Sumithion L-40, a specialized insecticide primarily used for mosquito control, including both adult mosquitoes and their larvae. It is formulated for use in professional pest control applications such as mosquito fogging (thermal fogging) and Ultra Low Volume (ULV) spraying.
Key Features and Composition
- Active Ingredients: It contains a combination of fenitrothion (40.0%), an organophosphate, and tetramethrin (1.0%), a pyrethroid.
- Formulation: It is an oil-based, ultra-low volume liquid (UL) designed for effective “one-shot” applications.
- Target Pests: While specifically engineered for various mosquito species, including those that transmit diseases like dengue, it is also effective against flies and cockroaches.
- Action: The formula provides a rapid knockdown effect to quickly eliminate flying insects and offers a residual protective barrier that can last up to a month in some environments.
Application and Safety
- Usage Areas: It is typically used in residential areas, construction sites, industrial sites, and animal farms where mosquitoes are known to hide and breed.




