Patent ID: 7241938
Filing Date: 2007-07-10
Classification: A01N

Abstract:
1. A method of controlling cyst nematode population in soybeans, comprising the steps of: producing a first blended composition of soybean varieties comprising the steps of: providing a quantity of a first cyst nematode race resistant soybean variety having resistance to a first race spectrum; providing a quantity of a second soybean variety selected from the group consisting of a cyst nematode race resistant soybean variety having resistance to a second race spectrum and a cyst nematode susceptible soybean variety; blending the first and second soybean varieties to achieve the first blended composition; planting the first blended composition to yield a soybean crop; producing a second blended composition of soybean varieties comprising the steps of: providing a quantity of a first cyst nematode race resistant soybean variety having resistance to a first race spectrum; providing a quantity of a second soybean variety selected from the group consisting of a cyst nematode race resistant soybean variety having resistance to a second race spectrum and a cyst nematode susceptible soybean variety; blending the first and second soybean varieties to achieve the second blended composition; planting the second blended composition to yield a soybean crop; and rotating the growing of the first blended composition of resistant or resistant and susceptible varieties with the growing of the second blended composition of resistant or resistant and susceptible varieties over at least two growing seasons to control soybean cyst nematode population in soybeans, wherein the first blended composition and the second blended composition are different.