Answer: The best way to avoid earworms in sweet corn is to place a few drops of mineral oil on each silk as it's developing (just before it starts to turn brown). The mineral oil suffocates any earworms in the silks. Just apply a few dropperfuls to the silks and that should control the problems. Also, look for corn varieties that say they have tight husks and good tip coverage. That will also reduce the problem.
Q&A Library Searching Tips