How potassium nutrition can suppress soybean aphids | Tom Bruulsema, Christina DiFonzo and Claudio Gratton

The soybean aphid has become the most important insect pest of soybeans in the North- east and Midwest regions of North America. It often damages soybean  plants that  are K-deficient more than  those  that  are not. Recent research in Wisconsin and  Michigan has found that K-deficient soybeans can in some, but not all, instances suffer more from aphids than soybeans without K limitation, and that the causes may be related to amino acid composition of the phloem sap.

Need more information about growing soybeans? You can always return to the soybean fertilizer & soybean crop guide table of contents