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Control of Root-Knot Nematode on Tomato Seedlings by Chemical Root-Dipping or Soil Application

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Treatment of tomato seedlings with oxamyl significantly reduced their root-knot multiplication when inoculated with second stage juveniles of Meloidogyne javanica before or after root-dipping. A negative relationship between increasing oxamyl concentrations and number of root-galls/plant was observed and there were no remarkable differences amongst various concentrations of oxamyl-dipping periods. Oxamyl at 5 k ha-1 was more effective than aldicarb in suppressing multiplication of M. javanica when infested tomato seedlings were planted in soil treated with these chemicals. Application of chemical root-dipping technique in root-knot nematodes control especially in tomato transplants is discussed.


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