Customer Reviews for Onslaught FastCap Spider and Scorpion Insecticide

I purchased a log home in the North Georgia mountains, an area notorious for scorpions and spiders. The previous owner did not use any pest control. Needless to say the home was full of scorpions and the exterior was covered with spiders. I started treating the home internally and externally with Onslaught for three months, I applied the applications every 30 days. I also used Nyguard IGR in the applications. After the second application I noticed scorpions & spiders in and around the home, they were all dead or were in the process of dying. Now six months later, no scorpions, no spiders. As a side benefit, this stuff also acted as a preventative to stop carpenter bees from boring holes in my logs or wasps nesting under my eves. This stuff really works.

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5 of 5 people found this review helpful

Almost immediately when we treated around our house & shop, house flies, crickets & spiders left the vicinity & have barely been back. That was about 2 weeks ago & we've only seen an occasional wolf spider. I retreated areas again 2 days ago. We are impressed with this product & it left no residue where we sprayed indoors & no offensive odor. Will definitely purchase again.

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5 of 5 people found this review helpful

This insecticide lives up to his claim. i washed my house, followed up with a good spray of Fastcap from a battery operated atv sprayer so i could spray 16ft. vertically. Not one spider, or wasp has returned. I have a corrugated tin ceiling on a out-door kitchen where dozens of "dirt dobbers" were getting in building nests. it's been a few weeks, and not one single wasp. it has a great staying power. Word of caution, due to the overhead spraying,I got drift sprayed on my face and arms on three occasions, and went and hosed off with soap, about 4 hours later,I was burning on both face and hands. so protect yourself with proper PPE.

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5 of 5 people found this review helpful

We bought a new double-wide manufactured home and had it set up during the cold months of winter on vacant land in Porterville, Ca. that had never been disturbed. As soon as the weather warmed up the scorpions moved in, and we were finding 3-4 inside the house every day. I did my research on the specific species of scorpion and their preferred food sources (earwigs), and which pesticides were most effective. Then I sealed the interior of the house where the pipes, waterlines, conduit, vents, windows, etc. provided access. The website DoMyOwnPestControl had lots of extremely helpful advice as well, which I followed. I started the first month with 1oz/gal Fastcap mixed with NyGuard IGR. (The growth regulator being an integral part of the program, applied once every 6 months.) I quite liberally sprayed indoors and out, from roof to ground as well as a good soaking under the house. In the first month I found 2 dying scorpions indoors and with a blacklight searching outside after full dark I spot sprayed about 2 dozen along the foundation. Next month I used the Demon WP insecticide mixed at the higher concentration as directed. Third month I alternated back to the original Fastcap, then DemonWP the fourth month, and this month the Fastcap again. Next month I'll use the Fastcap along with the NyGuard IGR. So far I have had ZERO scorpions, ZERO ticks, ZERO fleas, ZERO spiders or insects of any kind in my home. I see dead water bugs which live in the soil, along with a few dead beetles along the outside of the house along the skirting on occasion, but nothing alive. I now spray monthly inside along floorboards, under appliances, along window frames and under sinks, as well as outside. As long as they sell it I'll use it!!

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5 of 5 people found this review helpful

We live in SW FL where everything grows, fast and continuously. So first things first, I did NOT do this by myself. The folks at DMO have provided guidance on everything from WHAT I may I have, to how to get rid of it and when to do it. e.g. I had lots of big bugs both inside and outside but outside was the most pressing. For example lots of Fire Ants that were biting friends, neighbors, kids, spouses. Not good. DMO Suggested Bifen XTS with a sprayer and I got started. It worked great and we have not had fire ants for 7 years. It killed a lot of other lawn and shrub bugs as well. That worked so well I asked about indoors. Onslaught Fast Cap has done just as well inside. Virtually no more bugs inside the house. If you have a lanai I use Bifen on the screens and around the pool area and now my wife no longer complains of spiders and their webs. These folks are very well informed, willing to help you and have good products as well.

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5 of 5 people found this review helpful

I've captured around 60 in the last 10 years. And tested different products and recommended remedies. Remedies do not work. FastCap is about the best I've tried/tested, 1 ounce per gallon they die in around 3 to 5 days. However the first day after exposure they are incapacitated, slow down, can't move well, they look dead. But if you disturb them, claws out, tail up, ready to go to war. 2 ounces per gallon, they're not feeling too good after the first exposure. Normally dead with in the first day to a few hours. FastCap works for me. You will never get rid of them. you will always find strays. My friends two old boy was stung. He started foaming at the mouth. He was rushed to the ER, he almost died. He was in the hospital for three days. I hope this info helps. Good luck.

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5 of 5 people found this review helpful

This stuff works great! Recommend by another person that uses it for scorpions. Once dry it is pet and kid safe. You won't see one scorpion, black widow, brown recluse, or anything else. Eventhought the scorpions and spiders seemed to eat everything else. No more ant hills either. I spray about every 3 months to keep the bugs away. I only spray outside very thoroughly and never see anything. Every situation is different so you may need to spay less or more often. Get a UV light to check every month at night for scorpions. They are the strongest pest to kill so they always come back first then I know I need to spray again. But it keeps them away for months when nothing else works. Much cheaper than any pest control guy. And most of the time they won't have the right spray to get scorpions. Thus gets them all!

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4 of 5 people found this review helpful

We recently built our house outside of San Antonio in the Texas Hill Country and were experiencing infestations of scorpions and spider. After just spraying once around a he perimeter of the house and yard, we found several spiders and scorpions dead or nearly dead. Just follow the instructions and use a little of the Cyzmic CS as recommended and that should do the deed. We've used Terminix for several years and they have not been able to keep up with all the critters now that summer has arrived. We will probably cancel our contract with Terminix. Onslaught Fastcap Scorpion and Spider got rid of all bugs in and outside of our beautiful home. My wife was worried about our 10 month baby boy getting stung by a scorpion as he crawls around the house. But that is no longer the case. I have recommended this product to all my neighbors, friends, family and to our builder. This stuff works!

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4 of 4 people found this review helpful

I love this stuff. I know it mainly treat scorpion spiders but this stuff will kill anything on contact. I bought it because I have a major problem with spiders. It's been 2 weeks later and I am still finding dead bugs all over the house and mainly in the basement. When I sprayed around the base of the house I found a bunch of dead " Black Widow Spiders", so know that it will kill other types of spiders. I would definitely buy this stuff again and I would recommend it, highly... Another great thing about this spray is the fact that it does not have a smell like most sprays, which I love ... I can spray and I don't have to deal with the strong unbearable smell.. Good stuff!

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4 of 4 people found this review helpful

Due to hurricane harvey rainfall, my home was crawling with crickets which drew in the scorpions. Had local pest control company come in and retreat entire perimeter and still had scorpions crawling on foundation and porches. They told me to give it time to work and i told them that stuff they put out isn't even slowing down the crickets much less the scorpions. Sprayed Onslaught on porches and foundation and results were almost instant. Overnight there were numerous dead and dying scorpions and hundreds of dead crickets. These were the largest scorpions I've seen here, very healthy!! They were no match for Onslaught. Pest control company said to give it time to work but with scorpions, i want immediate results. The same night they sprayed their stuff, i saw scorpions running around on my porches. After spraying onslaught, the only scorpions I've seen are the good kind. Dead scorpions!!!!

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4 of 5 people found this review helpful

I've been using another product (Cyzmic CS) for years with good success. But, I wanted to have a second option so I could rotate usage. My main targets here in Nevada are roaches, scorpions and spiders. I like that the Onslaught Fastcap specifically targets spiders and scorpions. So far all I've seen are a couple of dead roaches. No scorpions or spiders at all.

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4 of 5 people found this review helpful

i flip flop between onslaught and cykick cs. so far this summer Ive only found one bark scorpion and I live in the the Estrella Mountains.

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4 of 4 people found this review helpful

Our son bought an older home that had not had a pest control agreement on it for a few years. They had a terrible scorpion problem. After treating with Onslaught FastCap they have only seen a couple over several months. This is a wonderful treatment for all kinds of bugs. We have made a second order. We don't want to run out of this.

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3 of 3 people found this review helpful

This product is amazing to kill scorpions, we see the results right after we spray and it is good for at least 6 weeks especially if there is no rain. Don't know what we would have done without this product. Scorpions have become a big problem in our neighborhood and we are able to control them with this spray. I just order another 2 bottles.

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3 of 3 people found this review helpful

First time I've found dead scorpions after spraying the day before. It's now been three weeks and have not seen a scorpion, was finding them every other night ... so seems good product. p.s.. also seems to have worked on the earwigs !!

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3 of 5 people found this review helpful

I mixed up a gallon of this and was blown away at how well it stopped ALL bugs. This stuff is the real deal. So far 2 weeks in and it's working like day 1. Anyone saying this stuff doesn't work must be using it incorrectly.

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3 of 3 people found this review helpful

Onslaught Fastcap is my go to product for all insect issues. The label covers a wide range of insects and application usage. The immediate knockdown effect paired with the residual effect makes this my hands down favorite. I have had success using this on roaches (oriental, American, and German), bed bugs, ants, spiders, and centipedes. Since I began using Onslaught Fastcap I have not had a single call back. After the inspection is complete Onslaught Fastcap is the first thing that you should reach for to put in your integrated pest management plan.

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3 of 3 people found this review helpful

I looked at what exterminator was using and found the same product online. I bought it mostly for scorpions but it works on everything. I am saving lots of money doing my own pest control.

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2 of 2 people found this review helpful

I use it religiously and every time i find a scorpion it is dying or dead. I live at the base of a mountain and it is rampant with spiders and scorpions especially in the AZ summer ! I really appreciate this product it has no smell like other products. I will continue to use this product...

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2 of 2 people found this review helpful

Moved into a new house and the contractor had put down sod. We ended up infested with all kinds of spiders some not even native to our area. After getting bit by a recluse I decided that drastic measures needed to be taken. Long story short 10 mins after the first treatment I found 3 dead black widows on the sides of the house and 1 inside. Waited 3 weeks and treated again and haven't had any more issues with the spiders.

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2 of 2 people found this review helpful

I just recently applied Onslaught fastcap to our home two days ago. I live in AZ where scorpions are all over the place. I've tried numerous products including Cy-Kick, Demon WP, Suspend SC, Talstar granules and Terro. This is the first time I'm seeing dead or about to die scorpions on my nightly walks with black light after using Onslaught Fastcap. I am will now use Terro spray for spot treatment where I can't reach them. It also kills them just not on contact as they claim. It takes them up to a couple hrs but they do die. Fastcap is now my go to perimeter treatment as it's the only one that has worked for me. I sprayed the product with a ryobi battery powered sprayer and have already seen 4 dead/almost dead scorpions. This has never happened before even with Cy-Kick. I am impressed and relieved even if it does not eradicate them. I am just happy I'm able to control them.

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2 of 2 people found this review helpful

This product is great. Within a day I started seeing a few scorpions dead in plain sight which shows they died before they could get back to hiding. I've good luck with other DOMYOWN products and the service has always been top notch. Thanks

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2 of 2 people found this review helpful

Product works great for spiders and scorpions. Works right away

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2 of 2 people found this review helpful

We had a bunch of spiders and webs all over our house and shrubs. I tried conventional bug killer, but it didn't seem to faze them. I found out these are Joro Spiders, an invasive species from Asia. I mixed up the Fast Cap in my sprayer, and killed over 50 of these monsters. It hammered them

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2 of 2 people found this review helpful

Best stuff I have used for scorpions hands down! I have used a lot of different things, equil lambda, talstar, demon…. But this stuff has been amazing!!! I use it as a perimeter treatment around the house and garage for scorpions and spiders. I saw a couple while treating and when I came back around they were dead. Fast knockdown! Now just want to see how long the residual lasts. They say 90 days but the other products I have used here in Florida really give you 30-45 days residual with the rain so we will see. I am very pleased. Where I live there is nothing I can really do about the scorpions because I'm surrounded by woods other than just treat my house and yard to keep them at bay. So far so good!

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2 of 2 people found this review helpful

It kills just about every insect. It's instant effects on spiders especially black widows makes me one happy camper.

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1 of 1 people found this review helpful

I used it as directly in sprayer and I haven't seen a live scorpion since I sprayed. I'm thinking maybe I've won the battle against scorpions.

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1 of 1 people found this review helpful

No scorpions sighted after spraying once a month for 2 months. Temps in the 100 plus range. Slightly stronger odor that Cykick but I only use it outside of the house.

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1 of 2 people found this review helpful

Saw our first few scorpions since being here for 3 years, bought this and saw our first dead one the next day!!! Have not seen any others, also all of the crickets are dead and anything else that comes close.

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1 of 1 people found this review helpful

Order was easy, fast and I had no problems with getting it. It was the season and glad to get it as my old container was empty.

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1 of 1 people found this review helpful