Does Mosquito Coil Work on Flies?


The familiar spiral mosquito coil, also known as mosquito incense.

We use this at my house. It’s cheap.

Yesterday, I fought flies with this mosquito incense.

Does the normal mosquito incense really work against flies? There are mosquito incense products specifically for flies, so it seems unlikely that normal mosquito incense would work. However, when I tried using it yesterday, the flies became more active after the mosquito incense was lit (were they struggling?). As a result, I evacuated to another room early. The next morning, there were no flies, but the floor had a slight burn mark (accident).

The active ingredient in normal mosquito incense is dl·d-T80 allethrin. It is claimed to be effective against mosquito adults, but it doesn’t seem to work against flies…

736: Anonymous 2007/02/06 (Tue) 00:17:22
dl·d-T80 allethrin (Pinamin Forte)
An optical/geometric isomer of allethrin. It has better insecticidal power than allethrin. It works rapidly against flies and mosquitoes. It is used as an ingredient for mats and mosquito coils.
(Oil-based agents, smoke agents)

It seems to be effective against flies as well.

What’s even more effective against flies is this product containing transfluthrin.

Its effects include elimination of adult flies and mosquitoes, or repelling them. Transfluthrin is claimed to be effective against cockroaches as well, according to Wikipedia, so I think the spiral mosquito coil can also serve as a cockroach repellent.

I purchased it immediately. Both the spiral mosquito coil and the normal one are products of Dai Nippon Jochugiku Co., Ltd.