Apr 26, 2021 - 06:56 AM
Riptide is used in automatic timed misting systems and is much too expensive to use in a backpack spray.
Any outdoor treatment for mosquitoes will kill any insect. The problem with midges and blackflies, and even mosquitoes to a large extent, is that they can swarm in from surrounding areas within minutes and never touch any surface that you sprayed. Mosquitoes also have a keen sense for humans and animals at night. They can see from a mile away and can attack with laser beam precision, also bypassing all chemicals you applied.
So the answer to how long it lasts outdoors is simple. It doesn't. Any outdoor product applied will kill what is there at the time of application. It will also help to keep "on property infestations" low. This will last until the first good rain or hot day. Then all of these chemicals begin degrading rapidly within days or even hours sometimes to the point where they need to be reapplied. This is why automatic misting systems are popular across the south because they dispense a "mist" of chemical such as Riptide or Sector 3-4 times every day. This is the best mosquito control possible, but at best is only 98% effective. Which is very good.
What 98% control means is that if there are 100 mosquitoes in your back yard, 98 will die. You can still get bit by 2 of them. For some people getting bit by 1 mosquito is too much and they deem everything that they did or spent money on ineffective. For those people I recommend to either use a repellent such as OFF, or stay inside.
As you can see there are a lot of questions surrounding this issue. I have some more information here - http://www.epestsupply.com/how-to-kil...
Hope this helps.