The cotton rotation test is a long term study designed to identify suitable non-host crops which will improve cotton production in fields infested with high populations of reniform nematodes (Rotylenchulus reniformis). Currently, summer crops (corn, soybean, and peanut) are grown in a one, two or three year rotation with one year of cotton. One half of the cotton following these rotation systems is fumigated with Telone II to determine if cotton yields can be further increased with a nematicide following crop rotation.