is it effective again German cockroaches
754931
I purchased this for stink bugs. The first time we sprayed the house from the top of the eaves down to the foundation using the dosage recommended. Didn't seem to make an impact. The second time we doubled the recommended dosage and noticed a significant decline in the bugs entering the house and even 90% better of them entering the attic. We did "bomb" the attic with 3 spray cans purchased at the home depot after we sprayed the outside of the house with Demand CS. I have no idea if this stuff is effective against German cockroaches but I think if it controlled those nasty stink bugs it should do the trick. You have nothing to lose but to try it. It's definitely worth a shot. I purchased this for stink bugs. The first time we sprayed the house from the top of the eaves down to the foundation using the dosage recommended. Didn't seem to make an impact. The second time we doubled the recommended dosage and noticed a significant decline in the bugs entering the house and even 90% better of them entering the attic. We did "bomb" the attic with 3 spray cans purchased at the home depot after we sprayed the outside of the house with Demand CS. I have no idea if this stuff is effective against German cockroaches but I think if it controlled those nasty stink... » Read More I purchased this for stink bugs. The first time we sprayed the house from the top of the eaves down to the foundation using the dosage recommended. Didn't seem to make an impact. The second time we doubled the recommended dosage and noticed a significant decline in the bugs entering the house and even 90% better of them entering the attic. We did "bomb" the attic with 3 spray cans purchased at the home depot after we sprayed the outside of the house with Demand CS. I have no idea if this stuff is effective against German cockroaches but I think if it controlled those nasty stink bugs it should do the trick. You have nothing to lose but to try it. It's definitely worth a shot. « Show Less
754932
This stuff is strong enough to ward off black widows and even scorpions so I have no doubt it would work against German cockroaches. Ive been using it for 3 years now and always will!
754933
Never tried against cockroaches, but it is effective against stink bugs, ladybugs, all types of flies. I would guess it is worth a try. By the way, the small bottle is enough to start. The product gets diluted heavily before application.
1020359
I gave my reply before reading the others. If it should render the other treatments less efficient, so be it. If the professionals used it, they would be out of business. Then they wouldn't need to come around each few months. We had used other stuff and this didn't seem to cause any problems. The roaches died and stayed gone. That is what we were concerned with.
2109807
yes it works really well follow the instruction you start to see roaches died in 3 days but it take time for them to be gone \
2207471
I have used it for all sorts of bugs, etc., but haven't used them specifically for roaches although we randomly find one dead or dying. I am very happy with cyper and comparing it to pre-mixed, etc., it's a hell of a lot of killer for the money. g.r.derman, Homestead, FLorida
604994
I don't know about German Roaches,but it seems to work well on so many other bugs I'd try it if I were you.
69002
No, I have several in one room-we had an infestation a year ago that we've been fighting tooth and nail, and Gentrol is what is FINALLY taking the population down, and fast. We've sprayed and bombed, but Gentrol is what is finally doing the job-it takes a few weeks to see results, but that's because it messes up the roach's reproductive system, and you'll see the results in that the bugs will start looking different-one side's wing will be deformed, they won't walk right-things like that. We made a big mistake in not putting them out as soon as we got them-we were going on vacation and just forgot-because by now, 2 months later we would be clear of bugs if we had. No, I have several in one room-we had an infestation a year ago that we've been fighting tooth and nail, and Gentrol is what is FINALLY taking the population down, and fast. We've sprayed and bombed, but Gentrol is what is finally doing the job-it takes a few weeks to see results, but that's because it messes up the roach's reproductive system, and you'll see the results in that the bugs will start looking different-one side's wing will be deformed, they won't walk right-things like that. We made a big mistake in not putting them out as soon as we got them-we were going on vacation and just... » Read More No, I have several in one room-we had an infestation a year ago that we've been fighting tooth and nail, and Gentrol is what is FINALLY taking the population down, and fast. We've sprayed and bombed, but Gentrol is what is finally doing the job-it takes a few weeks to see results, but that's because it messes up the roach's reproductive system, and you'll see the results in that the bugs will start looking different-one side's wing will be deformed, they won't walk right-things like that. We made a big mistake in not putting them out as soon as we got them-we were going on vacation and just forgot-because by now, 2 months later we would be clear of bugs if we had. « Show Less
1020366
Not being a chemist I don't know for sure. However I would go ahead and use it. In the months since we applied it, the roaches are still gone. One thing that this question brought to mind. Way back many, many years ago I lived in an apartment that had roach problems. When the apartment next to us got treated the roaches came to ours. When we treated they went to visit the others. But that was back in the 1960s With this you would not have this problem. So going back to your question-- DO IT! In the 53 years I have been out and living in various places I have never had any thing that worked as well. Not being a chemist I don't know for sure. However I would go ahead and use it. In the months since we applied it, the roaches are still gone. One thing that this question brought to mind. Way back many, many years ago I lived in an apartment that had roach problems. When the apartment next to us got treated the roaches came to ours. When we treated they went to visit the others. But that was back in the 1960s With this you would not have this problem. So going back to your question-- DO IT! In the 53 years I have been out and living in various places I have never had any thing that worked... » Read More Not being a chemist I don't know for sure. However I would go ahead and use it. In the months since we applied it, the roaches are still gone. One thing that this question brought to mind. Way back many, many years ago I lived in an apartment that had roach problems. When the apartment next to us got treated the roaches came to ours. When we treated they went to visit the others. But that was back in the 1960s With this you would not have this problem. So going back to your question-- DO IT! In the 53 years I have been out and living in various places I have never had any thing that worked as well. « Show Less
1368351
I don't know about the roaches, because our main insect problem was with ants, earwigs and spiders. I do know when you put it down it needs to have time to dry in order for it to have a lasting effect. We usually put it around the outside of the house and then also the inside of the house. The only time we end up with bugs is when we delay in putting it down. Been using it for 4 years now and I'm hesitant to try anything else. This works well so I'm sticking with it.
595381
I don't know. Haven't had to try... But roaches usually require exterminator to find source of problem.
306602
It states to use product within 1 year. Here's the thing: It doesn't work. Roaches will either walk around it to avoid the product or they will stay trapped and spend the time reproducing. I wrote the vendor who apparently thought my Master's of Science degreee meant that I am an idiot. I think the positive testimonials are fake. Demon WP and Cyper WP work incredibly well, but you have to mix it w/ water and apply w/ a sprayer.
1691658
This is the most effective product I have ever used. I`m not sure of the physiology of the various species of roaches, 'cause they're all nasty to me, but after using the product in Florida for the giant super roaches we have down here, it was great. I have no roaches in my house or garage even during the past rainy season when they seem to be at their most active. I would simply use the product or if you think it makes a difference, contact the manufacturer directly.
1106757
I used this product indoors to kill cockroaches in kitchen area, which worked great! haven't seen one since I started regular spraying. Hope you find your answer soon
486415
I had German and waterbugs .........NO ROACHES NOW!!!Tip ...place some of the bait on the bottom hinge of fridge .........Also as an apt rental owner i have found bugs hiding inside the door seal.......lined up ........WOW..check there if its broken they will hide there where it is cool and dark...SG
2109808
yes It will kill them really well. They eat it and it don't kill them right away. They take it back to their nest. What they walk through it tracked back to nests to kill off the population. They crawl out looking for water (I guess since they turned up dead all around water sources) and then they die. The roaches not effected will eat the dead roaches and die too. (you won't have to leave dead roaches out...just good to know for ones that die inside walls) It is worth buying. Only issue I had Lynn was that I got 3 tubes when they advertised 4...but I wasn't even upset enough about it to bother contacting the seller. I was blown away with this product. yes It will kill them really well. They eat it and it don't kill them right away. They take it back to their nest. What they walk through it tracked back to nests to kill off the population. They crawl out looking for water (I guess since they turned up dead all around water sources) and then they die. The roaches not effected will eat the dead roaches and die too. (you won't have to leave dead roaches out...just good to know for ones that die inside walls) It is worth buying. Only issue I had Lynn was that I got 3 tubes when they advertised 4...but I wasn't even upset enough about it to... » Read More yes It will kill them really well. They eat it and it don't kill them right away. They take it back to their nest. What they walk through it tracked back to nests to kill off the population. They crawl out looking for water (I guess since they turned up dead all around water sources) and then they die. The roaches not effected will eat the dead roaches and die too. (you won't have to leave dead roaches out...just good to know for ones that die inside walls) It is worth buying. Only issue I had Lynn was that I got 3 tubes when they advertised 4...but I wasn't even upset enough about it to bother contacting the seller. I was blown away with this product. « Show Less
641566
The Invict Gold Roach Bait Gel will work great for all types of roaches per the manufacturer, it is just specially formulated for German Roaches as those are the most common infestation
1708593
I'm not sure on silverfish,but you can give it a try.It definitely works on cockroaches!
188155
I use it in my house like in my bedroom and the bathroom. We get these big water roaches or whatever they call them. They are big cockroaches as far as I'm concerned. They are the size of your thumb and fast! This is the only thing I have come to find that will kill them. Just spray in a premier around the room with a small handheld spray bottle. I use warm water and the product will turn into a milky color but will dry clear.