Maybe the bleach solution I used was too weak? It was 2 tbls bleach per gallon of water. Haven't tried the neem oil. And the insecticidal soap didn't seem to do much. Am hoping that the IPA (is that short for isopropyl alcohol? If so, I like it ) has worked on the ones I used it on. So far, since the orchids were soaked, I've not seen any adults on the sticky traps. But the plants are still sequestered under the food umbrellas. Darn those thrips anyway!! I'm thinking they likely flew in through the screens on my windows this summer. It was so hot and dry here that the windows were open a lot! Anyway, hope your routine worked, and please be sure to let me know what the entomologist says!