The Flowtron Bug Zapper offers effective outdoor mosquito control using black light attraction and electric grid killing. Reviewers praise its environmental benefits over chemical pesticides and note its durability, with one reviewer citing 25 years of reliable service. The device requires plugging into an electrical outlet and does not feature solar power. Users report it attracts hundreds of insects nightly, though the included cord is short and typically requires an extension cord for placement.
Full review
Outdoor effectiveness tested
In a controlled test conducted over several summer nights in humid and bug-ridden rural North Carolina, a bug zapper demonstrated its capacity to attract and dispatch flying insects. The device registered kills within minutes of being plugged in, with a steady flow of victims appearing after just 15 minutes. The zapper's operation relies on a UV black light and electrified grid design that attracts insects and dispatches them instantly upon contact. The unit's effectiveness was evaluated against five other models, and it outperformed the competition in reducing the flying insect population. Testers noted that the zapper's ability to cover a large 1-acre area was evident in the consistent stream of insects it attracted and eliminated.
Lighting and attraction mechanisms
The Flowtron Bug Zapper operates using a UV black light that attracts flying insects. This mechanism works by drawing insects toward the light source, where they encounter an electrified grid designed to kill them instantly. The zapper includes two UV black light bulbs that are part of the device's core functionality. One reviewer noted that the zapper's effectiveness is immediate, with insects making a beeline for the light within minutes of activation. The device also features a slot at the bottom for an octenol bait pack, which serves as an attractant for mosquitoes and biting flies. This combination of UV light and attractant is designed to maximize the number of insects drawn to the device.
Setup and usability challenges
Setting up the Flowtron Bug Zapper is straightforward, as it comes fully assembled and ready to use right out of the box. Users simply need to find a suitable location to hang the unit, typically about 30 feet from an outdoor living space to maintain a buffer. The main challenge during setup involves the power cord, which extends less than a foot from the unit, requiring users to employ a 40-foot extension cord to reach the nearest outdoor outlet. This creates an unsightly cord running through the yard and poses a tripping hazard. Additionally, the unit requires the insertion of an octenol bait cartridge that lasts approximately 30 days and costs about $15 for a replacement three-pack.
Insect mortality statistics
A University of Delaware study tracked six residential bug zappers over a 10-week period, collecting a total of 13,789 insects. The results revealed that only 31 of the insects killed were biting flies, including mosquitoes, representing just 0.22 percent of the total catch. This finding indicates that despite the zapper's effectiveness at attracting insects, it is largely ineffective at targeting the specific pests that bother humans. The study also noted that over 99.75 percent of the insects killed were beneficial species such as beetles and moths. This significant imbalance in target versus non-target insects raises concerns about the ecological impact of widespread bug zapper use, particularly in areas where pollinators and other beneficial insects are already under threat.
Environmental impact concerns
The indiscriminate killing of insects by bug zappers raises significant environmental concerns. The University of Delaware study found that bug zappers kill thousands of non-target insects, including beneficial species like parasitoids, predators, and aquatic insects. This widespread elimination can disrupt local ecosystems and potentially contribute to the decline of pollinators such as moths, which are crucial for maintaining biodiversity. Experts from the American Mosquito Control Association and Colorado State University Extension have concluded that bug zappers are not effective at controlling biting mosquitoes and may inadvertently harm beneficial insects. The ripple effects of this wholesale insect eradication could impact bats and nighthawks, which rely on insects for food, and could contribute to the ongoing crisis of colony collapse in honey bees.
Longevity and maintenance
Users have reported that the Flowtron Bug Zapper typically fails after 1-2 years of use, with the electric grid circuit burning out and stopping the zapping function. The replacement circuit is available on platforms like Etsy and is designed to use a higher quality circuit that should last longer than the original. However, the replacement only addresses the zapping grid circuit, not the bulb circuit, requiring users to find alternative solutions such as using a UV LED strip or UV LED bulb to replace the fluorescent bulb. The light bulb inside the zapper will eventually run out and need replacement, adding to the long-term maintenance requirements of the device.
User satisfaction and recommendations
Despite the environmental concerns, some users have expressed satisfaction with the Flowtron Bug Zapper's performance. One reviewer who has used the device for 25 years noted its effectiveness in eliminating mosquitoes and expressed no intention to switch to a different brand. The reviewer emphasized that the zapper provides a chemical-free solution to mosquito control, which they see as beneficial for families. Another reviewer highlighted the zapper's ability to cover a large 1-acre area and its ease of setup, making it a practical choice for those seeking to reduce insect populations in their outdoor spaces. However, the device's aesthetic drawbacks, such as its utilitarian looks and the need for extension cords, were noted as potential downsides.
Strengths
- +Provides effective mosquito control with 40W bulb and 5600V killing grid
- +Environmentally friendly alternative to chemical pesticides
- +Durable design with 25-year service record mentioned by reviewer
- +Attracts insects using black light technology
- +Made in the USA
Watch-outs
- −Requires electrical cord and cannot be solar-powered
- −Includes a relatively short power cord that requires extension cord
How it compares
While the Flowtron Bug Zapper offers a 25-year service record and USA manufacturing, it's less effective than the Flowtron Electronic Insect Zapper in large areas and lacks the octenol bait pack that enhances mosquito attraction. It's also not as robust as the Flowtron Residential Bug Fighter in terms of coverage area, but it's more durable than the Executioner model.
Rating sources
“Bug zappers kill bugs by the thousands. But there's a problem: They kill the wrong bugs.”
Our 3.1 score is the average of the 4 scored reviews above; 2 more reviewed it without printing a score and are not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
