ABSTRACT

The reniform nematode (Rotylenchulus reniformis) has become one of the most dominant cotton (Gossypium hirsutum) pests in Alabama over the last decade. Cover crops that do not serve as hosts for these nematodes could decrease the inoculum for next season's cotton crop. Thirty-one cover crops were evaluated for host suitability to the reniform nematode in the greenhouse. Each cover crop was planted in sterile soil and inoculated with R. reniformis. The plots were harvested sixty days after planting. AU Robin crimson clover (Trifolium incanatum), Cahaba II vetch (Vicia sativa), and Licapo rape (Brassica napus) produced a reproduction factor (RF = final population / initial population) of greater than one. Other crops evaluated had a reproduction factor of less than one indicating a reduction in the R. reniformis inoculation for the next season. These selected winter cover crops could potentially fit into the cotton production scheme providing an aid in reniform management.