Source: Pioneer

Although 2010 was not a significant year for aphid infestation, that doesn't mean growers can or should ignore this yield-robbing pest in 2011, say experts from Pioneer Hi-Bred, a DuPont business.

After 2009 presented a very widespread, severe year for aphid infestation, the 2010 growing season was more limited, with only pockets of serious aphid problems, largely in Minnesota. 

Original news release