

Affiliate disclosure: As an Amazon Associate, Zomg The Handyman earns from qualifying purchases.

Two completely different bug control philosophies. Flowtron attracts bugs to a UV zapper that kills them. Thermacell creates a 15x15 ft no-fly zone with a chemical-free repellent.

Quick Comparison

PickBest ForApprox Price
Bug ZapperFlowtron BK-40D Outdoor Bug Zapper$70-$100

Our Picks

Bug Zapper
Recommended on Amazon
Flowtron BK-40D Outdoor Bug Zapper
Electric bug zapper for backyards. 1-acre coverage. Quiet operation.
$70-$100 View on Amazon →

Bug Zapper Pros

Kills bugs. Visible feedback (zap sounds). 1-acre coverage.

Bug Zapper Cons

Kills beneficial insects too (moths, beetles). Some debate on environmental impact.

Thermacell Pros

Doesn't kill bugs — just repels. No environmental impact. 15x15 ft zone perfect for patio dining.

Combo Approach

Bug zapper for whole backyard. Thermacell for dining area. Best of both.

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Frequently Asked Questions

Zapper or Thermacell?

Thermacell for environmental ethics. Zapper for satisfaction of dead bugs.

Bug zapper kill mosquitoes?

Yes but mosquitoes aren't strongly attracted to UV. Better at flying bugs.

Best mosquito strategy?

Thermacell + perimeter spray + standing water elimination.

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