HELP! Wasps are decimating my cats!
I had a good crop of Monarch (30-ish), Black Swallowtail (15-ish) and Tiger Swallowtail (15-ish) cats. They were still quite small but had plenty of food (my ENTIRE garden is devoted to attracting butterflies and providing host plants, and it's quite a large garden). I go on vacation for 2 weeks and return to find perhaps half a dozen cats left, zero Monarchs or Tigers, just Blacks. I am nearly certain it was the wasps that have done this, as I've seen them attack and kill, and on occasion fly away with (!) my cats. They seem to do it for no other reason but to kill the cats. I watched a wasp attack a very mature Monarch cat, do something to it and fly away before I could get my trusty tennis racket. I brought that cat in, even gently rinsed it, but in just a few hours it was dead. So, first question, WHY do wasps attack cats like this?
Primary question, how to keep the wasps away or kill them (preferably the latter)? I have an electric tennis racket that zaps them and have ordered (but not yet received) 2 different kinds of traps for them. I do of course check my property for nests and kill them, but I'm in a neighborhood not far from woods. They could be on any of my neighbors homes or in the woods.
Any good ways to keep these serial killers away from my 'babies?'
Let me link you to the 2 products I've just ordered, in case any of you have experience with them and can offer advice on their efficacy and how best to set them up.
These are passive traps. Are there products out there to repel wasps, or kill them? The zapping tennis racket works, but I barely make a dent in their numbers (probably) however gratifying it is for me. Is there an active denial system to repel them w/o repelling b-flies as well? A toxin targeting only wasps? A plant that repels only them?
Please help, it's breaking my heart to see my cats disappearing. I am very ill and this is my one and only hobby until I get back on my feet so it's quite important to me.
Thank you even for just reading. Any suggestions are MOST welcome and sincere thanks to those who offert them.