Amdro Quick Kill Mosquito Bombs are designed to disrupt the life cycle of mosquitoes using an insect growth regulator (IGR). This 6-pack uses a compressed mineral carrier, likely gypsum-based, which targets the hormonal development of larvae to prevent them from becoming adults. Unlike biological treatments, this material is highly UV-stable, making it effective even in constant, direct sunlight.
Dissolution & Application Realities
The "bomb" format is built for a 64-day sustained release, which is significantly longer than many other options. However, the practical reality of this mineral matrix is that it can become buried in silt or mud in the bottom of a pond, which may render it inert. Furthermore, in water with high organic debris (tannins), the lateral dispersion may be limited, potentially leaving "dead zones" where larvae can still thrive if they are far from the submerged puck.
Because these are not adulticides, they will not kill flying mosquitoes immediately. They are best used as part of a long-term strategy to reduce the overall population over two months. The packaging is sensitive to humidity, so the 6-pack should be kept tightly sealed in a dry place to prevent the pucks from "weeping" or softening before use.
- Targets chitin synthesis to stop larvae from maturing.
- Residual efficacy lasts for up to 64 days per puck.
- Solid-state design avoids the drift issues associated with sprays.
If you prefer a biological option that floats on the surface and specifically targets the larvae's digestive system, the Summit 20-count dunks are a popular choice.
For more options in long-term water feature maintenance, visit our mosquito larvicide dunks category.
