Rotations with coastal bermudagrass, cotton, and bahiagrass for management of Meloidogyne arenaria and southern blight in peanut

• Published in: Journal of nematology Vol. 26; no. 4; pp. 665 - 668
• Main Authors: Rodriguez-Kabana, R. (Auburn University, Auburn, AL.), Kokalis-Burelle, N, Robertson, D.G, King, P.S, Wells, L.W
• Format: Journal Article
• Language: English
• Published: United States Society of Nematologists 01.12.1994
• Subjects: AGENT PATHOGENE; ALABAMA (EU); ALABAMA (EUA); ALDICARB; ALDICARBE; ARACHIS HYPOGAEA; CONTROL CULTURAL; CONTROL DE NEMATODOS; CORTICIUM ROLFSII; CYNODON DACTYLON; DENSIDAD DE LA POBLACION; DENSITE DE POPULATION; ENFERMEDADES FUNGOSAS; GOSSYPIUM HIRSUTUM; LUTTE ANTINEMATODE; LUTTE CULTURALE; MALADIE FONGIQUE; MELOIDOGYNE ARENARIA; MONOCULTIVO; MONOCULTURE; NEMATODE DES PLANTES; NEMATODOS DE LAS PLANTAS; ORGANISMOS PATOGENOS; PASPALUM NOTATUM; RENDEMENT DES CULTURES; RENDIMIENTO DE CULTIVOS; ROTACION DE CULTIVOS; ROTATION CULTURALE; nematode; nematode control; Arachis hypogaea; cotton; forage; cultural practice; Sclerotium rolfsii; bahiagrass; bermudagrass; Cynodon dactylon; aldicarb; grasses; Meloidogyne arenaria; Paspalum notatum; crop rotation; Gossypium hirsutum; peanut; root-knot; southern blight; sustainable agriculture
• ISSN: 0022-300X; 2640-396X

The efficacy of coastal bermudagrass (Cynodon dactylon) as a rotation crop for control of root-knot nematode (Meloidogyne arenaria) in 'Florunner' peanut (Arachis hypogaea) was evaluated in a 3-year field trial. Coastal bermudagrass-peanut rotation (CBP) was compared with peanut monoculture without nematicide (P-) and peanut monoculture with aldicarb (P+). The performance of CBP was also compared with 'Pensacola' bahiagrass (Paspalum notatum)-peanut (BP), and 'Deltapine 90' cotton (Gossypium hirsutum)-peanut (CP) rotations. Each rotation crop was grown for 2 years (1991, 1992) and peanut was planted without nematicide the third year (1993). In contrast with peanut, the alternate crops of bahiagrass, bermudagrass, and cotton did not support M. arenaria populations. In 1993, the lowest numbers of M. arenaria second-stage juveniles (J2) in soil were in plots with CP and BP; these rotations resulted in the highest peanut yields. CBP failed to increase peanut yield and resulted in the highest population densities of M. arenaria J2. In 1993, aldicarb reduced J2 densities in the soil but did not increase peanut yields. Rotations of BP and CP reduced incidence of southern blight (Sclerotium rolfsii) in peanut, but neither CBP nor aldicarb affected the disease