Why does Corn Fall Over
How to Prevent and Correct Toppling Corn Stalks
Healthy vibrant corn stalks should be growing straight up. Corn stalks that may appear otherwise healthy but are falling and toppling over are generally over fed, it's a condition known as lodging. So long as the stalks have not snapped the condition is not irreversible. First off, cut back on the fertilizer, miracle grow or whatever you have been using, although corn is a heavy feeder too much is still too much.
Excessive nitrogen in most plants causes lots of leaf growth, but lackluster performance so far as fruit production is concerned. Corn is not an exception, if there is excessive nitrogen the leaves will grow faster than the stalk or prop roots can keep up with. You can Test the soil for excess nitrogen with inexpensive test strips.
Assuming your nitrogen levels are excessive you'll want to stop fertilizing, at least a few weeks. Later you might want to switch to strictly well aged compost in moderation.
Depending on how far the stalks have toppled, it's also a good idea to prop them up. Create a dirt and/or mulch mound oat the base of each corn stalk. You can also use stakes to train them to grow straight again.
Wind Lodging of Corn Stalks
Outside of excessive fertilizer - Wind Lodging is another possibility. Common sense should be able to tell you if you've had high winds. If you are uncertain do the nitrogen test [above]
European Corn Borers
A third possibility is the presence of European corn borers, which are know to weaken the stalks. Check for the corn borer and take appropriate measures to eradicate the little buggers. In addition to corn, They feed on over 300 different plants, including green peppers, and bush beans. See: Identification and Control of Corn Borers