Answer: Without more description, it's hard to say what your bugs are, but corn is susceptible to corn earworm, a 1-inch long caterpillar that feeds on silks and the kernals at the tip. The easiest way to deal with them is to cut off the tip before cooking. In "Vegetable Gardening for Dummies" by Charlie Nardozzi and the editor of NGA, it says "You can place a few drops of mineral oil on the silks of each ear just as the silks wilt and start to turn from white or yellow to brown (don't do it too early or you'll interfere with pollination, but don't wait until the silks are all brown and shriveled either; you have about a week in which to work)--that should prevent worms from entering ears."
Corn is wind pollinated. Pollen from the tassel blows down along the silks to pollinate each kernal. For best pollination, plant corn in blocks, rather than in long rows. Blocks contain at least 4 rows of corn about 10 to 20 feet long. Rows should be 2 feet apart, with walkways between the blocks of 2-4 feet for easy access. Hope this info helps.
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