I'm in desperate need of help!

Bio warfare , use predator nematodes they crawl into insect larva and start throwing up bacteria that slow kills them over the course of about 3 days. But I don't know if those nutes you're using would kill them. If you were organic the nematodes would for sure live.

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Here's a thought... The way you describe what's sitting under you would keep me up.
http://www.centraliaradon.com/radon-gas-exposure-symptoms-avoid-poisoning-family/