In article , Joanne
writes
Today I noticed that my very neglected greenhouse-grown sweetcorn are
covered with spider mite (the leaves are covered, that is). I've put the
plants outside, as I assume that the outdoor cold will kill off the mites -
is that right?

Something does, either cold or wet or predators.

I'm also assuming that the sweetcorn will still be edible, yes?

Yes. Provided you don't use a pesticide on the spider mites, of course!
;-)

--
Kay
"Do not insult the crocodile until you have crossed the river"