Ortho Home Defense Hornet and Wasp Killer7, Kills and Prevents Wasps, Yellow Jackets, Mud Daubers, and More, 16 oz.

This has easily been the most effective pesticide I’ve found for dealing with wasps thus far, even managed to get rid of the wasps that were flying in & out under the overhang of my house behind the siding (expecting there is probably a hive under the siding, but I never saw another one fly out or in from there again after I sprayed that particular crevice on the front of my house from one end to the other). I suspect it leaves a residue behind that is deterring them from coming back to the same locations that you may have sprayed. I usually only see small hives (pretty rare to find one larger than a super ball, but it has happened), but spraying the area around it in addition to the hive itself is usually enough to keep them from going back to that particular place.Of course these wasps are pretty persistent & keep coming back (they’ve been returning to the same place under the siding for years, that was until I sprayed it with this poison), I keep finding new hives I have to take care of fairly regularly in different places, but this poison gets rid of any new clusters fairly quickly (until they come back & start a new one somewhere else). Because of this & running through cans fairly quickly, I’ve been purchasing these fairly regularly (usually 3 cans per order, but those typically only last a couple days to a week), but based on their effectiveness, I see the cost fairly cheap based on it’s performance.Note that I’ve also tried a Raid brand that can spray 30 feet away (spray, not foam), but the effectiveness of that product didn’t even come close to what the foam brands can do, I typically won’t purchase anything other than a foam pesticide when dealing with wasps anymore. Of course I am still looking for another option for those that keep returning after I take care of another one of their hives, so I might consider purchasing some kind of deterrent (maybe some kind of fogger) if I can find something that will work.I will point out however that it’s possible to get a can with a bad top on it, I did once out of the 9 cans I’ve purchased over the past few months (1 still unused, 1 I’ve started to use, the 1 can I had to throw away & get a refund on it). The top on it apparently was not correctly fitted to the tube & the poison came out on my hand 4 times before I eventually gave up on it & called Amazon to explain the issue. I didn’t see the loss of the can as a big issue however, just knew it would be sooner before I ordered more.