Genatac, First, Isolate your Crown of Thorn, ASAP. Keep it away from all other plants. I spray with soap and water every so often; it keeps mites at bay, but if you have WF infestation, soap and water isn't going to work. Though it doesn't hurt doing spraying to keep other insects away. You said you used Yellow Sticky Traps? What size are the traps? The Yellow Traps should be new, the glue fresh. If you used the small traps, (4x6,) since your Crown of Thorns is large, perhaps 2, 3 or possible 4 traps are needed. You asked if anyone had a similar experience..Yes, I did. My plants are set outdoors every summer. Autumn came, plants were brought back in. While misting, I noticed little white flying insects on a Hibiscus, then another plant and another..BTW, I have over 300 indoor plants, so can you imagine finding these creatures on every single plant? Plants were sprayed with soap/water and a few other ingredients. I don't use chemicals) but nothing helped. What's ironic, I got a catalog in the mail from Gardens Alive a few days before finding the WF. While browsing pages, I discovered, for the first time, Yellow STicky Traps. I was so desparate, I ordered several packs. After they arrived I attached to plants, section by section. 36 traps. Within a week every WF died. The traps were loaded! Each traps filled from end to end. To this day I vouch for Yellow Sticky Traps. BTW, I found the host plant which caused the infestation. An outdoor, hardy Hydrangea. If it was my Crown this is what I'd do. First, either take outdoors or hose/shower indoors, spraying all foliage/stems. Tilt the Crown of Thorns so soil doesn't get wet. Let air dry. In a spray bottle I'd mix soap, Fish Emulsion, (1 capful to a 16 oz bottle of water) garlic and citrus rind. The night before spraying I'd set a clove of garlic in water. In place of citrus rind, lemon juice would suffice. Shake well. Spray thoroughly, all parts of plant, leaves and stems..BTW, I'd spray outside. I'd then add 3-4 Yellow STicky Traps on plant. Traps should be yellow, and glue fresh. If you have time, you can make your own traps..Cut out yellow cardboard or paint yellow. Using Tanglefoot (glue) paste on cardboard strips. Tanglefoot is very strong, probably stronger than Superglue. But it's easier buying premade Traps. lol. It's important glue is fresh, that traps werent' lying around and glue dried. After my infestation I purchased more traps in case WF returned. They didn't, but over time the glue dried up, even though traps were sealed. So, I hope your purchased fresh traps. Are the traps still on your Crown? If so, do you see WF? Since your Crown is/was infested, traps should be filled. If traps are loaded, replace with new Yellow Traps. Some say these traps are reusable, but in order to reuse you'd need glue. Good luck, keep us posted..Toni

Maternut..Wish we were neighbors. I have more COT's than I know what to do with. Can't toss them, but they sure take a LOT of room. When they were purchased, all were babies..Guess I didn't think they'd someday grow larger. lol. Larry. Cold shouldn't harm COT's, but those I recently brought indoors, 'after several nights @ 35F/1.7C, a couple nights dipped 32F/0C, a good number of leaves dropped..Some leaves had frost-bite. But like you said, Euphorbias are tough. Unfortunately, not tough enough to be outdoors for long periods at 32/0. Wonder how OP's COT is doing.

Daniella - I'm trying to follow the advice - keep them root bound. I don't want to up them to pots. But some are in those clear cups - and a couple are almost all roots - they wilt if they're not given water every two days. (at 72-75 degrees) - to me - that's telling me - oh ohhhhhhhh - need more pot room. Here's one for you gurus out there. Soem are in dark green tumbler cups, and others int he cheaper clearish cups. Not that I haven't lost some in the clear ones - but the roots - and those in the "clearish" cups - seem to be doing better. Does that have something to do with the roots receiving some light? It's just something I'm noticing. Is it just a coincidence? There are those int he green cups doing ok - but right now - as they're trying to get going - it seems the "clearish" cups - those are doing better.

Cat....I think I stick to tried and true entirely too much. I think I should be trying to find something a little different to grow like you and Bill. I've never heard of guinea hen flowers. I do like toad lilies but I tried one and it didn't make it through my winter. I hope you will post photos later. Bill...I never saw a slug in my yard until last year. We had a lot of rain that wouldn't let up and they started showing up. Where do they come from, out of nowhere? [g] You remind me of me... when I can't sleep in the summer, I will get up and go out in my pjs with the flashlight and a paper cup and look for earwigs, which I hate! They seem to love me for some reason. Just the same I enjoy being out there at that hour. You get to see all the night creatures and some of the fragrant plants make the trip worth it. And if there is a moon out, a warm breeze and it's very quiet, it's almost magical! And you can't see all your mistakes at night. [g]