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UK lawn with a scatter of fertiliser granules at dawn

Lawn & garden

Provanto Ultimate Bug Killer Concentrate dupe

Why pay around £8.99 for Provanto? The bulk active is Deltamethrin 15 g/L emulsion concentrate — 82% less per working litre than a typical shelf pack.

From the retail pack to the active and the mix

  1. 1 · Retail

    Provanto Ultimate Bug Killer Concentrate

    30 millilitres · £8.99 typical snapshot

    Oil-in-water emulsion with solvents

  2. 2 · Active

    Deltamethrin

    1.5% on the label

    52918-63-5C22H19Br2NO3

    Bulk Deltamethrin 15 g/L emulsion concentrate

  3. 3 · Mix

    0.5 ml in 1 L water (outdoor Provanto band; 1 ml/L indoors)

    £0.02 per working litre · 82% less than the shelf pack

    Mixing steps

Active
Deltamethrin
CAS
52918-63-5
Dupe
Deltamethrin 15 g/L emulsion concentrate
Saving
82% / L

Saving is per litre of working-strength mix versus a typical pack price, not versus the DIY kit total. Shop prices move — always check the listing.

Label teardown

What the pack promises versus what the label chemistry actually is.

The marketing claim

“Kills greenfly, blackfly, caterpillars and beetles”

The chemical reality

Provanto Ultimate Bug Killer is deltamethrin at 15 g/L in a 30 ml garden-centre bottle. Half a millilitre per litre outdoors lands at about 7.5 mg/L — the same pyrethroid as a 1 L amenity pack of that 15 g/L emulsion. It is not permethrin ant dust, not SB soft soap, and it is very toxic to aquatic life and bees when spray is wet.

Active vs filler

1.5% Deltamethrin · 99% carrier / filler — Oil-in-water emulsion with solvents

Typical retail
£8.99
30 millilitres
Estimated active cost
£1.20
Scaled from bulk £39.99 / 1 litre
Indicative markup
7.5×
Snapshot maths, not a live shop price

The Marketing Claim & The Catch

A 30 millilitres pack of Provanto Ultimate Bug Killer Concentrate typically retails around £8.99 in lawn & garden. That is a UK shelf-price snapshot for the maths on this page — not a live shop quote or a manufacturer RRP. Listings, sizes and deals move. The marketing line is that you are buying a finished lifestyle product, not a weighed chemical.

On the pack: Kills greenfly, blackfly, caterpillars and beetles; Protects for up to four weeks; and 30 ml makes up to 60 litres.

The catch: Provanto Ultimate Bug Killer is deltamethrin at 15 g/L in a 30 ml garden-centre bottle. Half a millilitre per litre outdoors lands at about 7.5 mg/L — the same pyrethroid as a 1 L amenity pack of that 15 g/L emulsion. It is not permethrin ant dust, not SB soft soap, and it is very toxic to aquatic life and bees when spray is wet.

  • “Kills greenfly, blackfly, caterpillars and beetles”
  • “Protects for up to four weeks”
  • “30 ml makes up to 60 litres”

Proprietary Blend & Dosage Breakdown

The labelled active is Deltamethrin at 1.5%. Everything else in the pack is oil-in-water emulsion with solvents.

At 1.5% active, most of what you pay for is carrier and packaging. The brand is selling convenience, fragrance and a label — not a uniquely potent molecule.

Branded working strength is whatever comes out of the bottle. The bulk alternative is 1.5% Deltamethrin 15 g/L emulsion concentrate, mixed to 0.5 ml in 1 L water (outdoor Provanto band; 1 ml/L indoors).

Labelled active
Deltamethrin
1.5%
Carrier
Oil-in-water emulsion with solvents
Retail pack
30 millilitres · £8.99

The Active Chemical Alternative (Dupe Stack)

The dupe stack is Deltamethrin 15 g/L emulsion concentrate at 1.5% bulk. Indexed as CAS 52918-63-5, formula C22H19Br2NO3. Buy it as 1 litre for around £39.99 from Amazon UK.

Working strength: 0.5 ml in 1 L water (outdoor Provanto band; 1 ml/L indoors). Indicative cost £0.02 per diluted litre — 82% below a typical branded pack on a per-litre basis, before you reuse leftover bulk.

Follow the mixing method and the supplier SDS. Wear the listed PPE. Do not mix incompatible oxidisers, acids or ammonia.

Gloves. Chemical-resistant gloves (nitrile or neoprene)Eye protection. Indirect-vent splash goggles — not ordinary spectaclesVentilation. Use outdoors or with mechanical extraction
  1. Pesticide: very toxic to aquatic life. Read the MAPP label on the pack you buy. Gloves, goggles. Spray at dusk if bees are foraging; keep off ponds, water butts and fish tanks.
  2. Outdoor (except raspberry beetle): 0.5 ml of 15 g/L deltamethrin emulsion per litre of water. Indoor / greenhouse: 1 ml per litre. Raspberry beetle: 0.8 ml per litre on the labelled crops.
  3. Spray both leaf faces until glistening. Do not exceed the labelled number of applications or harvest interval. Keep pets off until dry.
  4. 1 litre of 15 g/L concentrate at 0.5 ml/L makes about 2,000 litres of outdoor spray — many 30 ml garden-centre bottles.
  5. Buy amateur-labelled 15 g/L deltamethrin a householder can legally apply. Do not invent a stronger mix from agricultural EC. Triple-rinse the sprayer; never share it with herbicides without a thorough wash.

Dilution recipe

5 L sprayer

Working strength 0.5 ml in 1 L water (outdoor Provanto band; 1 ml/L indoors). Educational estimate from the listed ratio — check the SDS before you mix.

Chemical

3 millilitres

Deltamethrin 15 g/L emulsion concentrate

Water

5 litres

Carrier / diluent

0% concentrate · 100% water by working volume (solids are dissolved into the water share).

Required PPE

Gloves. Chemical-resistant gloves (nitrile or neoprene)Eye protection. Indirect-vent splash goggles — not ordinary spectaclesVentilation. Use outdoors or with mechanical extraction

Loading calculator…

Side-by-Side Price & Potency Comparison

Head-to-head comparison

Provanto Ultimate Bug Killer Concentrate versus bulk Deltamethrin 15 g/L emulsion concentrate
MeasureRetail brandedProvantoRaw active dupeDupeStack
ProductUltimate Bug Killer ConcentrateAmazon UK search — listing, not a confirmed sellerDeltamethrin 15 g/L emulsion concentrate
Pack / unit30 millilitres · £8.991 litre · £39.99
ActiveDeltamethrin at 1.5%Carrier: Oil-in-water emulsion with solvents1.5% bulkC22H19Br2NO3
CAS numberNot disclosed on pack52918-63-5
Working strengthReady-to-use packDilute 0.5 ml in 1 L water (outdoor Provanto band; 1 ml/L indoors)
Cost per litre£299.67 / L typical pack£0.02 / L mixed from bulk
Headline savingBaseline82% cheaper
COSHH / PPEFollow the branded SDS
Gloves. Chemical-resistant gloves (nitrile or neoprene)Eye protection. Indirect-vent splash goggles — not ordinary spectaclesVentilation. Use outdoors or with mechanical extraction

Active ingredient and cheaper alternative — FAQ

Is this the same as Nippon ant powder?

Same broad family (pyrethroid insecticides) but different molecules and jobs. Nippon powder is permethrin dust (CAS 52645-53-1) for ant runs. Provanto is deltamethrin (CAS 52918-63-5) as a foliar spray. Never put bug-killer concentrate on skin or in an ant puffer.

Is this Provanto Fungus Fighter?

No. Fungus Fighter is tebuconazole — a triazole fungicide. Ultimate Bug Killer is deltamethrin. Different pests, different HSE numbers, different PPE.

How do you mix the Ultimate Bug Killer Concentrate dupe stack?

Pesticide: very toxic to aquatic life. Read the MAPP label on the pack you buy. Gloves, goggles. Spray at dusk if bees are foraging; keep off ponds, water butts and fish tanks. Outdoor (except raspberry beetle): 0.5 ml of 15 g/L deltamethrin emulsion per litre of water. Indoor / greenhouse: 1 ml per litre. Raspberry beetle: 0.8 ml per litre on the labelled crops. Spray both leaf faces until glistening. Do not exceed the labelled number of applications or harvest interval. Keep pets off until dry. 1 litre of 15 g/L concentrate at 0.5 ml/L makes about 2,000 litres of outdoor spray — many 30 ml garden-centre bottles. Buy amateur-labelled 15 g/L deltamethrin a householder can legally apply. Do not invent a stronger mix from agricultural EC. Triple-rinse the sprayer; never share it with herbicides without a thorough wash.

DupeStack provides chemical concentration data and educational mixing guides only. Wellness pages compare food supplements, not medicines or prescribed treatments. Always review the supplier Safety Data Sheet (SDS) and comply with UK Health and Safety Executive (HSE) and COSHH regulations when handling concentrated substances. Mixing and storage are at your own risk. Some links are affiliate advertisements (Amazon Associates, eBay Partner Network, and Awin when those programmes are live). Commissions do not change listed concentrations or calculator output.

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