ACTO Stink Bug & Green Shield Bug Killer 400 ml: Fast, Long-Lasting Action

ACTO Stink Bug & Green Shield Bug Killer 400ml (Reference: PUNAIS9) is a high-performance professional insecticide specially formulated to tackle infestations of brown marmorated stink bugs, green shield bugs, cockroaches and ants. This ready-to-use spray combines immediate knockdown with long-lasting protection thanks to its advanced pyrethroid technology. Built to meet the needs of homeowners and professionals alike, it is a reliable way to quickly reclaim your peace and quiet from the toughest pests.

Benefits and real-world uses

This insecticide spray is the right answer to the seasonal invasions of brown marmorated stink bugs and green shield bugs that seek shelter in our homes to overwinter. These highly invasive insects attract others of their kind through aggregation pheromones, which turns a few bugs into a massive infestation very quickly. ACTO Spécial deals with this head-on: it neutralises the insects already present and prevents new ones from moving in.

Homeowners and professionals use it successfully in homes, commercial premises, warehouses and outdoor areas. It is especially valued during the two critical windows: autumn (when bugs look for overwintering shelter) and spring (when they become active again and breed). Building managers, restaurant owners and maintenance supervisors rely on it as a professional way to keep their premises pest-free.

Technology and technical details

The strength of ACTO Spécial lies in its dual-active, low-dose pyrethroid formulation that specifically targets the insects' nervous system. This technology delivers knockdown in just 10 minutes while keeping the environmental impact low. The active molecules disrupt nerve transmission in insects, causing paralysis and then definitive elimination.

The 400ml spray offers an excellent capacity-to-performance ratio, letting you treat large surfaces. Its formulation sprays evenly and lays down an invisible residual film that stays active for several weeks. That residual action provides continuous protection against re-infestation. The product works just as well indoors as outdoors, and stands up to swings in temperature and humidity.

How to apply it and safety precautions

ACTO Spécial is easy to use thanks to its ready-to-use aerosol format. Spray directly onto the insects' travel routes: skirting boards, door and window frames, room corners and under appliances. A burst of 3 to 5 seconds per area is enough for optimal coverage.

For preventive treatments, focus on potential entry points: thresholds, joinery joints and air vents. Where there is an established infestation, spray the visible insects directly, then their clustering areas. Ventilate the room after application and wait before going back in, especially where there are children or pets.

The product is extremely flammable, so keep it away from any heat source while spraying. Cover aquariums and keep animals away during treatment. Store in a cool, dry place, out of reach of children.

Expert tips and getting the most from each treatment

To get the most out of ACTO Spécial, time your treatments for the key moments: late September to early October for preventive treatment before overwintering, and March to April to stop the spring build-up. Pair the treatment with regular inspection of entry points and seal up any cracks for a joined-up approach.

Professionals recommend combining ACTO Spécial with pheromone traps to monitor stink bug activity and fine-tune which areas you treat. Outdoors, concentrate on south-facing walls and the edges of vegetation, where these insects gather before getting inside.

Avoid the common mistakes: don't treat only the visible insects but their travel routes as well, don't skip preventive treatments, and don't underestimate how fast these pests spread. Keeping a treatment log helps you fine-tune how often you need to intervene, based on each site's infestation history.

Technical specifications

Use biocides safely. Before use, always read the label and product information.