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Orthene PCO Pellets

Walt Cline - Pest Control Professional Pro Tip: "

For tough German roach problems, such as those found in commercial kitchens, combine Orthene PCO Pellets with Tekko IGR for optimum control. Gentrol will slow down the roaches' ability to breed while the Orthene kills the existing roaches. Orthene does have a bit of a smell so we would recommend using an odor masker such as Monterey Odor Mask.


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Orthene PCO Pellets
  • Buy 2 for $72.50 each and save 8%

Availability: In stock

Orthene PCO Pellets Insecticide contains : 10 - 1/4 ounce packets. Orthene PCO  Pellets are uniquely designed to target and exert control over even the most stubborn household pests that tend to be resistant to other products, like the German Cockroach

Active Ingredient: Acephate 97.4 %

Packaging: Box(contains 10 packets)

Prop65 California Proposition 65 WARNING



Orthene PCO Acephate

Orthene PCO Pellets are uniquely designed to target and exert control over even the most stubborn household pests that tend to be resistant to other products, like the German Cockroach. Orthene PCO Pellets has broad-spectrum control of many structural, pantry and perimeter pests

  • The unique 97% formulation of Orthene PCO Pellets means there's less dust and lower odor. Orthene PCO Pellets mixes easily with water and can be used as a crack and crevice spray or for perimeter and spot treatments.
  • Application flexibility for restaurants and other structures - use as a low-volume crack and crevice spray, or as a perimeter or spot treatment
  • This insecticide works equally well on stainless steel, tile, glass and porcelain, and it leaves no telltale film.

Top Features

  • Orthene PCO Pellets is an insecticide concentrate in water soluble powder form.
  • Immediate results - works as soon as the pest ingests
  • This insecticide is a very popular product for those who own or operate restaurants.
  • Orthene PCO Pellets is labeled for use in restaurants (and other commercial food areas).
  • It is very powerful against German Roach populations that are resistant to synthetic pyrethroid insecticides.
  • Power that is not degraded by sunlight
  • Should not be used on carpet or upholstery.


The German cockroach is the most pesticide-resistant structural pest, next to the housefly .
Field use and research alike continue to demonstrate that acephate (the active ingredient in Orthene) remains one of the few insecticides to which the German cockroach remains largely susceptible.
Extensive research on insecticide resistance in German cockroaches shows that 51 strains demonstrated resistance to chlorpyrifos -- while only four strains demonstrated resistance to acephate (Orthene).*

Applications: Mix with water only. Use indoors and outdoors. Approved for Food Handling. Crack & Crevice, Spot Spray, Outdoor applications include broadcast and mound drench. Not approved for residential areas indoors.

Orthene PCO-Organophosphate

Orthene PCO is one of only two organophosphates that remain for the PMP industry. This is important because of resistance problems with synthetic pyrethroids and the need to rotate chemicals. Acephate has never been shown to have resistance. Many people will agree that Orthene PCO will control roaches when nothing else will. Orthene PCO provides quick knockdown and residual that will last 8-12 weeks.

There are a few things that make Orthene PCO unique for commercial use. Orthene PCO controls insects by contact and ingestion. This is the reason an insect cannot develop resistance to acephate. It is a soluble pellet (powder). Orthene PCO leaves no visible residue, will not tie-up with grease and dirt and remains on top of grease and dirt and therefore always present when insects crawl over the surface. Orthene PCO is totally non-repellent. Insects do not know it is there. This means it can be used with baiting programs to get rapid control of infestations.

Orthene PCO also adheres well to stainless steel surfaces. This means it resists washing off these surfaces when areas are hosed down in the evening.

Orthen is water soluble, Not Oil Soluble

In commercial kitchens and other areas that attract cockroaches, there are almost always grease or oil deposits. These deposits can soak up oil-soluble products like chlorpyrifos or pyrethroids -- and compromise their effectiveness.
But Orthene forms upright, spiked crystals -- even on grease deposits. So Orthene stays on the surface to effectively control pests -- instead of soaking in.

Additional Information

Additional Information

Pro Tips

For tough German roach problems, such as those found in commercial kitchens, combine Orthene PCO Pellets with Tekko IGR for optimum control. Gentrol will slow down the roaches' ability to breed while the Orthene kills the existing roaches. Orthene does have a bit of a smell so we would recommend using an odor masker such as Monterey Odor Mask.

Packaging Packaging: Box (contains 10 packets)
Manufacturer Valent
Product Label Label
More PDF's No
Target Pest

Controls 11 insects including cockroaches, ants, fire ants and crickets.

Orthene PCO Pellets is one of the most popular ways to control ants, crickets, firebrats, earwigs, pillbugs and cockroaches - yes, even German cockroaches that are resistant to other products.

Active Ingredient (s) Acephate 97.4%
For Use : N/A
Yield N/A
Mixture|Application N/A
Application No
Retreatment No
Shipping Restrictions CT, NY
More Instructions No

Customer Reviews 19 item(s)

None better
I and apartment and i keep getting roaches everywhere. The terrible run of the mill pest control guy just sprayed water like substance for months with no results. I sprayed this and by the next day I see results. And with one follow up treatment a month later I have zero roaches
Review by mark / (Posted on 2/4/2019)
I used Orthene PCO Pellets for 28 years in Commercial kitchen down south best on the market for German Cockroachers.
Review by Ecolab / (Posted on 1/27/2019)
Good product
Orthene with a growth regulator is the only way to get rid of a roach infestation . DO NOT spray this on unfinished concrete or bare block walls. It will put a odor off like raw sewage. I worked in the pest industry for years.
Review by Yosemite Sam / (Posted on 1/5/2019)
Great products
We used the Orthene PCO Pellets with the Monterey Odor Mask (Wintergreen) and the Tekko Pro IGR together and treated my house last night. When we got up there where dead German Cockroaches on the floor and cabinets. We have been having our house professionally sprayed for years and that is the only thing it couldn’t get rid of. Very impressed with these products. I would definitely add the odor mask, the smell of the pellets are very strong and this helped a lot.
Review by Elaine / (Posted on 7/21/2018)
Roach killer PERIOD
I used it to get rid of roaches(a lot of roaches) and three weeks later and all dead,gone.ty
Review by blue / (Posted on 7/2/2018)
It worked where others failed
This restaurant has had a German roach problem for three years or more. They have had two different professional companies try to rid the restaurant of thousands of roaches and the problem was getting bigger. After reading your general pest control tips, I knew this restaurant needed something different to control the German roaches. I used Orthene PCO pellets and Tekko IGR and after a week a few roaches were seen but two weeks no roaches at all. I'll put out some sticky traps to see if we have anymore problems. It did smell when spraying but cleared up over night. This is the way to fix the German roach problem. Thanks,

Review by jhawk / (Posted on 6/5/2018)
The best product for roaches on the market!
I have used this product for years. It is wonderful! Kills roaches, spiders and ants for at least a year! I have rentals and it is a must have, not only for rentals but for my and my families homes. I swear by it!
Review by Jan / (Posted on 8/28/2017)
I've been using this product for 20 yrs in com. kitchen with poor sanition problem it works great on german cockroaches
Review by RatPak / (Posted on 8/1/2017)
Absolutely fantastic
Awesome results in amazing fast time. I had german roaches and tried everything with no luck. After reading that this stuff works l bought it with overnight shipping, well worth the extra money. Sprayed inside and out on Monday again on the following Monday by day 10 looks like every freaking bug is dead! Little tip if you open, mix, and leave the empty package outside the smell from this product it's near as bad inside. Thank you
Review by Jwv / (Posted on 7/31/2017)
When I tell y'all this stuff works! I use to stay in conyers and my town home was infested with roaches omg! Someone told me to do it yourself pest control got something for those bugs and so I went. I told them what I have and they give me this product and I used this the same day as I clean was cleaning my house out. This product works so well they start dropping so dang fast within minutes I had a floor full of dead roaches. I may sound like a commercial but I don't care I'm about to order me some now I just moved in my house. It last for about a year and a few months for me but, the smell is very strong if you have little ones and pets be careful.
Review by Punkin / (Posted on 7/7/2017)
I recommend to any one who's having problems to get rid off ROACHES.
This is the best ever pest control product. About ten years ago I used it in Atlanta, GA and it had the same effect.
I also recently used this product in Memphis,TN. And it's great . You will notice the result within 24 to 48 hours.
If you want to get rid off Roaches, this is the only product I recommend.

Mohammed Omer
Review by Derae Restaurant / (Posted on 11/7/2016)
Orthene PCO Pellets
The best stuff that I have used.
By far the most bang for your buck.
Gets rid of ALL bugs.
Review by Doctor Tung / (Posted on 9/1/2016)
worthy every cent
Best roaches killer
Review by Tiger / (Posted on 8/27/2015)
Amazing results
Last year I bought a of box (10 packs) Orthene pellets and A box (10 bottles) of Gentrol. I followed directions and mixed one pack of Orthene and one bottle of Gentrol in a 1 gallon sprayer and sprayed my entire 1300 sq ft home. Within a week there were no bugs to be found dead or alive. I have not sprayed since last year and have just seen my first bug, and only one. Time to spray agian. The quantities I bought should last 10 years at this rate and it cost less than one visit from a professional. No question in my mind. This is the best way to go.
Review by U.S. Average guy / (Posted on 8/2/2015)
Works as advertised
5 days ago we applied Orthene to Kiitchen and the first 2 days we
saw roaches really moving fast at midnight, before they took their time.
The last 3 days we have not seen any roaches, no babies, none
This has worked when all the others only worked the day they were applied. Roaches were back the next day.
Review by RonDhgateUS / (Posted on 7/15/2015)
Very good product!!
If you are serious about ending ANY roach infestation, this is THE product!! I use it at my home, and am frequently asked by friends to spray their house. I worked with an exterminator years ago, who I am good friends with, and that's what he uses to this day. The hype is all about baits and gels nowadays, but this spray KILLS FAST. It stinks when mixed, and for the love of GOD don't spill it in your car or on your couch, but apply it the right way (I use a B&G sprayer) and say goodbye to bugs for good!! I read reviews like this and sometimes wonder how tied that person is with advertising that product, if they really use it, and if it is as good as they say. I am not in any way affiliated with Orthene, except it's use, but let me tell you, this product is amazing. Some of my friends have rented in very infested places. They call me to spray, and three days to a week later, all the bugs are gone. I have gone back to one house that was overrun, and retreated, just to make sure, but every other house took ONE application. You will not be disappointed!!
Review by Jeffrey / (Posted on 3/7/2015)
Long term solution for German Roachs
This stuff rocks!! Mix with the Gentrol IGR and you will end the roach problem with one application. Having numerous rental units, Roaches are always a problem somewhere, and these products get the job done. I highly recommend this!!
Review by SJC / (Posted on 2/2/2015)
Excellent Pest Control
It's amazing how this product kills roaches. I am very surprised, after using several pest control products and pest control contractors in the past and didn't eradicate the pest problem.
Review by Daisy / (Posted on 12/1/2014)
Awesome Product
In the past, we used an outside Pest Control Company. This company came out every week and was called to service the same units over and over. Since using DIY products, our residents are happy and satisfied. This product is the REAL DEAL!!!!
Review by DKA / (Posted on 4/23/2014)

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