Larry, the part that made me wonder about whether this actually is a reference to hybrids or GMOs was
"There are only 2 or 3 strains of non GMO sweet corn available"
There are many hybrid varieties available that are not genetically modified.
(sorry if we've gone a bit off topic, but since the issue was raised I would like to see it clarified, because I believe there
is a lot of confusion about what genetically modified actually means.)