<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Fluazaindolizine is a novel sulfonamide nematicide that is the active ingredient (a.i.) of Salibro™, a.i. Reklemel™. Its compatibility with <italic>Pasteuria penetrans</italic>, a bacterial parasite of root-knot nematodes (<italic>Meloidogyne</italic> spp.), was investigated in populations of <italic>M. javanica</italic> and <italic>M. incognita</italic>. Spores of a single <italic>P. penetrans</italic> isolate (<italic>Pp</italic> 3) or a blend of six isolates were incubated in the suspensions of fluazaindolizine (Salibro<sup>TM</sup> 500SC, at 5, 50, and 250 ppm a.i.) and oxamyl (Vydate™ 10 L, 10% (a.i.) at 25 and 50 ppm a.i.) for 1, 7, and 21 days; controls were incubated in water. Thereafter, the suspensions were washed through a cellulose filter (3 µm) so as to remove the nematicide, and the spores retained on the filter were suspended in water. Juveniles (J2) were exposed in these spore suspensions in Petri dishes and the number of attached spores was recorded. Neither fluazaindolizine nor oxamyl, at all the tested dosages, had any negative effect on the rate of spore attachment. The spore encumbered J2 from some experiments were used to infect tomatoes. Females without egg masses were extracted from the roots after 50 days and checked for eggs in ovaries and mature spores of <italic>P. penetrans</italic>. Despite no mature spores present in the females, there was evidence of a low percentage of infection in a few treatments. A possible explanation is that since the bacterium had been kept stored in the form of dried roots for a long period, its ability to infect nematodes was decreased.</p>
</abstract>

Fluazaindolizine is a novel sulfonamide nematicide that is the active ingredient (a.i.) of Salibro™, a.i. Reklemel™. Its compatibility with Pasteuria penetrans, a bacterial parasite of root-knot nematodes (Meloidogyne spp.), was investigated in populations of M. javanica and M. incognita. Spores of a single P. penetrans isolate (Pp 3) or a blend of six isolates were incubated in the suspensions of fluazaindolizine (SalibroTM 500SC, at 5, 50, and 250 ppm a.i.) and oxamyl (Vydate™ 10 L, 10% (a.i.) at 25 and 50 ppm a.i.) for 1, 7, and 21 days; controls were incubated in water. Thereafter, the suspensions were washed through a cellulose filter (3 µm) so as to remove the nematicide, and the spores retained on the filter were suspended in water. Juveniles (J2) were exposed in these spore suspensions in Petri dishes and the number of attached spores was recorded. Neither fluazaindolizine nor oxamyl, at all the tested dosages, had any negative effect on the rate of spore attachment. The spore encumbered J2 from some experiments were used to infect tomatoes. Females without egg masses were extracted from the roots after 50 days and checked for eggs in ovaries and mature spores of P. penetrans. Despite no mature spores present in the females, there was evidence of a low percentage of infection in a few treatments. A possible explanation is that since the bacterium had been kept stored in the form of dried roots for a long period, its ability to infect nematodes was decreased.

Compatibility of fluazaindolizine and oxamyl with <italic>Pasteuria penetrans</italic> on spore attachment to juveniles of <italic>Meloidogyne javanica</italic> and <italic>M. incognita</italic>


Journal of Nematology

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Compatibility of fluazaindolizine and oxamyl with  on spore attachment to juveniles of  and 


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Fluazaindolizine is a novel sulfonamide nematicide that is the active ingredient (a.i.) of Salibro™, a.i. Reklemel™. Its compatibility with Pasteuria...

Compatibility of fluazaindolizine and oxamyl with Pasteuria penetrans on spore attachment to juveniles of Meloidogyne javanica and M. incognita

Publié en ligne: 21 juil. 2020

Pages: 1 - 7

DOI: https://doi.org/10.21307/jofnem-2020-070

Mots clés
Biological control, Compatibility, Integrated nematode management, Nematicides

© 2020 Eleni Nasiou et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Compatibility of fluazaindolizine and oxamyl with Pasteuria penetrans on spore attachment to juveniles of Meloidogyne javanica and M. incognita

Publié en ligne: 21 juil. 2020

Pages: 1 - 7

DOI: https://doi.org/10.21307/jofnem-2020-070

Mots clésBiological control, Compatibility, Integrated nematode management, Nematicides

© 2020 Eleni Nasiou et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Biological control, Compatibility, Integrated nematode management, Nematicides