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Average Rating

Rating: 4.6

329 Reviews | 199 Q&A

Product Overview

DELTA DUST containing deltamethrin is the world's first and only 100% waterproof insecticide dust, so it works in the wet and damp places that insects love. Nothing short of running water will disturb it, making Delta Dust an ideal crack and crevice treatment. Delta Dust should be applied with a bellows hand duster (sold separately) which allows you to easily apply the dust in hard to reach areas. One application of Delta Dust will keep on killing insects for up to eight months.

Delta Dust for Bed Bug Control: Delta Dust should not be the only product used in the fight against bed bugs as it does not kill quick enough. For best results, use a contact kill such as Sterifab or Bedlam or an insecticide such as Temprid FX in addition to Delta Dust. Our Bed Bug Control Kits contain everything you need to treat for bed bugs.

Bayer Environmental Science Professional is now Envu.

Envu will continue to offer the same great insecticide, herbicide, and fungicide brands you depend on and trust – including Maxforce, Temprid FX, Suspend SC, Suspend Polyzone, Tempo SC Ultra, Celsius WG, Merit, and more. The packaging will slowly transition to Envu branding.

Product Documents

Features and Specs

Active Ingredient	Deltamethrin 0.05%
Target pests	Ants, Bedbugs, Cockroaches, Fleas, Silverfish, Scorpions, Sowbugs, Millipedes, and others * See label for complete list
For use in	Residential & Commercial, Cracks & Crevices Indoors and Outdoors
Formulation	Professional Product
NOT FOR SALE TO	MD, NY (Restricted To Licensed Applicators Only)
Coverage Area	1 lb. Covers 1,000 sq. ft.
Shipping Weight	1.12 lbs
Manufacturer	Envu (Formerly Bayer) (Mfg. Number: 4191071)
UPC	08101121001296
EPA Registration	432-772

Details

DeltaDust containing deltamethrin is the world's first and only 100% waterproof insecticide dust, so it works in the wet and damp places that insects love. Nothing short of running water will disturb Delta Dust, making Delta Dust an ideal crack and crevice treatment. Delta Dust should be applied with a bellows hand duster (sold seperately) which allows you to easily apply the dust in hard to reach areas. One application of Delta Dust will keep on killing insects for up to eight months.

DELTADUST Application Tips:

DeltaDust is intended for application with a hand or power duster (Actisol DPA or similar equipment), with a paint brush or by other suitable means, for hiding and runaway areas and other places where insects are found.
In living areas, apply in such a manner as to avoid depositions on exposed surfaces or introducing the material into the air. In the home, all food processing surfaces and utensils should be covered during treatment or thoroughly washed before use. Exposed food should be covered or removed.
To apply insecticide directly into cracks and crevices, use a bulbous duster or other suitable equipment. Apply lightly and uniformly to infested area. Pay particular attention to: cracks and crevices, service ducts, floors and ceilings, wall voids, around electrical and telephone fittings and equipment, around water and sewer pipes, under and behind cabinets, refrigerators and sinks, around windows and door frames, along baseboards, in attics and crawl spaces. The amount to be applied will vary with the site but should usually be in the range of 2-3 grams of DeltaDust per square yard (or 0.5 lbs per 1000 square feet).

Proper Dusting Tips:

When applying, the duster should be filled only halfway - no more than two-thirds full. This allows for adequate air space to create the desired air/dust mixture prior to application. If there is too much dust in the duster, clumps of dust on treated surfaces may result, leading to overapplication of the product and messy spills.
Between each squeeze, the duster should be shaken slightly to get dust floating inside the unit.
When applying dust into cracks and crevices and on surfaces, gently squeeze the duster to ensure the application of very thin layers of dust. When dusting correctly, you should barely be able to see the dust emerging from the tip of the duster.
Before relaxing your grip on the duster, pull it away from the surface or crack you are treating to prevent sucking up lint, moisture or debris. Small amounts of these items will eventually cause lumping and/or clogging of the duster.
Place several pebbles or small ball bearings in your duster to keep the dust agitated and ensure than any clumps are broken up prior to application. Also, always keep the screen inside the duster in place as this is designed to help maintain a fine dust consistency.
When treating around electrical outlets, use dusters fitted with plastic or fiberglass spouts, or place a small section of rubber hose or plastic tubing over the metal tip to avoid contacting electrical wires. These tubes will also enable you to reach around corners and beneath cabinet voids that would otherwise be impossible to treat.
Carry a small brush and a damp cloth. These can be used in the event that dust accidentally drifts out of cracks and crevices and onto non-target areas. Use the brush to push excess dust into cracks, and use the cloth to wipe up.
Do not apply dust to baseboards.
Apply dust carefully and judiciously so it does not travel to areas where it might represent a hazard. Prevent food contamination by not applying dust to where it could filter down onto food or food areas after it is applied. Also, be aware of any air currents that could transfer dust to containers or other objects, leading to food contamination.
If the applicator is to apply any kind of dust for extended periods of time, he or she should wear a respirator approved by the National Institute of Occupational Safety and Health (NIOSH).
When using high-volume or high-pressure equipment to apply dust in attics or sub-floor crawl spaces, wear a NIOSH-approved respirator. Also, shut off fans, air conditioners, and hot-air heating equipment if necessary. If the dust is combustible, put out all flames and pilot lights, and shut down all spark-producing equipment in the treated area to avoid explosions.
In general, do not place the tip of the duster in a moist location or allow the duster to sit in moist environments as it will absorb water and become clogged. Clogged dusters can be cleaned by scraping out the spout with a piece of stiff wire.
Always follow the label when using DeltaDust.

Customer Reviews

Average Customer Rating

See all 329 customer reviews »

5 stars

270

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1 star

Worked GREAT!

By Jennifer on 09/28/2008

The siding on my home is red cedar and apparently it is a favorite treat for CARPENTER BEES. They were making terrible holes in the siding like perfectly round bullet holes, and then the woodpeckers would come along and peck at the wood making long channels so they could reach the carpenter bees behind the wood. It was a mess. My painters filled the wood with BONDO and caulk and wood filler...but that did not stop the bees. Over night they bored right through ALL of the products and the fresh paint. I called three exterminators but everyone told me they would spray and I would have to pay again and again in a few months because you could not kill them with just one spray. I BEG TO DIFFER! I found Delta Dust and I puffed it into the fresh new active holes that the bees made after painting. Within 24 hours I picked up over thirty dead bees on the ground around my house (I have small dogs and I did not want them eating dead poisoned bees). By 48 hours the count had risen to over SIXTY dead bees... and there are NONE flying around the holes, or siding any more! DELTA DUST IS A MUST for carpenter bees. It worked GREAT!!!!

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177 of 190 people found this review helpful
Amazing!

By Rhonda on 06/23/2006

We have ordered Delta Dust in the past to control Brown Recluse Spiders. It is amazing! We had our house sprayed for several years, twice a year, and we would still have Brown Recluse Spiders. I found your website and ordered Delta Dust from you, and our Brown Recluse Problem has been cut in half. We continue to apply the Delta Dust and see great results. Thank You!! P.S. We use it as a perimeter treatment and also in wall voids, in the attic space and under the house. I am very thankful for your product as we were killing approximately 5 spiders a week before we used the Delta Dust. I still find them now and then, especially when the dust has been washed away outside.

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112 of 123 people found this review helpful
This stuff saved my sanity and my marriage!

By A on 06/23/2011

My husband picked up bed bugs in a four star hotel while away for work in the UK. We know that's where he got them because he'd seen one inside his suitcase the day he returned and he was asking me if I knew what it was. I didn't and we just thought it was "a bug" not realizing that a within a week we'd both be covered all over our abdomens and arms with the nasty bed beg bites. We vacuumed, cleaned, tossed bedding, dry cleaned etc but they kept coming back. Until I did my research and discovered Drione dust. Follow the instructions to a T and you'll succeed in eradicating those evil, disgusting pests. We also did the "Vasoline" around the feet of our bed which helps keep them from climbing up the bed from other areas of the home. It was HELL. HELL!! But we beat them. We also bought the air tight mattress and box spring protectors. They work! It's all good, it all helps. Good luck!

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91 of 99 people found this review helpful
Delta Dust for Yellow Jackets

By Vr on 08/30/2010

Verified Purchase

Used it for yellow jackets, seems to have done the job. It took a couple of days, but they are gone.

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89 of 92 people found this review helpful
Great results!

By Carrie on 01/13/2007

I use a hand duster to puff Delta Dust into wall voids by inserting the duster underneath my baseboards. It will kill whatever is living inside the walls or travelling along the perimeters of the room. Also used Suspend SC (liquid version of Deltamethrin) with a gallon sprayer on top of the dust for an added punch-- this duo of Delta Dust and Suspend SC has given me great results in getting rid of earwigs, spiders, ants, and fleas.

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77 of 84 people found this review helpful

See all 329 customer reviews

Questions & Answers

Have a question about this product?

Can Delta Dust be used inside a utility room that has a bees nest in it?

The room can be sealed off from the rest of the house. Do I need to wear a face mask when applying and cleaning up the area? How long do I need to leave the dust on before going in to clean up the room and the nest? Thank you for your help.

Delta Dust is an excellent product choice for treating a bees nest. If the bees are in a utility room, there must be a vent or opening where the bees are going in and out. The key to treating the bees nest is to apply the dust where they fly in and out. You would want to apply early in the morning or late at night when the bees are not as active. Go up to the opening and just apply two quick puffs and walk away. Wait a couple days for the bees to pick up the dust when they go through the opening and spread it around to the other bees in the nest. You should open the utility closet once you no longer see activity going in and out of the opening the bees were using. You may have to dust twice to completely knock the whole colony out. Repeat the same steps again if need be. You should wear a basic dust mask when cleaning only as a precaution.

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22 of 26 people found this answer helpful

Is Delta Dust safe for having pets in the house such as parrots?

Yes, Delta Dust is very safe to use indoors around pets and children. You should keep children and pets out of the room while you are applying the product, and then it is ok to allow them to come back in once you are done. Of course, you want to use common sense and not dust out in the open or inside the parrots cage, but if you apply Delta Dust into the areas specified on the product label, (cracks and crevices, under appliances, and inside wall voids) there should be no issues.

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150 of 159 people found this answer helpful

Can I use Delta Dust under my oven without emptying everything (including the food) out of my kitchen?

Yes, Delta Dust is perfect for underneath and behind appliances as well as in wall voids and cracks and crevices. All of these areas can be treated without removing any food from your kitchen. Of course, you would not want to dust in the open if you have food sitting out on the countertops exposed.

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51 of 53 people found this answer helpful

Will Delta Dust work on roaches?

Yes, Delta Dust is labeled for roaches and works great. However, you typically will see better results by using additional products along side the Delta Dust. You should apply dust underneath appliances and inside wall voids in the kitchen, but you should not apply dust openly into cabinets and drawers. Our most popular product for the cabinets and drawers that is safe to use around food handling areas is Advion Roach Gel. Below is a link to a great article on the best treatment for roaches.

Roach Control Article

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39 of 43 people found this answer helpful

If some of the Delta Dust gets on the tree, will it damage the tree or the apples?

I have carpenter bees boring into my fence. I also have an apple tree in the immediate vicinity. If some of the Delta Dust gets on the tree, will it damage the tree or the apples? Thanks.

Delta dust will not damage the tree or the apples. However, if you are going to harvest the apples you should wash them just to be safe before consuming.

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3 of 4 people found this answer helpful

Can Delta Dust be used to treat windows?

Delta Dust is meant to be used in cracks and crevices and inside wall voids. It is not labeled to apply out in the open like on a window sill where people could easily touch it. It is meant for places people cannot easily access it, like underneath appliances and inside wall voids.

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5 of 5 people found this answer helpful

Does Delta Dust kill carpenter bees immediately?

Does Delta Dust kill carpenter bees immediately? I drenched two of them today and they both flew off. One was boring a nest and the other was actually in a nest. I believe one actually survived and came back to its nest. Thanks.

Delta Dust will not kill on contact. In fact, no product will kill a bee or other insect immediately other than Wasp Freeze or a pyrethrin aerosol. The bees that you covered with Delta Dust will die, but not until the bees ingest the dust. When bees walk through a hole or land on a surface that you dusted, they pick up the dust on their bodies. Later, when they groom themselves as most insects do, they will ingest the small dust particles and die soon after. All dust products work better the less you apply. You should only apply a very thin light dusting of the material. Bees and other insects have thousands of microscopic hairs on their bodies and will pick up the dust quite easily. A pile of dust in one place will look like a mountain to a small insect and they will walk around it instead of through it.

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281 of 291 people found this answer helpful

I had Delta Dust puffed into my attic, how safe is it, and can I go into the attic?

Delta Dust is a very safe product and only strong enough to kill small insects. If the Delta Dust has already been applied and settled, it should be perfectly safe to re-enter the attic space.

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96 of 101 people found this answer helpful

I have the B&G Bulb Duster for Delta Dust, do I really need to get a Bellow Duster also?

No. You can use any duster you have with Delta dust. The B&G duster is a great versatile duster and will work just fine with any dust.

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2 of 3 people found this answer helpful

Is this the best dust product for waterbugs along with using a spray chemical?

Delta Dust is a good choice because it is the only dust that works even when it is wet and it can last for up to 8 months. The American Roach, also known as a waterbug, is rarely known to have large infestations indoors because of their need for high moisture and their slow development. Cold temperatures can drive them indoors but they are usually controlled quite well with insecticides and granule roach baits such MaxForce Complete Insect Granules.

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can I apply Delta Dust in a children's sandbox?

I have the beginnings of a digger bee infestation in my children's sandbox. Is this a safe product to pour into holes in sand play area? If so, how long should I wait to let children back in affected play area?

You cannot apply Delta Dust to the sand in a children's sandbox. We do not recommend applying any insecticides to the sand or any other play equipment for safety reasons. If you are worried about the wasps in the sand box you can frequently turn the sand with a shovel so that it will not be suitable for the wasps.

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1 of 2 people found this answer helpful

Can I use Delta dust in my yard for ground hornets ?

Will it harm our dog if used on the yard ?

You can use Delta dust for ground dwelling hornets though you should note that Delta dust does not offer an instant knockdown. We recommend applying Delta dust with a hand duster directly to the hole and to the area immediately around the hole. Applications should be made very early in the morning or very late in the evening when the insects are less active. As long as you follow the product label you can use Delta dust safely in a yard with a dog. If you feel that you would also like an immediate knockdown spray you should consider a spray such as Eco PCO Jet-X. Eco PCO Jet-X provides instant knockdown and kill of stinging insects (does not offer residual control). The Jet Spray can be sprayed up to 15 ft.

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48 of 50 people found this answer helpful

How quickly does the Delta dust kill spiders?

I have brown recluses I have dusted under furniture and behind appliances.

How quickly the Delta dust will kill a spider is dependant on how much dust the spider picks up on its body and the size of the spider. Typically dust can kill a spider in as little as an hour or as long as 24 hours or more depending on these factors.

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103 of 109 people found this answer helpful

What is the difference between Delta dust and Drione dust? I want to kill brown recluse spiders.

Which one do you think would be better?

The main difference in these two products are the active ingredients. Delta dust contains the synthetic pyrethoid deltamethrin while Drione dust contains the natural ingredient pyrethrins. Both will do a fantastic job eliminating almost any insect including spiders, though you should note that dust insecticides can take several days to actually kill the insect. Delta dust does have one advantage over Drione dust, Delta dust is the only waterproof dust on the market and it will still be effective even if it gets wet.

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237 of 245 people found this answer helpful

Is Delta Dust good for scorpions? I've found they are very difficult to get rid of.

I live in Las Vegas and just moved into a neighborhood that has a real problem with scorpions. I've never had to deal with them before and finding it very difficult. Please help!!

Delta Dust is good to use as part of a scorpion control program. Delta dust can be applied using a hand duster directly behind baseboards, to window and door frames, corners, pipes, storage locations, attics, crawl spaces, and other areas which these pests may enter or crawl. We also recommend that you use a concentrated liquid insecticide such as Demon WP around the outside perimeter of your home to help create a barrier to keep these pests out. You should treat a band of soil 6 - 10 ft wide around and adjacent to the building. Also treat the building foundation to a height of 2 - 3 ft where pests are active and may find entrance. It is important that you do not rely on insecticides alone to control scorpions, you should also make some changes outdoors to make your property less favorable to this pest.

Non-insecticide methods for scorpion control are:

Harborage Removal- Harborage removal is key to scorpion control and will greatly reduce the numbers of scorpions in the area surrounding the structure, making it far less likely that they will enter. Harborage removal includes eliminating piles of lumber, bricks, and other stacked items that create clusters of tight spaces, elimination of vegetation and other heavy ground coverings near homes and buildings, trimming back tree and shrub limbs from walls and roof, and keeping gutters clear of leaves and other debris.

Exclusion- Scorpions and other pests can be kept out of structures to a large degree by installing tight-fitting screens, weatherstripping around doors and windows, and caulking cracks and crevices.

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22 of 25 people found this answer helpful

See all 199 customer questions

Delta Dust Insecticide Rating: 4.6 (329 Reviews / 199 Q&A)

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Delta Dust Insecticide

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