Knowledgebase
Wasp Traps #925931
Asked March 12, 2026, 4:32 PM EDT
Larimer County Colorado
Expert Response
Because the solar wasp trap uses a generic "sweet" bait, it can attract non-wasp insects, like pollinators. The yellow jacket traps are better because the baits only attract yellow jackets. You would want to put those out NOW because they will capture the queens and not the drones. Take it down in May - after that point, you'll just collect the workers. The queens fly early to establish their colonies for the season.
You can use the cacti mix, but I would suggest you mix it with other potting media. There is probably a lot of sand in it, which will decrease water holding capacity and drain quickly. Perhaps do a 3-1 ratio of potting mix to cacti mix (or 2-1).