DELTAFER FLOW: Broad-Spectrum Pyrethroid Flowable for Professional Pest Con 2026

In the landscape of professional insecticides, choosing the right formulation can mean the difference between an effective treatment and one that falls short of expectations. DELTAFER FLOW, developed by FERBI S.r.l. and distributed on the Italian market by HI-PRO-CHEM S.r.l., stands out as a broad-spectrum solution specifically designed for professional use. Based on two synthetic pyrethroids in concentrated suspension, this insecticide-acaricide deserves a thorough analysis for pest control operators looking to expand or refine their operational arsenal.

Composition and Formulation

DELTAFER FLOW is a liquid insecticide-acaricide in concentrated suspension (flowable) whose strength lies in the synergistic combination of two active ingredients from the synthetic pyrethroid family:

• Deltamethrin – 2.46 g per 100 g of product | CAS 52918-63-5
• Tetramethrin – 0.665 g per 100 g of product | CAS 7696-12-0

Physical state: Viscous liquid, white color
Flammability: Non-flammable
Stability: Stable under normal conditions of use and storage

Deltamethrin acts primarily through contact and ingestion, blocking sodium channels in the nerve membranes of insects, causing continuous nerve stimulation and death by paralysis. Tetramethrin enhances the immediate knock-down effect, a feature appreciated in applications where speed of action is critical. The flowable formulation ensures homogeneous dispersion of active ingredient microparticles, with a high water content that makes it particularly suitable for treatments on porous surfaces, where oily formulations might penetrate unevenly.

Target Organisms: What to Use It Against

The action profile of DELTAFER FLOW covers a wide range of harmful insects, making it a versatile tool for interventions in very different contexts. The officially authorized target organisms include:

Flying Insects

• Tiger mosquito (Aedes albopictus)

Stored Product Pests

• Indian meal moth (Plodia interpunctella)

Crawling Insects

• Oriental cockroach (Blatta orientalis)
• German cockroach (Blattella germanica)
• Black garden ant (Lasius niger)

Mites and Parasites

• Common tick (Ixodes ricinus)

The presence of tetramethrin in the formulation ensures immediate knock-down action, while deltamethrin guarantees a persistent residual effect—an ideal combination in active infestation situations where it is necessary to quickly interrupt insect activity.

Fields of Application: Where to Use It

DELTAFER FLOW is approved for both indoor and outdoor use, with some specifics to keep in mind:

Indoor Environments

• Private homes and residential buildings
• Schools, kindergartens, gyms, barracks
• Hospitals, nursing homes, healthcare facilities

Outdoor Environments

• Gardens and green areas
• Perimeter treatments around buildings
• Public spaces and urban areas

For outdoor pest challenges, such as raccoons that may invade yards and cause damage, professionals often look for integrated solutions. While DELTAFER FLOW targets insects and acarids, those dealing with larger pests may want to explore the best poison for raccoons to complement their pest management strategy.

Application Methods and Dosage

DELTAFER FLOW can be applied using various techniques depending on the target pest and environment:

• Low-pressure spraying: For indoor surfaces and baseboards
• ULV (Ultra Low Volume) fogging: For flying insects in large areas
• Thermal fogging: For outdoor mosquito control
• Spot treatment: For localized infestations

The recommended dosage varies by target organism. For crawling insects like cockroaches and ants, a dilution rate of 0.5–1% is typical. For flying insects, higher concentrations may be used in fogging applications. Always refer to the product label for precise mixing instructions.

Safety and Environmental Considerations

As a professional-grade product, DELTAFER FLOW requires careful handling. Operators should wear appropriate personal protective equipment (PPE), including gloves, goggles, and respirators when applying. The product is toxic to aquatic organisms and bees, so care must be taken to avoid contamination of water sources and flowering plants during outdoor applications.

For more insights on managing pests around your property, check out our guides on yard and outdoors pest control and home and garden tips.

Advantages Over Competing Products

DELTAFER FLOW offers several distinct advantages:

• Dual-action formula: Immediate knock-down plus long residual control
• Water-based flowable: Better penetration on porous surfaces
• Broad spectrum: Effective against multiple pest classes
• Low odor: Suitable for sensitive environments like hospitals and schools
• Non-flammable: Safe for storage and transport

Frequently Asked Questions

1. Is DELTAFER FLOW safe for use around pets?

DELTAFER FLOW should not be applied directly to animals. After treatment, allow surfaces to dry completely before allowing pets back into the area. Keep pets away during application and until the product has dried.

2. How long does the residual effect last?

The residual effect varies depending on the surface and environmental conditions. On non-porous surfaces, it can last up to 4–6 weeks. On porous surfaces, the duration may be shorter. Reapplication may be necessary for heavy infestations.

3. Can DELTAFER FLOW be used in organic farming?

No, DELTAFER FLOW is a synthetic pyrethroid product and is not approved for organic farming. It is intended for professional pest control in conventional settings.

4. What is the shelf life of DELTAFER FLOW?

When stored in its original container in a cool, dry place away from direct sunlight, DELTAFER FLOW has a shelf life of approximately 2 years from the date of manufacture.

5. Does DELTAFER FLOW kill bed bugs?

While DELTAFER FLOW is effective against many crawling insects, bed bugs are not listed among its authorized target organisms. For bed bug infestations, specialized products and integrated pest management approaches are recommended.

Author: Paulo Vivere