BASF Alpine WSG Water Soluble Granule Insecticide, Indoor Outdoor Pest Control for Ants, Flies, Bed Bugs, German Cockroach, 200 Grams

I am a retired pest control technician with over 27 years in the industry. This product was my go to for German cockroaches, ants, and other insects. I did not use it for bedbugs, but if you’ve got a German cockroach issue this stuff is phenomenal, same thing with ants phenomenal, labeled for interior and exterior use. You cannot go wrong with this product when you apply it according to the label. It mixes with water and there is no smell or very little smell associated with this product. You can apply it right on the German cockroaches or after it dries, they don’t know it’s there and they crawl through it and it gets on them and after they groom that’s it lights out. Yes it is pricey. The only product that kills on contact is aerosol pesticides. This does not kill on contact, but they will die and rather quickly. BE SURE AND READ THE LABEL!

If you've found this review because springtails have invaded your house and you've realized almost nothing kills them, I'm sorry. When I first moved into my place, I discovered it had a massive springtail problem (as in, I killed *hundreds* everywhere every single day). This area had apparently been a thickly wooded forest before they built the complex. They also insist on having flower beds with wood chips surrounding the outside of each building, as well as running the sprinklers every night, which creates a nice damp home for things to breed in (fyi, if this doesn't match your living situation at all, you may instead have a leak somewhere that's creating an ideal home for the springtails, so check for that). My complex's pest control was useless, no matter how many times they came out. I tried diatomaceous earth in crevices, but I think I would have needed to sprinkle it literally everywhere to kill them all, which wasn't an option. Enter Alpine WSG. I'm not going to say it's my favorite thing ever to do my own pest control, but using these granules is pretty easy. Just invest in a decent pesticide sprayer and pesticide-safe gloves, dress in long sleeves and pants, follow the mixing directions, and start spritzing. I usually treat at least a 2-3 foot perimeter around the outside of my house with liberal soaking of the piles of woodchips. I'll repeat this every few weeks about 3 or so times starting in spring, and they'll stop popping up inside completely afterward and will be rare to see outside for 4-6+ months. I have 20 lbs dogs, and this has been fine to use around them. Just wait a few hours before letting pets outside to make sure it all dries first. I also sometimes use the spray inside in select spots, and it appears to be very long-lasting. I've unfortunately found some roaches inside recently, despite being very clean (the complex says they're "wood roaches," but I'm dubious), but all of them were either dead or dying next to spots I'd previously sprayed. It had been a few months and multiple moppings since I last sprayed inside, so I decided to put down a fresh coat to nip the problem in the bud, and that seems to have done it. I haven't found anything inside but one dead centipede (did I mention it's not just springtails that live in the woodchips?) since. Fyi, I've found that Alpine doesn't kill most spiders, no matter the size (we have both tiny house spiders and very big ones -- wolf? grass? --here), so you will need something else for those. I also have had mixed results with the earwigs that wander in sometimes. They do eventually die, but I can't say for sure if that's the spray or their natural life cycle; they always seem pretty lively whenever I find them. As for ants, I have never had a problem with them because Alpine is incredibly effective against them. While the complex and my direct neighbor have sometimes had a big ant problem, when I've found groups of them by my place, they've already all curled up and died before they made it within two feet of my front door. This spray also does kill crickets, which is not my intention, but if you have a big problem with them, this would work. While I can't say if it's due to the Alpine, my dogs' own flea treatments, or just pure luck, I've also never had a flea problem in my yard or house.

When I moved into my first home, we had a bit of a roach issue. During home inspections, we negotiated the replacement of some flooring and crawl space joists due to termite damage as well as treatment for that, and my theory is that the spray they used was incredibly effective at killing roaches in the crawl space, but drove the nests under the floor upwards, right at the same time that they opened up the floor. Pro termite poison (Terminix) is pretty much nuclear on roaches too, but not safe for interior use whatsoever. Now when I say we had roaches...we had DOZENS of them. In the garage, in pretty much every room randomly, and especially near the area of the repair. A full blown infestation, all happening between the time we paid for our house and the time we moved in. We were not happy at all. My wife was about to sign us up for a $1000+ yearly contract to get continuous treatment, but a quick conversation with chatGPT and some digging on reddit pointed me towards this stuff and some other cheap products like gels & IGF disks. But this is the stuff that actually kills them, the other things are more for continuity and to prevent future re-infestations. I only used 1 packet for my entire 2000sqft house, spraying all over the interior & the porch and around the exterior. I heard it works very well, but I was amazed with just how well it worked. And do mind, I did try big box store sprays that costed $5 more than this at first too, and the roaches avoided touching it (probably because it had an odor). They never saw this coming. I remember the garage was a super hot spot, and I'd see at least 3 a day in there. I sprayed this stuff before the night and went to bed, and honest to god there was 30 dead roaches in there the next day. Our house looked like a roach graveyard, every little bugger that touched a surface it was on would keel over within about 20 feet max. I witnessed a couple of them after the initial massacre come from the ceiling down, and you could tell they didn't sense it like they did with the big box poison and try to avoid it. They'd march right over it, then start to slow down, and then violently twitch to death. Never had any health issues myself from it nor did my dogs or cats, and they seemed to avoid eating the roaches that were poisoned by it - not sure if there's something in it that deters them or not. It's now been 8 months since I treated the house, and I haven't seen a single roach inside in 6 months, and I saw 1 a week tops after the first week of treatment, and they always died on their own. They say this stuff doesn't work great outside, but I still occasionally find dead roaches on my wooden porch, even after lots of rain and snow. This stuff is magical and I will use it forever - it's a silent killer and the roaches seem to have no idea it exists. Oh, and I haven't seen any other type of bug survive it either. We occasionally would get an odd wasp or ant in the house; haven't seen a live once since applying, even months later. I only ever find them dead on the floor. ONE CAVIAT - stink bugs seem to know it exists. They avoid the floor like the plague, but just being in it's vicinity seems to cause them to freeze up. There was once what I thought was a dead stink bug on my window sill and I went to remove it 3 weeks later (yes I know that's lazy) and it was still alive, just very slow. I have noticed ants and spiders tend to avoid even coming in the house since applying it. Good, we can both keep to our own domains. Roaches and wasps and moths happily come in, but die shortly after contacting any surface it's on.

This insecticide is easy to mix and apply, making it a convenient option for indoor and outdoor pest control. The water-soluble packets simplify preparation, and the formula provides effective coverage for a variety of common household pests. A little goes a long way, making the product economical as well. Overall, it’s a practical solution for maintaining a pest-free environment, works quickly.

If you have a roach infestation, don’t wait, buy Alpine WSG now! I highly recommend getting more than one packet. Following the directions, I mixed 2 packets in a gallon pump sprayer I bought from Amazon and sprayed the entire perimeter of an Airbnb we’re renting. This is a non-repellent meaning that it will not encourage roaches to avoid the area. Instead they will carry on as usual, unknowingly walking over the insecticide, bring it back to their friends and family, and create a mass unaliving. The city here has a major roach issue we were not aware of so we were quite surprised to see so many roaming around our second night here. The following day after spraying, I saw one slow moving roach. The following day was the same. The next day, I saw one dying roach. And now none at all. We no longer see entire family reunions of roaches here and I’m glad I can help the host out, even for a little while. Saved them hundreds of dollars and gave me and my family peace of mind for the remainder of our stay. It dries on clear, lasts about 30-60 days, has a very faint smell when applying but that quickly goes away when it dries. Safe for most pets once dry. Just make sure to rotate products every once in awhile to prevent tolerance in future roach generations. It kills other bugs too which is a nice plus depending on your situation. Very easy to mix and apply.

4 stars right now but still waiting on how the products work ive used it bow for roughly three weeks. Its has greatly decreased the number of roaches ive been spraying once a week and I do still see them.but bot even close to like it was. I am so happy about that. It was becoming a issue on my mental health so I am so thankful for this product. Along side it I use the sticky traps with bait they work amazing and the spray to keep the roaches from reproducing. I also have been cleaning the areas I see them gather th most. Behind the fridge(a nightmare) and near our electrical outlet specifically for our tv and wifi. I also started shutting it off at night they are attracted to the warmth and they like to stay near water and food thankfully for our house they dont venture to the rooms because of my no food allowed in rooms policy.

Got rid of the ants in no time flat! Keeps em away for a long time as well. Been upwards of 5 months and still no ants. We were infested prior. You can also in tough to reach spots get Advian Ant Bait and put it on little bait traps and it will get the ones not so low to the ground as well. Both are safe around kids after drying, just keep the ant bait up where they can't reach it or hidden behind things or in corners. The Alpine though 10/10 would recommend and have to a few people already and they got rid of their ants too.

I live in a neighborhood that’s being gentrified and when the leases of the rentals expire and those people moved out I can only describe what happens as a swarm of roaches and various other bugs coming from those homes and the trash/furniture they leave outside. I had to tried everything, even a big named pest company. Nothing worked, until I ordered this. Treated outside, inside, and around the perimeter. I’ve seen maybe 3 bugs in 5 years. Once every 3 months I spray the inside/outside and it takes care of itself. I also use GENTROL discs in combination with this spray, It is a winning combo. If you are looking for something that’ll work, you have found it.