Hoe do I get rid of thrse on my cacti....they are killinh my pfickly pear.....if it is not this bug iy is one very similar.....I live in Alabama.....had the same problem last few years...I love cacti....succulens of all kinfs...but have never seen these big bugs before. At first I thought thehy were potato bugs or giant stink bugs....... please excuse my script as I am on my phone and the space to write is. So small I cant see it. Thanks ever so much Sharon