Yes some varieties are very prone to it. The best solution is to reduce N rates and number of plants per acre. Too many plants is pretty much a sure fire way to contribute to multiple cobs, as is overloading the N. Research in our local centre reckon that maize needs no more than 40u/ac.
As an aside I planted an ‘Irish’ type variety at the end of June after sorghum that failed due to soil capping. The FAO index was 160 and we planted it at 111 and 69k plants per hectare. Results should be interesting.