Re: Hot bath against root mealybugs
Posted: Thu Nov 30, 2023 9:49 pm
I'm in UK so yes, it'll be in hibernation. I'm more concerned about making sure the new cactus I've bought doesn't also get infested, and then I'll decide what to do with the infested one (throw it away or try to save it). Are you saying that any treatment shouldn't be done when it's hibernating?ohugal wrote: ↑Thu Nov 30, 2023 8:51 pm If the cactus is hibernating, a systemic isn't as effective as it could be.
Where are you located? Is your cactus in hibernation or is actively growing? What species is the cactus? If it is (severely) weakened by a mealybug infestation, I'm not sure the hot bath method is a good idea.
I would unpot the plant and remove as much soil from the roots as possible. Toss the soil in the bin and get rid of it as soon as you can. Don't recycle it. It's not worth it. I'd hose the plant down in the shower and then submerge it once or twice (7 to 10 days apart) in methylated spirits. You could also soak it in a contact insecticide. Then leave it out to dry in well ventilated spot. You can then repot it into fresh soil and a new pot. Make sure the soil is dry and not damp. If you cactus is in hibernation, don't water it until the growing season.
I think for the new cactus I will just pot it up and see what happens rather than try any preventative measures before potting it.