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Demon WP Insecticide

Walt Cline - Pest Control Professional Pro Tip: "Demon WP packs are easy to use, just mix them into water. Mix well in your sprayer, and use the finished solution within a couple of days. Demon was a good German Roach killer, but they seem resistant to it now. Gel and powder baits are the best choices for the German Roach.

Cyper WSP ( packets) have the same label as Demon WP but are more economical. Both Demon WP and Cyper WSP are classified as a long-term residual insecticides.

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Demon WP Insecticide
79 Review(s)

Availability: In stock

Prop65 California Proposition 65 WARNING

Demon  WP - Envelopes

Demon WP - 1 Envelope - (4 x 0.3 oz) packets

  • Buy 2 for $8.95 each and save 26%
  • Buy 12 for $8.50 each and save 30%
Demon  WP - Envelopes

Demon WP - 2 Envelopes - (8 x 0.3 oz) packets + B&G Dura 10 PV 1 Gallon Sprayer


Customer Reviews 10 item(s)

21-30 of 79

Very effective product! Didnt get them all but definate improvement
Review by jeff / (Posted on 9/28/2016)
Great product.
Demon WP is the best insecticide I've ever used. It kills Hobo Spiders DEAD, DEAD, DEAD! It's even taken care of our Hobo Spider problem better than whatever the professional exterminators we hired were using. And they were charging us $60.00 per month, June thru September.

Demon WP is deadly on earwigs too. This is a bad year for them here in SE Idaho. But sweeping a dozen or so dead earwigs of our front porch (which I sprayed with Demon WP) is sure a lot better than having live ones in our house.
Review by Jim / (Posted on 8/15/2016)
Nuke them
Recommended by a friend. Does the job right, and saves me $ - DYI.
Review by azfixit / (Posted on 8/8/2016)
Demon Wp
Listen,when I had a roach run across my chest a night,I had enough..and did the research, And this Product is better then any other one have ever tried...All hands down.and once I spray it in three days four properties I take care of they are laying dead ..it spray for new bee twice when,I know once a year is good.but the product is not to expensive when your budget is tight.like a frog butt ..so yes been using it for now over ten year's and I stand behind this product
Review by Moondoggie / (Posted on 8/5/2016)
Great product, great customer service, great company
Review by Laura / (Posted on 7/30/2016)
Favorable Demon WP
Demon WP has worked effectively for me for years. I apply twice per summer which is the frequency that works for me to assist with keeping bugs under control.
Review by WW / (Posted on 6/15/2016)
Very good!
Very quick shipping and great price!
Review by knifenut / (Posted on 5/16/2016)
Fantastic Product!!
I have an uncle that owned a pest control business. After trying the stuff at home depot, Lowes and Walmart I decided to give him a call. He immediately recommended Demon WP and said that is what he used for years without any complaints. I've used it now for about 5 years. I recommend this to anyone that wants to save money doing their own pest control and use something that really works.
Review by Steve / (Posted on 5/3/2016)
Very effective
after signing a lease to a new rental home we discovered it was infested with roaches!!! This product combined with igr and gel bait eradicated them!!! I will forever be a customer of this company! Customer service is great!
Review by dleere / (Posted on 4/21/2016)
Demon wp
I have purchased demon wp before , but it was purchased from diy pest control in the store, my order purchase on-line was received in a timely manner, and i am very pleased, I have not seen any bugs in months, thank you so much.
Review by carol / (Posted on 4/1/2016)

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