Yes, one of our other members cleared out his greenhouse of these things heating it to about 120*F. You're reporting using temps much higher than I've seen anyone else reporting, but if your plants are living through it you could do a great service to the community and outline in a thread how you've done it. Pix always help!.
Before you read any further, anything here is based purely off my own anecdotal data. I DO NOT recommend people root drenching their plants in 130 degree water by any means, it was a last ditch effort for me and cost me several of their lives and still DID NOT alleviate me of RA's.
What I can agree to do tho, is tell you what happened so everyone can take from it what they wish and make their own hypothesis.
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The approach I took was a 130-135(54-57c) degree hot water bath for my aeroponic clones. To help paint the picture, these are clones sitting in air, with the little neoprene sleeves suspending them into a Rubbermaid. I took the clones out of the cloning unit 1 by 1 and completely submerged them in H202, then completely submerged them in 5 gallon bucket filled with 130-135(54-57c) degree water. Fortunately for me, my water heater puts out 130 degrees easy so I hooked up a shower head tot he faucet and rinsed them down while dunking them.
Trust me, I thought the girls we're all going to die for sure. That wasn't the case.
I monitored them in a new environment and noticed every single aphid I could see with my naked eye was dead, no movement, nothing. I didn't have the microscope at the time so I couldn't get down to really see what else was going on. My thoughts were if the larger aphids died a quick death, anything smaller would without a doubt be doomed as well.
Not necessarily the case.
What did happen tho is it shocked the girls so bad from burning off a majority of the root hairs, that it sent them into this daze, that took them a month to pull out of, while under absolutely perfect care. The sad part is somewhere a little aphid survived, or was reintroduced, as those flyers were out and about within 1 month of transplant, and only hitting one of the 3 sticky traps at a rate of 1 every 2-4 days.
Can I say the hot water bath worked?
No and Yes. There was a lot of room for user error do to many factors.
Do I think it can work?
Yes, but you need to take your time and make sure you have the heat dialed in. You MUST BE THOROUGH. If I were to ever have to do this again I would have coupled it with some other form of aphid defense, as well as a nuke of the enire re-introduction area.
The only way I would use this with soil, or any other medium for that matter would be as a last ditch effort. These temps would most likely destroy most microbial life on contact.
The one thing that was for sure, is after I hit them with the hot water, there was ZERO visible RA activity for 2 weeks. Everything was dead as fuck. Nothing moving, nothing crawling. Done.....
As far as the HUMAN EYE could see.
That's my experience, take what you wish from it.
I'm pretty sure there are a couple Scholarly articles about heat treating RA's with hot water, floating around. I just have to dig them up.
Cheers
-sK