Matt wrote:I just read a post on the ICPS forum that linked to a post on Terraforums that linked to a post on Orchidboard.com. This sounds like a cool idea and method for eliminating pests, including aphids. I'm wondering if anyone here has tried it before or even heard of it:
Basically you buy some dry ice and melt it in an enclosed area with the plant (like a terrarium or a plastic storage bin) and the resulting lack of oxygen kills most pests, though perhaps not mites. Sounds quite interesting and ingenious.
You know-- We've been using dry ice (frozen carbon dioxide) for years now to kill any insects that may be in rice and dry beans when we place them in containers for long-term storage. It works great in enclosed areas.
I have never thought about using the same process for pests on plants and in growing media. It's a great idea for experimentation. A person could place a chunk of dry ice on a plastic cup lid or something, place that on top of the growing medium but away from the leaves of the plant(s), then enclose it all in a plastic bag for a while. I wonder how long it would take to kill the insects, and I wonder if this would work on spider mites.
Very interesting idea. Thanks for mentioning it, Matt.