I'm looking for the most effective methods to get rid of spider mites that have invaded my plants. I've been living here for a few years and haven't had much luck finding suitable plant protection products. The ones available on platforms like Amazon and at Home Depot don't seem to do the trick. Are there any recommendations for products, perhaps even Japanese ones, that actually work?
6 Answers
I've had great success using Captain Jack’s Dead Bug Brew! I spray my plants every 5 days for about 3-4 treatments, and it seems to do the job. I've also heard good things about Sierra Naturals’ 217C, which targets both spider mites and their eggs, but I haven't tried it myself. Those 3-in-1 products might work well too, but I can't personally vouch for them.
I'm all for introducing beneficial mites to tackle the spider mite problem, although I'm not sure what the availability of those is like outside the US. They can be really effective in controlling pests without chemicals.
Using a miticide is definitely a recommended route. Regularly showering your plants with water or a mixture of miticide and alcohol can also help. Just be thorough—get into every nook and cranny because they only die on contact. And remember, follow-up treatments will likely be necessary to fully eradicate them.
If your spider mite problem isn't too severe, start by trimming off any crispy or damaged leaves. A good rinse with water can help dislodge the mites and webs. Make sure to flush the soil so the water runs clear, then try a mix of water and a bit of dish soap for spraying under the leaves. Keep your environment humid and reduce dust. I suggest repeating this soap spray every few days, but remember, these methods might not work if the infestation is pretty bad.
When I had spider mites, I kept it simple. A mixture of water and dish soap did the trick for me after consistent spraying.
Honestly, I've managed to get rid of spider mites just by blasting my plants with water for about 20 minutes, twice a week for a month. Using a strong spray from a sink nozzle or a hose helps get into all the little spaces. It's a bit of work, but I found it works better than chemical treatments for me!

Captain Jack's has been my go-to too! It's seriously saved my plants multiple times.