A Potential New Biological Nematicide for Meloidogyne Incognita and Rotylenchulus Reniformis Management on Cotton in Alabama

Meloidogyne incognita (root-knot nematode) and Rotylenchulus reniformis (reniform nematode) cause significant damage to Alabama cotton crops each year.   The objective of this study was to test variable rates of a biological nematicide to determine its efficacy of managing Meloidogyne incognita and Rotylenchulus reniformis on cotton grown in Alabama.  All treatments were applied to the seed and were compared to an untreated control and Fluopyram, the industry standard. Plots were replicated five times arranged in a RCBD and planted in two separate fields.  Plant height, shoot fresh weight, root fresh weight, and biomass of the plants were taken 45 days after the tests were planted.  At this time nematode eggs were also extracted from the root, through the process of sugar centrifugation then enumerated.  Seed cotton yields were also collected at the end of the growing season.