Does anyone know how these packets work? Do the silverfish just have to get near them and they die or do they have to feed on them or what?? Thanks!

Silverfish eat paper, among other things. They stay in dark places and are attracted to dampness. The contents in the envelopes kills the silverfish. We noticed a remarkable difference in our house when we put these packets out. Place them in closets against the walls, in corners in rooms, under bookcases, in your basement, behind furniture, etc. Check for awhile to get a good price. It is worth trying this product. It is certainly safer than putting powders out. Hope this helps.

Is this product odorless?

It has no odor. I have waited to review this product to see if it worked. All I can say is I haven't seen a silverfish since I put these aound my house.

Can they be put inside kitchen cupboards if they are not touching food or dishes?

Silverfish- regular: Lepisma saccharinum longtailed:Ctenolepisma longicaudatum Both Diatomaceous Earth (DE - which contains the tiny, fossilized, sharp edged shells or silicate cell-walls of ancient diatoms, single celled marine creatures) and Boric Acid (BA - a weak acid compound derived from borax) in crystallized form are not very poisonous to us. Instead the insects' shells are scored by DE which also, along with BA, is not safe for THEM to EAT (as I understand it). Either way, when they eat the baits the silverfish soon die. They usually are attracted to dark, dank places which have or are near what they like to eat. What they often eat or places they habituate include: * Starch (found in some clothing and foods and esp. in wallpaper paste) * Some types of cloth * Wallpapers * Carpet * Dry foods * Paper * Boxes * Other substances containing cellulose * Attic Insulation * Light fixtures * Electrical outlets * Behind Refrigerators and Ovens * Inside walls * Behind and under furniture * Underneath siding, etc. For me, because I don't go to many dank places or small crevices, they are usually found on a wall. But I think they don't go on walls often. More often I see their scat on counters, but a lot of people find sign of them in drawers and other places where clothing or books are kept. They're not much attracted by eBooks. You can spread BA or DE at points of traverse or egress, especially near books and other paper, points where they've been seen or where they might enter a house or where they likely hide. Both DE & BA are powder- or dust-like. Neither is particularly dangerous to touch, for us, but should not be eaten, and don't get either in your eyes. There may be a little contact danger for some pets, but again, neither is particularly toxic to mammals. By putting either out in bulk form, you'd be adding dust to your environment. In this way, despite the exorbitant price, the baits (which contain BA) are convenient, usually effective to a degree, and very much neater than spreading dust, powder or crystals on your floor, along walls, at the corners of doorways, in or near crevices, etc. When I put out baits of any kind, I always mark [yyyy.mm], year and month, on them with a Sharpie™ or other indelible marker, then let them sit a day before setting them out so the smell of the ink dissipates. At your replacement interval you can tell when they've been set out, and that -may- help give a rough idea of their effectiveness - seen these insects or other sign of their presence? Fewer? More??

Production description said that 2 oz is for 100 square feet? then, should I purchase 10 packs of it for my 100 square feet space??

No. 1 box has 24 paks. So 1 is plenty.

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🚫🐛 Stop Silverfish Before They Start – Protect Your Space Like a Pro!

DISCREET UNSCENTED POWDER - Keeps your living spaces fresh and pest-free without overpowering odors.
PROTECTS FABRICS CARPETS - Ideal for safeguarding clothing, rugs, and delicate household items.
VERSATILE INDOOR APPLICATION - Safe and effective for attics, basements, closets, and more.
OPTIMIZED COVERAGE EFFICIENCY - Apply just 2 oz per 100 sq ft for maximum protection without waste.
POWERFUL 20 BORIC ACID FORMULA - Scientifically proven to eliminate silverfish effectively.

dekkoDekko Silverfish Packs deliver a potent 20% boric acid powder designed for targeted indoor pest control. With precise application rates and unscented formula, it offers versatile, discreet protection across multiple household surfaces including fabrics and carpets, ensuring your home stays silverfish-free with minimal effort.

M**S

Silverfish be gone!

These get rid of my annual silverfish outbreak, thank goodness!! I’m a repeat buyer and love that I never see anything but dead silverfish in my house after putting these baits down. Thanks for a trusty and reliable product!

16.09.2025

H**O

works very well

These always seem to work well

18.09.2025

M**K

Good solution to Silverfish in the closet.

No sprays or toxic packs. This is exactly the same product my Western Exterminator serviceman used to use. Very handy and convenient as well as effective.

7.07.2024

S**.

works well

I see dead bodies of silver fish. its working well.

13.09.2025

J**A

NOT 100% SURE BUT HOPE IT IS HELPING!

Not 100% sure of this yet. We still have silverfish, but may have had more if it were not for these. We do not even know if they eat this. We have tried everything that our ex-tenants left behind who were the filthiest "humans" alive! They left all the disgusting bugs and rodents for us to deal with when we had no choice but move back to The Woodlands, TX from the Chicago area. We had to put a lot of cardboard boxes upstairs in a bedroom so we have them when we have the great opportunity to move out when or if the market ever improves! Better than nothing and hope it works for those who have a problem with these very fast disgusting bugs! One thing to keep in mind, have your attic dusted with boric acid and your garage!

31.07.2017

O**R

After a few weeks, I stopped seeing silverfish scurrying about.. These Dekko Silverfish packs work.

I had a terrible silver fish problem in my shed and unfortunately that's where I store a ton of magazines and books. I didn't want to take any chances so I put the Dekko Silverfish Packs under all of my file cabinets & up on top of the shelves. I think I've been able to make a big dent in the infestation. I will quickly open the door and turn on the light but now (after a few weeks) I'm not seeing a silverfish scurrying about.

25.07.2025

M**E

Didn’t work at all.

I followed the directions and put these in groups of two or three in all of the areas where I was seeing silverfish. Not only did they not work, I was seeing silverfish crawling directly on and underneath them with no effect. I’m not sure if the product is I received is expired or simply does not work, but what a waste of money!

12.09.2025

U**A

Started to work within seconds!!

These work amazingly!! Saw we had a few baby silverfish starting to pop up and ordered these that night - the next morning they were at my door! Super simple to use - you just take it out of the box and put up to 3 in one area. It started to work in seconds!! It’s been about 30 minutes and I don’t see any anymore! 10/10 would recommend. Effective and a life saver!

19.04.2025