Bioterr Labitech, a new benzimidazole-based fitonematicide
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Abstract
Bioterr Labitech, a new phytonematicide based on benzimidazole, was used as a nematicide in contrast to organophosphate and chlorinate based pesticides. Several crops were used in these experiments first, to demonstrate the incidence of different parasite genus, and second, to control them using single or repetitive doses in various concentrations. No signs of phytotoxicity were found in banana (Musa paradisiaca), tree tomatoe (Solanum betaseum), roses (Rosa sp.) and tomatoe (Solanum lycopersicum). Meloidogyne, Paratylenchus and Pratylenchus were found to be the most abundant in soils with roses and tree tomatoes. Bioterr was able to control them down to numbers considered to be phytopathologically tolerable. Meloidogyne in the root knots were also sensible to the treatment. These results seemed to indicate that Bioterr acted locally with the exoparasites and systemically with the internal endoparasites. Differences in sensitivity to Bioterr were found between parasitic and saprophytic nematodes. Lesser mortality was observed in saprophytes as compared to parasite´s susceptibility. This difference is considered to be important do to the saprophyte contributions to the biochemical soil equilibrium of the crop.
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