Patent ID: 7547823
Filing Date: 2009-06-16
Classification: A01N

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