How to Save a Damaged Cactus
A: Cut the wire.
I’m hoping for a little help regarding an issue I have with a very large and beloved peruvian apple (cereus) cactus. This cactus is probably 20 ft tall with a large trunk (about 2-3 feet in diameter) and many, many, many branches. The previous house owner bolted a wire to the house and then wrapped it around the cactus trunk (about 3 ft up from ground) and back to the house. The issue is of course… the cactus has grown and the rubber tubing around the wire has disintegrated allowing the wire to begin cutting through the cactus. Probably 1/4 to 1/2 inch divot into the trunk. So my question is… should I cut the wire and pull it out of the cactus? And is there anything I can put on the damaged area to prevent infection? Any help would be greatly appreciated.
Yes, cut out the wire ASAP! It can girdle the cactus and eventually kill everything above the wire by strangulation…. Any injury to the skin can be painted or sprayed with standard hydrogen-peroxide to disinfect and help seal up the damage. If the green “Skin” is cut all the way around you may loose the top so make sure to take your time and remove the wire carefully so not to do any additional damage. If you can email us a photo we will try and give you more complete advice.