Igrokush1, over in a different thread, you posted this:
mikec, what I'm saying is that ANY chemical of concentration will fry foliage, to put it simply. Any yes, in fact, roundup kills bugs without killing plants. It's called roundup ready crops. They are GMO's. A very common term in the horticultural community. They involve the coding of genes, and with the proper sequence, another gene from a completely different species is spliced in using a 'gene gun' which uses gold coated pellets to permeate the cell wall in order to get the gene in. I'm sure you have heard of Monsanto, he's not a fictional name. Watch videos of his productions, and they may more clearly explain how roundup kills bugs without killing plants.
Most people here have heard of Monsanto (which is a company name, not a "he") and many of us know a bit about GMOs. And anyone with even a passing familiarity with the topic can see your error here.
As has been repeatedly explained to you, RoundUp (glyphosate) is an herbicide. It's used to kill plants, not bugs - and it's very broad-spectrum, capable of injuring most types of plants if it contacts absorptive tissue. "Round-Up Ready" crops are genetically-modified versions of plants such as corn or soybeans that are tolerant of glyphosate, so that the herbicide can be sprayed over them to kill the weeds on the field (but not the crops). It's not used as an insecticide (bug-killer). There is the possibility of selecting for herbicide resistance in the target weed populations (see here
for example), but insect pest resistance is not an issue there.
There are other GMOs which do target insect pests. A common example would be "Bt corn," maize plants which have genes inserted that allow them to produce a protein normally produced by Bacillus thuringiensis
(Bt), which is toxic to many species of Lepidoptera (butterflies and moths, including maize pests such as the European corn borer or western corn rootworm), but is non-toxic to most other animals. This is intended to reduce the need for conventional insecticides, although there is the potential for resistance to the Bt toxin to develop in the insect populations (lots of literature on this - see here
GMOs are a thing. Round-up Ready crops are examples of them. Other GMOs target insects. They aren't the same thing.