How to Use Max Ant & Roach Spray by Raid
At a glance
- Efficacy: Workhorse
- Best job: Fast, direct-hit knockdown of ants and roaches you can see, plus a longer-lasting residual on the cracks and harborage you actually treat with the wand
- Format: Ready-to-use (RTU) pressurized aerosol with a 2-way spray — a wand for cracks, a wider fold-down pattern for larger harborage surfaces — no mixing
- Technique: Easy technique
Does this product actually work?
A genuine workhorse for direct-hit knockdown with a longer residual than the standard can — not a fix for a colony already established behind your walls.
Raid Max is a genuinely different formula from the standard Raid Ant & Roach can — imiprothrin plus deltamethrin instead of imiprothrin plus cypermethrin — and the deltamethrin gives it a real edge in residual persistence when placed correctly with the wand into cracks. But it's still a repellent pyrethroid contact spray: it kills what it touches, doesn't reach the colony, and university research on this insecticide class found under 20% mortality against German cockroaches on treated surfaces. Treat it as a spot tool with a longer memory, not a cure, and pair it with baiting or professional treatment when sightings persist.
Best for
Killing the ants and roaches you can see and placing a longer-lasting residual deep in cracks with the wand.
Skip it for
Ending an established German cockroach infestation or a hidden ant colony — the deltamethrin residual is real, but independent testing shows pyrethroid contact sprays like this one still kill fewer than 1 in 5 German cockroaches on treated surfaces.
What it is — and what it's really for
The label is the law. Here's the honest read on the format, the one job it does well, and the job people wrongly buy it for.
The technique walkthrough
Where DIY succeeds or fails is in the placement, patience, and the small pro moves the label never mentions. Follow the label; these are the technique details on top of it.
The included wand is the whole point — thread it into cracks, wall-void gaps, and the backs of cabinets rather than fogging the open room, because deep placement is what separates this from an ordinary can.
Identify the harborage, not just the bug
Locate where ants and roaches are actually hiding — behind and under appliances, under sinks, along baseboards, cabinet corners, and cracks around pipes — before you spray anything.
Pro moveRoaches cluster near moisture and food; check under the sink, behind the fridge, and along baseboard gaps first.Common mistakeSpraying only the open counter or floor where you saw a bug cross — that's not where the harborage is.Shake well and choose the right spray pattern
Shake the can, then use the wand for cracks and crevices, or the folded, wider spray for broader harborage surfaces — hold it about 12 inches from the surface.
Treat the crack, not the room
Aim the wand directly into cracks, crevices, and harborage surfaces — behind appliances, under sinks, baseboard gaps — spraying until slightly wet, never to runoff.
Pro moveUse the wand to place residual deep in the crack, not just the visible surface — that's where the longer-residual claim actually matters.Common mistakeBroadcast-spraying an open room 'just in case' — most labels restrict this use pattern and it wastes the can while doing little.Hit visible trails and pests directly
If you see an ant trail or a roach, spray it directly for fast knockdown.
CautionKeep off food-contact and food-prep surfaces; wipe any overspray from those areas.Ventilate, and keep it separate from any bait
Let the room ventilate and treated surfaces dry fully before normal use resumes.
Pro moveIf you're also baiting for ants or roaches, treat spray zones and bait zones as separate territory — never overlapping.Common mistakeSpraying near or over a gel bait or bait station — the repellent residue drives roaches and ants away from bait they'd otherwise carry back to the colony.
Do & don't
- Use the wand for cracks and the fold-down pattern for broader harborage
- Treat cracks, crevices, and harborage — not the open floor
- Hit visible ants or roaches directly for knockdown
- Keep bait and spray zones physically separate
- Don't fog an open room hoping to hit hidden pests
- Don't spray over or near gel bait or bait stations
- Don't treat food-prep or food-contact surfaces
- Don't assume the longer residual claim means it will end an infestation
Where it works vs. where it fails
No product fixes everything. This is the honest boundary — the situations it genuinely handles, and the ones it simply won't.
Where it works
- A handful of visible ants or roaches need fast knockdown
- A specific crack, gap, or entry point needs spot-treating with a longer-lasting residual
- Occasional invaders — a stray roach, silverfish, or spider — show up indoors
- You want more residual persistence than a standard contact aerosol offers, applied correctly with the wand
Where it fails
- Nightly or daytime German cockroach sightings point to an established, reproducing population
- An ant trail keeps returning from a colony nesting outside or in a wall void
- The harborage is inside a wall void or other space the spray can't physically reach
- You're relying on the can alone instead of pairing it with baiting for real colony-level control
Mistakes that waste the product
Assuming Max is identical to standard Raid Ant & Roach
The formulas use different actives (imiprothrin + deltamethrin here vs. imiprothrin + cypermethrin in the standard can) — the printed panel, not the brand name, tells you what you're actually applying.
Fogging the room instead of treating the harborage
Wastes the can, achieves little residual value where pests actually hide, and creates unnecessary occupant exposure.
Spraying over or near a gel bait or bait station
The repellent pyrethroid residue drives foragers away from bait before they can carry it back to the colony.
Buying another can when 'it stopped working'
The can never targeted the source — the population rebounds because the colony or nest was never treated, not because the product failed.
What to expect — and when
This is a fast knockdown tool with a longer-than-average residual — judge it on what you see die today and how long a treated crack keeps working, not on whether pests ever come back.
Under a minute
Direct hits on ants and roaches knock them down fast — this is the product's genuine strength.
First few days to weeks
Fewer visible pests crossing treated cracks and baseboards as the deltamethrin residual keeps working longer than a standard pyrethroid can.
Beyond a few weeks
If sightings continue or return, that's the signal the population is established and beyond what a contact aerosol — however long its residual — can finish.
When to stop DIY & call a pro
A longer residual doesn't raise the ceiling on what a contact aerosol can finish. These are the honest signals the job has outgrown a spray can:
Roach sightings continue after 2-3 weeks of correctly aimed, harborage-focused spraying
University research found pyrethroid sprays in this class kill under 20% of German cockroaches on treated surfaces — an established population needs baiting or professional treatment, not more aerosol.
An ant trail keeps returning to the same spot after multiple treatments
Recurring activity points to a large colony or satellite nests the spray can't reach — only a small fraction of foragers ever cross a treated surface.
You see large black ants indoors or notice rustling or frass near moisture-damaged wood
Those point to carpenter ants nesting in structural wood — a wood-destroying pest that needs professional inspection, not a spot spray.
Any suspected termite or carpenter-ant activity inside structural wood
A consumer aerosol cannot verify or eliminate a colony inside a wall or joist.
When correctly aimed spot-spraying isn't holding the line, Anchor's licensed NH technicians identify and treat the actual harborage, colony, or nest with targeted professional methods. Free inspection, same-day service across southern and central New Hampshire.
Still seeing roaches after spraying?
Is it safe for pets & kids?
The short version lives here; the full per-species verdict lives on this product's pet-safety page.
This is a petroleum-distillate pyrethroid aerosol — ventilate the room during and after use, and keep kids and pets out until treated surfaces are fully dry. Never treat a suspected exposure at home.
Re-entry: Keep children and pets out of the treated area until surfaces are fully dry and the room is ventilated.
German roaches and carpenter ants in NH homes
In southern and central New Hampshire, German cockroaches survive only inside heated structures, and carpenter ants — not fire ants, which aren't a NH problem — are the state's dominant structural ant. Raid Max is a solid spot tool for the odd roach behind the toaster or an ant trail on the counter, with a longer memory than a standard can, but nightly roach sightings or large black ants near moisture-damaged wood point to a bigger problem than any spray can solve. Anchor Pest Services treats the actual source across Manchester, Nashua, Concord, and the surrounding towns.
Service area
Southern New Hampshire
Anchor Pest Services · NH license #782664 · NEPMA member · family-owned since 2017.
Frequently asked
Sources & further reading(5)
- [1]Raid / SC Johnson — Max Ant & Roach Killer product page
Verified actives (imiprothrin 0.101%, deltamethrin 0.050%), 2-way wand/fold spray format, labeled pest list, 'kills bugs fast — on contact' and residual claims (facts only)
manufacturerverified 2026-07-14 - [2]SC Johnson — What's Inside: Raid Max Ant & Roach Killer
Ingredient confirmation distinguishing the Max formula from standard Raid Ant & Roach
manufacturerverified 2026-07-14 - [3]Gordon et al., Journal of Economic Entomology (2024) — common consumer residual insecticides vs. German cockroach
Pyrethroid liquid/aerosol sprays killed under 20% of German cockroaches exposed to treated surfaces
academicverified 2026-07-14 - [4]University of Illinois Extension — 'DIY spray and aerosol products likely to fail in German cockroach control'
Consumer pyrethroid sprays likely to fail against established German cockroach populations
extensionverified 2026-07-14 - [5]UC IPM — Cockroaches (Home & Landscape)
Insecticide sprays alone will not eliminate cockroaches; repellent residues undercut bait programs
extensionverified 2026-07-14
Written & reviewed by
VerifiedDaniel Brady
NH-Licensed Pesticide Applicator · License #782664 (NHDAMF, RSA 430)
Daniel Brady is the New Hampshire–licensed applicator behind Anchor Pest Services, a family-owned pest control company serving the Manchester area since 2017.
Last updated July 2026
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Professional Pest Control
When a Spray Can Isn't Enough
A longer-residual contact aerosol still kills only what it touches — it can't end an established roach or ant colony. Anchor Pest Services treats the actual source with targeted, licensed methods across southern and central New Hampshire. Family-owned since 2017, NH license #782664.
- Targeted source treatment, not just spot spraying
- NH-licensed applicators (#782664)
- Free inspection — same-day service across southern NH
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