When I was an agronomist in retail sales, one of my biggest challenges was soybean aphid control and management. 

It seemed like the season started earlier every year, and it did not end until the end of the growing season.  One of my observations was that some fields seemed to be a magnet for infestation, while nearby fields remained nearly free of aphids.  I was unable to figure out why.  Now, researchers at Penn State have identified that the choice of bacteria used to inoculate soybeans , may  provide protection against aphids.

Read more about what they have found here:   www.cornandsoybeandigest.com/e-digest/0429-natural-nitrogen-fixing-bacteria/?smte=wl

I found this article quite interesting.  This is an example of how little we understand about the complex relationships found between plants, bacteria, and the soil.  It also illustrates the importance of soil health and management.