Control of Meloidogyne spp. on Russet Burbank Potato by Applying Metham Sodium through Center Pivot Irrigation Systems

G. S. Santo, M. Qualls


Metham sodium applied in October through center pivot irrigation systems was evaluated for control of Meloidogyne hapla at 374, 468, and 701 liters/ha and for control of M. chitwoodi at 468 liters/ha on potato. Metham sodium at the high rates effectively controlled M. hapla. No females were detected in the tubers at the high rates of nematicide application, whereas a mean of 19 and 69% of the tubers were infected at the low rate and in the nontreated controls, respectively. In the M. chitwoodi trial only 1.5% of the tubers in the treated plots were infected compared with 82% in the nontreated plots. Metham sodium effectively controlled M. chitwoodi to soil depths of 30, 61, and 91 cm. Key words: root-knot nematodes, Meloidogyne chitwoodi, Meloidogyne hapla, chemical control, Solanum tuberosum.

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