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Product questions and answers

    How long does Delta Dust take to work?
  1. 0 votes
    Q How long does Delta Dust take to work? answer now
    Asked on December 18, 2025 2:07 PM
    A Delta Dust begins working as soon as insects contact the dust, with many pests affected within hours of exposure. Most insects die within 24–48 hours, while continued population reduction occurs over several days as insects move through treated areas. Delta Dust contains deltamethrin, a powerful synthetic pyrethroid combined with a fine, moisture-resistant dust formulation. Insects pick up the dust as they crawl through treated voids, cracks, and crevices, carrying it back to harborages where it continues to spread. Because Delta Dust remains effective even in damp or humid environments, it provides long-lasting residual control when left undisturbed. For best results, apply Delta Dust lightly to wall voids, electrical outlets, attics, crawl spaces, cracks, and crevices, and avoid over-application so insects can move naturally through the treated areas.
  2. What is the correct application rate for Delta Dust Insecticide?
  3. 0 votes
    Q What is the correct application rate for Delta Dust Insecticide? answer now
    Asked on August 20, 2025 9:12 PM
    A The application rate for Delta Dust® Insecticide is: General Use: Apply 2 to 3 grams of Delta Dust per square yard of treatment area. Crack & Crevice Applications: Use a hand duster to apply a thin, even layer of dust into cracks, voids, wall voids, attics, crawlspaces, and other pest-harboring areas. Ant and Termite Treatments: Apply dust directly into galleries, wall voids, and entry points where ants or termites are active. Do not exceed 0.5 lb. per 1,000 square feet in a single application. Application Tips: Avoid over-applying; a light film of dust is more effective than heavy piles. Reapply only if dust is removed or if pest activity persists. Do not apply directly to open surfaces where people or pets may contact it. 👉 Delta Dust is the only 100% waterproof insecticidal dust, making it highly effective in damp or wet environments like basements, crawlspaces, and around plumbing penetrations.
  4. will this kill Blue Mud Wasp?
  5. 0 votes
    Q will this kill Blue Mud Wasp? answer now
    Asked on July 18, 2024 10:01 AM
    A

    Yes, Delta Dust will kill Blue Mud Wasps.  You will want to treat the wasps in the evening when they are less active and you will want to wear protective clothing to avoid being stung. 

  6. Will Delta Dust kill ground beetles and spiders and can I use it in a motel?
  7. 0 votes
    Q Will Delta Dust kill ground beetles and spiders and can I use it in a motel? answer now
    Asked on March 25, 2023 8:41 AM
    A

    Yes, Delta Dust will kill ground beetles and spiders in and around motels and hotels. It is labeled for those uses and many others making it a great option for you.

  8. Can Delta Dust be used in food handlings establishments?
  9. 0 votes
    Q Can Delta Dust be used in food handlings establishments? answer now
    Asked on March 25, 2023 8:37 AM
    A

    Yes, Delta dust can be used in food establishments like kitchens and restaurants.

  10. Would Delta Dust be good around electrical outlets?
  11. 0 votes
    Q Would Delta Dust be good around electrical outlets? answer now
    Asked on March 25, 2023 8:32 AM
    A

    Yes, Delta Dust is a great alterative to using liquid sprays or where liquid pesticides can not be used like electrical outlets.

  12. Do I need any special equipment to use it?
  13. 0 votes
    Q Do I need any special equipment to use it? answer now
    Asked on August 3, 2021 3:49 PM
    A No . Delta dust comes in a ready to use bottle. That being said we prefer to use a hand held duster do to the fact we can control the output better and it provides a better reach.
  14. What is the shelf life?
  15. 0 votes
    Q What is the shelf life? answer now
    Asked on August 3, 2021 3:47 PM
    A Delta Dust has a shelf life of at least 5 years and possibly longer when stored properly in a dry place.
  16. Will this kill wasps?
  17. 0 votes
    Q Will this kill wasps? answer now
    Asked on August 3, 2021 3:44 PM
    A Yes, Delta Dust works great on wasps and holds up great outdoors due to the fact it is waterproof.
  18. Is it safe in kitchens?
  19. 0 votes
    Q Is it safe in kitchens? answer now
    Asked on July 27, 2021 7:44 PM
    A This product has been approved for use in commercial food-handling establishments making it ideal for wet and damp areas that pests find attractive.
  20. Can you use it outdoors also?
  21. 0 votes
    Q Can you use it outdoors also? answer now
    Asked on July 27, 2021 7:43 PM
    A Delta Dust is odor-free, can be used indoors and outdoors, and has a long residual that will continue killing insects for up to eight months.
  22. Can it be used in drains?
  23. 0 votes
    Q Can it be used in drains? answer now
    Asked on July 27, 2021 7:41 PM
    A Delta Dust is not labeled for sewers and drains.
  24. Is it waterproof?
  25. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:39 PM
    A Looking for something long-lasting and waterproof to take care of your pest problem? Delta Dust is the product you have been looking for. Delta Dust contains Deltamethrin and is the only waterproof dust on the market.
  26. Is it waterproof?
  27. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:38 PM
    A Yes

Delta Dust® Insecticide

(3 customer reviews)

Order Before 2:00pm PST For Same Day Shipping!
Most Items are received within 2-4 days of ordering!
FOR LARGE ORDERS, PLEASE EMAIL: [email protected] OR CALL 877-708-1974

Price range: $29.50 through $86.25

CUSTOMERS ALSO BOUGHT:
-
+
$60.79
-
+
$17.59
-
+
$19.68

Fast Free Shipping!

Long-Lasting Dust Control for Voids, Wall Cavities & Hard-to-Reach Pests

Delta Dust® Insecticide is a professional-grade insecticidal dust designed for long-lasting control of crawling insects in dry, hidden, and hard-to-reach areas. Unlike liquid sprays that break down quickly or can’t penetrate voids, Delta Dust delivers extended residual protection in places pests use as nesting and travel zones.

If you’re dealing with insects in wall voids, attics, crawl spaces, electrical boxes, or cracks and crevices, Delta Dust is one of the most effective tools available.

Why Delta Dust® Works Where Sprays Fail

Many infestations persist because insects hide in areas liquid insecticides cannot reach or do not last.

Delta Dust uses deltamethrin, a powerful synthetic pyrethroid, formulated as a fine, dry dust that:

  • Penetrates deep into voids and cavities
  • Clings to insect bodies as they crawl through treated areas
  • Continues working as long as it stays dry

This makes Delta Dust ideal for long-term control, not just short-term knockdown.

Product Features:

  • Approved for use in commercial food-handling establishments
  • Labeled for roach control application directly into drains that lead to sewers
  • Kills crawling insects for up to eight months when left undisturbed
  • For use indoors and outdoors
  • Odorless

Sizes:

  • 1 pound
  • 5 pounds

Product questions and answers

    How long does Delta Dust take to work?
  1. 0 votes
    Q How long does Delta Dust take to work? answer now
    Asked on December 18, 2025 2:07 PM
    A Delta Dust begins working as soon as insects contact the dust, with many pests affected within hours of exposure. Most insects die within 24–48 hours, while continued population reduction occurs over several days as insects move through treated areas. Delta Dust contains deltamethrin, a powerful synthetic pyrethroid combined with a fine, moisture-resistant dust formulation. Insects pick up the dust as they crawl through treated voids, cracks, and crevices, carrying it back to harborages where it continues to spread. Because Delta Dust remains effective even in damp or humid environments, it provides long-lasting residual control when left undisturbed. For best results, apply Delta Dust lightly to wall voids, electrical outlets, attics, crawl spaces, cracks, and crevices, and avoid over-application so insects can move naturally through the treated areas.
  2. What is the correct application rate for Delta Dust Insecticide?
  3. 0 votes
    Q What is the correct application rate for Delta Dust Insecticide? answer now
    Asked on August 20, 2025 9:12 PM
    A The application rate for Delta Dust® Insecticide is: General Use: Apply 2 to 3 grams of Delta Dust per square yard of treatment area. Crack & Crevice Applications: Use a hand duster to apply a thin, even layer of dust into cracks, voids, wall voids, attics, crawlspaces, and other pest-harboring areas. Ant and Termite Treatments: Apply dust directly into galleries, wall voids, and entry points where ants or termites are active. Do not exceed 0.5 lb. per 1,000 square feet in a single application. Application Tips: Avoid over-applying; a light film of dust is more effective than heavy piles. Reapply only if dust is removed or if pest activity persists. Do not apply directly to open surfaces where people or pets may contact it. 👉 Delta Dust is the only 100% waterproof insecticidal dust, making it highly effective in damp or wet environments like basements, crawlspaces, and around plumbing penetrations.
  4. will this kill Blue Mud Wasp?
  5. 0 votes
    Q will this kill Blue Mud Wasp? answer now
    Asked on July 18, 2024 10:01 AM
    A

    Yes, Delta Dust will kill Blue Mud Wasps.  You will want to treat the wasps in the evening when they are less active and you will want to wear protective clothing to avoid being stung. 

  6. Will Delta Dust kill ground beetles and spiders and can I use it in a motel?
  7. 0 votes
    Q Will Delta Dust kill ground beetles and spiders and can I use it in a motel? answer now
    Asked on March 25, 2023 8:41 AM
    A

    Yes, Delta Dust will kill ground beetles and spiders in and around motels and hotels. It is labeled for those uses and many others making it a great option for you.

  8. Can Delta Dust be used in food handlings establishments?
  9. 0 votes
    Q Can Delta Dust be used in food handlings establishments? answer now
    Asked on March 25, 2023 8:37 AM
    A

    Yes, Delta dust can be used in food establishments like kitchens and restaurants.

  10. Would Delta Dust be good around electrical outlets?
  11. 0 votes
    Q Would Delta Dust be good around electrical outlets? answer now
    Asked on March 25, 2023 8:32 AM
    A

    Yes, Delta Dust is a great alterative to using liquid sprays or where liquid pesticides can not be used like electrical outlets.

  12. Do I need any special equipment to use it?
  13. 0 votes
    Q Do I need any special equipment to use it? answer now
    Asked on August 3, 2021 3:49 PM
    A No . Delta dust comes in a ready to use bottle. That being said we prefer to use a hand held duster do to the fact we can control the output better and it provides a better reach.
  14. What is the shelf life?
  15. 0 votes
    Q What is the shelf life? answer now
    Asked on August 3, 2021 3:47 PM
    A Delta Dust has a shelf life of at least 5 years and possibly longer when stored properly in a dry place.
  16. Will this kill wasps?
  17. 0 votes
    Q Will this kill wasps? answer now
    Asked on August 3, 2021 3:44 PM
    A Yes, Delta Dust works great on wasps and holds up great outdoors due to the fact it is waterproof.
  18. Is it safe in kitchens?
  19. 0 votes
    Q Is it safe in kitchens? answer now
    Asked on July 27, 2021 7:44 PM
    A This product has been approved for use in commercial food-handling establishments making it ideal for wet and damp areas that pests find attractive.
  20. Can you use it outdoors also?
  21. 0 votes
    Q Can you use it outdoors also? answer now
    Asked on July 27, 2021 7:43 PM
    A Delta Dust is odor-free, can be used indoors and outdoors, and has a long residual that will continue killing insects for up to eight months.
  22. Can it be used in drains?
  23. 0 votes
    Q Can it be used in drains? answer now
    Asked on July 27, 2021 7:41 PM
    A Delta Dust is not labeled for sewers and drains.
  24. Is it waterproof?
  25. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:39 PM
    A Looking for something long-lasting and waterproof to take care of your pest problem? Delta Dust is the product you have been looking for. Delta Dust contains Deltamethrin and is the only waterproof dust on the market.
  26. Is it waterproof?
  27. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:38 PM
    A Yes

You might also like...

Description

What Pests Does Delta Dust® Control?

Delta Dust is labeled to control a wide range of structural pests, including:

  • Ants
  • Cockroaches
  • Spiders
  • Silverfish
  • Earwigs
  • Wasps (void and nest applications)
  • Beetles
  • Other crawling insects

Because pests must walk through the dust, Delta Dust is especially effective against insects that hide during the day and emerge at night.


How Delta Dust® Insecticide Works

After application, Delta Dust forms a residual dust barrier inside treated areas. When insects crawl through it:

  1. Dust particles cling to the insect’s body
  2. The active ingredient is absorbed through contact
  3. The insect dies shortly after exposure
  4. Other insects entering the area are also controlled

Because Delta Dust is non-repellent, insects do not avoid treated areas, increasing overall exposure and effectiveness.


How Long Does Delta Dust® Take to Work?

Delta Dust begins working soon after insects contact the treated dust. Most users notice a reduction in pest activity within 24–48 hours, with continued population decline over the following several days.

Unlike sprays that lose effectiveness quickly, Delta Dust continues killing insects for months in dry, undisturbed locations.


How Long Does Delta Dust® Last?

One of Delta Dust’s biggest advantages is longevity.

  • In dry wall voids, attics, crawl spaces, and electrical boxes, Delta Dust can remain effective for months or longer
  • As long as the dust stays dry and undisturbed, it continues working

This makes Delta Dust ideal for preventative treatments and long-term structural protection.


Where to Apply Delta Dust®

Delta Dust is commonly applied to:

  • Wall voids
  • Attics and crawl spaces
  • Electrical outlets and switch boxes
  • Cracks and crevices
  • Plumbing penetrations
  • Structural voids and gaps

It is not intended for broadcast application and should be applied lightly using a hand duster or bulb duster.


Delta Dust® vs Liquid Insecticides

Compared to sprays:

  • Lasts significantly longer in protected areas
  • Reaches hidden nesting and travel zones
  • Does not break down from light or heat as quickly

Compared to aerosol dusts:

  • More professional-grade
  • Better residual longevity
  • Designed for structural pest control programs

Delta Dust is often used as a supplement to liquid treatments, not a replacement.


Is Delta Dust® Safe to Use in Homes?

When applied according to the label, Delta Dust is safe for residential use. It should only be applied to voids and inaccessible areas, not open surfaces. People and pets should avoid contact with treated areas.


Who Should Use Delta Dust®?

Delta Dust is ideal for:

  • Persistent ant or roach problems
  • Spider infestations in wall voids
  • Preventative attic or crawl space treatments
  • DIY users who want professional-grade tools
  • Situations where sprays cannot reach or last

If pests are hiding where sprays can’t reach, Delta Dust is the solution.

EPA Registration 432-772

Additional information

Weight 1 lbs
Dimensions 9.5 × 2.3 × 4 in
Size

,

Active Ingredient

Deltamethrin 0.05%

Manufacturer

  • Bayer
  • Mfg. No.: 4191071, 4191098
  • UPC: 0785740193808, 073321560416

For Use In

Indoors and outdoors, aircraft, bakeries, breweries, cafeterias, hospitals, restaurants, schools, warehouses and many more.

See label for complete list

Target Pests

Ants,Bed Bugs,Bees,Boxelder Bugs,Carpenter Ants,Carpenter Bees,Carpet Beetles,Centipedes,Cockroaches,Crickets,Fleas,Firebrats

Food Processing Pests (Fruit flies, Phorid flies, Sciarid flies). Ground Beetles, Millipedes, Pantry Pests (cadellas, cheese mites, cigarette beetles, confused flour beetles, dark meal worms, dermestids, drugstore beetles, grain mites, granary weevils, lesser grain borers, lesser mealworms, merchant grain beetles, red flour beetles, rice weevils, rusty grain beetles, saw-tooth grain beetles, spider beetles, tobacco moths, yellow meal worms, warehouse moths, Indian meal, Mediterranean flour)

Plant Pests (aphids, beet armyworms, blister beetles, boxelder bugs, certain leafminers [Boxwood, Holly, Oak, Spruce Needle], elm leaf beetles, flea beetles, Japanese beetles, leafhoppers, leafrollers, orange tortix, periodical cicadas, plant bugs, rose chafers, rose midges, rose slugs, tent caterpillars, thrips, weevils)

Scorpions

Silverfish

Slugs

Sowbugs

Spiders

Sowbugs

Termites

Ticks

Wasps

Webbing Clothes Moths


* See label for complete list

Not For Sale To

NY (Restricted To Licensed Applicators Only)

3 reviews for Delta Dust® Insecticide

Powered byCusRev
5.0
Based on 3 reviews
5 star
100
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
  1. Anonymous (verified owner)

    usConnecticut, United States

    (1) (0)
  2. Anonymous (verified owner)

    usNew Jersey, United States

    (1) (0)
  3. Verified Buyer (verified owner)

    usCalifornia, United States

    worked perfectly

    (0) (0)

Only logged in customers who have purchased this product may leave a review.

Product questions and answers

    How long does Delta Dust take to work?
  1. 0 votes
    Q How long does Delta Dust take to work? answer now
    Asked on December 18, 2025 2:07 PM
    A Delta Dust begins working as soon as insects contact the dust, with many pests affected within hours of exposure. Most insects die within 24–48 hours, while continued population reduction occurs over several days as insects move through treated areas. Delta Dust contains deltamethrin, a powerful synthetic pyrethroid combined with a fine, moisture-resistant dust formulation. Insects pick up the dust as they crawl through treated voids, cracks, and crevices, carrying it back to harborages where it continues to spread. Because Delta Dust remains effective even in damp or humid environments, it provides long-lasting residual control when left undisturbed. For best results, apply Delta Dust lightly to wall voids, electrical outlets, attics, crawl spaces, cracks, and crevices, and avoid over-application so insects can move naturally through the treated areas.
  2. What is the correct application rate for Delta Dust Insecticide?
  3. 0 votes
    Q What is the correct application rate for Delta Dust Insecticide? answer now
    Asked on August 20, 2025 9:12 PM
    A The application rate for Delta Dust® Insecticide is: General Use: Apply 2 to 3 grams of Delta Dust per square yard of treatment area. Crack & Crevice Applications: Use a hand duster to apply a thin, even layer of dust into cracks, voids, wall voids, attics, crawlspaces, and other pest-harboring areas. Ant and Termite Treatments: Apply dust directly into galleries, wall voids, and entry points where ants or termites are active. Do not exceed 0.5 lb. per 1,000 square feet in a single application. Application Tips: Avoid over-applying; a light film of dust is more effective than heavy piles. Reapply only if dust is removed or if pest activity persists. Do not apply directly to open surfaces where people or pets may contact it. 👉 Delta Dust is the only 100% waterproof insecticidal dust, making it highly effective in damp or wet environments like basements, crawlspaces, and around plumbing penetrations.
  4. will this kill Blue Mud Wasp?
  5. 0 votes
    Q will this kill Blue Mud Wasp? answer now
    Asked on July 18, 2024 10:01 AM
    A

    Yes, Delta Dust will kill Blue Mud Wasps.  You will want to treat the wasps in the evening when they are less active and you will want to wear protective clothing to avoid being stung. 

  6. Will Delta Dust kill ground beetles and spiders and can I use it in a motel?
  7. 0 votes
    Q Will Delta Dust kill ground beetles and spiders and can I use it in a motel? answer now
    Asked on March 25, 2023 8:41 AM
    A

    Yes, Delta Dust will kill ground beetles and spiders in and around motels and hotels. It is labeled for those uses and many others making it a great option for you.

  8. Can Delta Dust be used in food handlings establishments?
  9. 0 votes
    Q Can Delta Dust be used in food handlings establishments? answer now
    Asked on March 25, 2023 8:37 AM
    A

    Yes, Delta dust can be used in food establishments like kitchens and restaurants.

  10. Would Delta Dust be good around electrical outlets?
  11. 0 votes
    Q Would Delta Dust be good around electrical outlets? answer now
    Asked on March 25, 2023 8:32 AM
    A

    Yes, Delta Dust is a great alterative to using liquid sprays or where liquid pesticides can not be used like electrical outlets.

  12. Do I need any special equipment to use it?
  13. 0 votes
    Q Do I need any special equipment to use it? answer now
    Asked on August 3, 2021 3:49 PM
    A No . Delta dust comes in a ready to use bottle. That being said we prefer to use a hand held duster do to the fact we can control the output better and it provides a better reach.
  14. What is the shelf life?
  15. 0 votes
    Q What is the shelf life? answer now
    Asked on August 3, 2021 3:47 PM
    A Delta Dust has a shelf life of at least 5 years and possibly longer when stored properly in a dry place.
  16. Will this kill wasps?
  17. 0 votes
    Q Will this kill wasps? answer now
    Asked on August 3, 2021 3:44 PM
    A Yes, Delta Dust works great on wasps and holds up great outdoors due to the fact it is waterproof.
  18. Is it safe in kitchens?
  19. 0 votes
    Q Is it safe in kitchens? answer now
    Asked on July 27, 2021 7:44 PM
    A This product has been approved for use in commercial food-handling establishments making it ideal for wet and damp areas that pests find attractive.
  20. Can you use it outdoors also?
  21. 0 votes
    Q Can you use it outdoors also? answer now
    Asked on July 27, 2021 7:43 PM
    A Delta Dust is odor-free, can be used indoors and outdoors, and has a long residual that will continue killing insects for up to eight months.
  22. Can it be used in drains?
  23. 0 votes
    Q Can it be used in drains? answer now
    Asked on July 27, 2021 7:41 PM
    A Delta Dust is not labeled for sewers and drains.
  24. Is it waterproof?
  25. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:39 PM
    A Looking for something long-lasting and waterproof to take care of your pest problem? Delta Dust is the product you have been looking for. Delta Dust contains Deltamethrin and is the only waterproof dust on the market.
  26. Is it waterproof?
  27. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:38 PM
    A Yes

Delta Dust® Insecticide

(3 customer reviews)

Order Before 2:00pm PST For Same Day Shipping!
Most Items are received within 2-4 days of ordering!
FOR LARGE ORDERS, PLEASE EMAIL: [email protected] OR CALL 877-708-1974

Fast Free Shipping!

Long-Lasting Dust Control for Voids, Wall Cavities & Hard-to-Reach Pests

Delta Dust® Insecticide is a professional-grade insecticidal dust designed for long-lasting control of crawling insects in dry, hidden, and hard-to-reach areas. Unlike liquid sprays that break down quickly or can’t penetrate voids, Delta Dust delivers extended residual protection in places pests use as nesting and travel zones.

If you’re dealing with insects in wall voids, attics, crawl spaces, electrical boxes, or cracks and crevices, Delta Dust is one of the most effective tools available.

Why Delta Dust® Works Where Sprays Fail

Many infestations persist because insects hide in areas liquid insecticides cannot reach or do not last.

Delta Dust uses deltamethrin, a powerful synthetic pyrethroid, formulated as a fine, dry dust that:

  • Penetrates deep into voids and cavities
  • Clings to insect bodies as they crawl through treated areas
  • Continues working as long as it stays dry

This makes Delta Dust ideal for long-term control, not just short-term knockdown.

Product Features:

  • Approved for use in commercial food-handling establishments
  • Labeled for roach control application directly into drains that lead to sewers
  • Kills crawling insects for up to eight months when left undisturbed
  • For use indoors and outdoors
  • Odorless

Sizes:

  • 1 pound
  • 5 pounds

Price range: $29.50 through $86.25

CUSTOMERS ALSO BOUGHT:
-
+
$60.79
-
+
$17.59
-
+
$19.68

Description

What Pests Does Delta Dust® Control?

Delta Dust is labeled to control a wide range of structural pests, including:

  • Ants
  • Cockroaches
  • Spiders
  • Silverfish
  • Earwigs
  • Wasps (void and nest applications)
  • Beetles
  • Other crawling insects

Because pests must walk through the dust, Delta Dust is especially effective against insects that hide during the day and emerge at night.


How Delta Dust® Insecticide Works

After application, Delta Dust forms a residual dust barrier inside treated areas. When insects crawl through it:

  1. Dust particles cling to the insect’s body
  2. The active ingredient is absorbed through contact
  3. The insect dies shortly after exposure
  4. Other insects entering the area are also controlled

Because Delta Dust is non-repellent, insects do not avoid treated areas, increasing overall exposure and effectiveness.


How Long Does Delta Dust® Take to Work?

Delta Dust begins working soon after insects contact the treated dust. Most users notice a reduction in pest activity within 24–48 hours, with continued population decline over the following several days.

Unlike sprays that lose effectiveness quickly, Delta Dust continues killing insects for months in dry, undisturbed locations.


How Long Does Delta Dust® Last?

One of Delta Dust’s biggest advantages is longevity.

  • In dry wall voids, attics, crawl spaces, and electrical boxes, Delta Dust can remain effective for months or longer
  • As long as the dust stays dry and undisturbed, it continues working

This makes Delta Dust ideal for preventative treatments and long-term structural protection.


Where to Apply Delta Dust®

Delta Dust is commonly applied to:

  • Wall voids
  • Attics and crawl spaces
  • Electrical outlets and switch boxes
  • Cracks and crevices
  • Plumbing penetrations
  • Structural voids and gaps

It is not intended for broadcast application and should be applied lightly using a hand duster or bulb duster.


Delta Dust® vs Liquid Insecticides

Compared to sprays:

  • Lasts significantly longer in protected areas
  • Reaches hidden nesting and travel zones
  • Does not break down from light or heat as quickly

Compared to aerosol dusts:

  • More professional-grade
  • Better residual longevity
  • Designed for structural pest control programs

Delta Dust is often used as a supplement to liquid treatments, not a replacement.


Is Delta Dust® Safe to Use in Homes?

When applied according to the label, Delta Dust is safe for residential use. It should only be applied to voids and inaccessible areas, not open surfaces. People and pets should avoid contact with treated areas.


Who Should Use Delta Dust®?

Delta Dust is ideal for:

  • Persistent ant or roach problems
  • Spider infestations in wall voids
  • Preventative attic or crawl space treatments
  • DIY users who want professional-grade tools
  • Situations where sprays cannot reach or last

If pests are hiding where sprays can’t reach, Delta Dust is the solution.

EPA Registration 432-772

Additional information

Weight 1 lbs
Dimensions 9.5 × 2.3 × 4 in
Size

,

Active Ingredient

Deltamethrin 0.05%

Manufacturer

  • Bayer
  • Mfg. No.: 4191071, 4191098
  • UPC: 0785740193808, 073321560416

For Use In

Indoors and outdoors, aircraft, bakeries, breweries, cafeterias, hospitals, restaurants, schools, warehouses and many more.

See label for complete list

Target Pests

Ants,Bed Bugs,Bees,Boxelder Bugs,Carpenter Ants,Carpenter Bees,Carpet Beetles,Centipedes,Cockroaches,Crickets,Fleas,Firebrats

Food Processing Pests (Fruit flies, Phorid flies, Sciarid flies). Ground Beetles, Millipedes, Pantry Pests (cadellas, cheese mites, cigarette beetles, confused flour beetles, dark meal worms, dermestids, drugstore beetles, grain mites, granary weevils, lesser grain borers, lesser mealworms, merchant grain beetles, red flour beetles, rice weevils, rusty grain beetles, saw-tooth grain beetles, spider beetles, tobacco moths, yellow meal worms, warehouse moths, Indian meal, Mediterranean flour)

Plant Pests (aphids, beet armyworms, blister beetles, boxelder bugs, certain leafminers [Boxwood, Holly, Oak, Spruce Needle], elm leaf beetles, flea beetles, Japanese beetles, leafhoppers, leafrollers, orange tortix, periodical cicadas, plant bugs, rose chafers, rose midges, rose slugs, tent caterpillars, thrips, weevils)

Scorpions

Silverfish

Slugs

Sowbugs

Spiders

Sowbugs

Termites

Ticks

Wasps

Webbing Clothes Moths


* See label for complete list

Not For Sale To

NY (Restricted To Licensed Applicators Only)

3 reviews for Delta Dust® Insecticide

Powered byCusRev
5.0
Based on 3 reviews
5 star
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  1. Anonymous (verified owner)

    usConnecticut, United States

    (1) (0)
  2. Anonymous (verified owner)

    usNew Jersey, United States

    (1) (0)
  3. Verified Buyer (verified owner)

    usCalifornia, United States

    worked perfectly

    (0) (0)

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Product questions and answers

    How long does Delta Dust take to work?
  1. 0 votes
    Q How long does Delta Dust take to work? answer now
    Asked on December 18, 2025 2:07 PM
    A Delta Dust begins working as soon as insects contact the dust, with many pests affected within hours of exposure. Most insects die within 24–48 hours, while continued population reduction occurs over several days as insects move through treated areas. Delta Dust contains deltamethrin, a powerful synthetic pyrethroid combined with a fine, moisture-resistant dust formulation. Insects pick up the dust as they crawl through treated voids, cracks, and crevices, carrying it back to harborages where it continues to spread. Because Delta Dust remains effective even in damp or humid environments, it provides long-lasting residual control when left undisturbed. For best results, apply Delta Dust lightly to wall voids, electrical outlets, attics, crawl spaces, cracks, and crevices, and avoid over-application so insects can move naturally through the treated areas.
  2. What is the correct application rate for Delta Dust Insecticide?
  3. 0 votes
    Q What is the correct application rate for Delta Dust Insecticide? answer now
    Asked on August 20, 2025 9:12 PM
    A The application rate for Delta Dust® Insecticide is: General Use: Apply 2 to 3 grams of Delta Dust per square yard of treatment area. Crack & Crevice Applications: Use a hand duster to apply a thin, even layer of dust into cracks, voids, wall voids, attics, crawlspaces, and other pest-harboring areas. Ant and Termite Treatments: Apply dust directly into galleries, wall voids, and entry points where ants or termites are active. Do not exceed 0.5 lb. per 1,000 square feet in a single application. Application Tips: Avoid over-applying; a light film of dust is more effective than heavy piles. Reapply only if dust is removed or if pest activity persists. Do not apply directly to open surfaces where people or pets may contact it. 👉 Delta Dust is the only 100% waterproof insecticidal dust, making it highly effective in damp or wet environments like basements, crawlspaces, and around plumbing penetrations.
  4. will this kill Blue Mud Wasp?
  5. 0 votes
    Q will this kill Blue Mud Wasp? answer now
    Asked on July 18, 2024 10:01 AM
    A

    Yes, Delta Dust will kill Blue Mud Wasps.  You will want to treat the wasps in the evening when they are less active and you will want to wear protective clothing to avoid being stung. 

  6. Will Delta Dust kill ground beetles and spiders and can I use it in a motel?
  7. 0 votes
    Q Will Delta Dust kill ground beetles and spiders and can I use it in a motel? answer now
    Asked on March 25, 2023 8:41 AM
    A

    Yes, Delta Dust will kill ground beetles and spiders in and around motels and hotels. It is labeled for those uses and many others making it a great option for you.

  8. Can Delta Dust be used in food handlings establishments?
  9. 0 votes
    Q Can Delta Dust be used in food handlings establishments? answer now
    Asked on March 25, 2023 8:37 AM
    A

    Yes, Delta dust can be used in food establishments like kitchens and restaurants.

  10. Would Delta Dust be good around electrical outlets?
  11. 0 votes
    Q Would Delta Dust be good around electrical outlets? answer now
    Asked on March 25, 2023 8:32 AM
    A

    Yes, Delta Dust is a great alterative to using liquid sprays or where liquid pesticides can not be used like electrical outlets.

  12. Do I need any special equipment to use it?
  13. 0 votes
    Q Do I need any special equipment to use it? answer now
    Asked on August 3, 2021 3:49 PM
    A No . Delta dust comes in a ready to use bottle. That being said we prefer to use a hand held duster do to the fact we can control the output better and it provides a better reach.
  14. What is the shelf life?
  15. 0 votes
    Q What is the shelf life? answer now
    Asked on August 3, 2021 3:47 PM
    A Delta Dust has a shelf life of at least 5 years and possibly longer when stored properly in a dry place.
  16. Will this kill wasps?
  17. 0 votes
    Q Will this kill wasps? answer now
    Asked on August 3, 2021 3:44 PM
    A Yes, Delta Dust works great on wasps and holds up great outdoors due to the fact it is waterproof.
  18. Is it safe in kitchens?
  19. 0 votes
    Q Is it safe in kitchens? answer now
    Asked on July 27, 2021 7:44 PM
    A This product has been approved for use in commercial food-handling establishments making it ideal for wet and damp areas that pests find attractive.
  20. Can you use it outdoors also?
  21. 0 votes
    Q Can you use it outdoors also? answer now
    Asked on July 27, 2021 7:43 PM
    A Delta Dust is odor-free, can be used indoors and outdoors, and has a long residual that will continue killing insects for up to eight months.
  22. Can it be used in drains?
  23. 0 votes
    Q Can it be used in drains? answer now
    Asked on July 27, 2021 7:41 PM
    A Delta Dust is not labeled for sewers and drains.
  24. Is it waterproof?
  25. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:39 PM
    A Looking for something long-lasting and waterproof to take care of your pest problem? Delta Dust is the product you have been looking for. Delta Dust contains Deltamethrin and is the only waterproof dust on the market.
  26. Is it waterproof?
  27. 0 votes
    Q Is it waterproof? answer now
    Asked on July 27, 2021 7:38 PM
    A Yes

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