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<p>This study aimed to assess the compatibility of herbicides with <i>Bacillus firmus</i><i>, </i><i>Purpureocillium lilacinum</i><i>, </i><i>Pochonia chlamydosporia</i>, and <i>Trichoderma harzianum</i>, as well as their impact on <i>Meloidogyne javanica</i>. The experiments were conducted under a completely randomized design with nine treatments and five replicates. The treatments included control, diclosulam, sulfentrazone, flumioxazine, imazethapyr, S-metolachlor, pyroxasulfone, imazethapyr + flumioxazine, and glyphosate. For <i>B. firmus</i>, colony forming units per milliliter (CFU mL<sup>-1</sup>) were counted; for fungi, the mycelial growth speed index (IVCM – mm day<sup>-1</sup>) and percentage of inhibition were measured; and for nematodes, the mortality rate was determined. Results showed that imazethapyr, S-metolachlor, and glyphosate were incompatible with <i>B. firmus</i>. Regarding <i>P. lilacinum, P. chlamydosporia</i>, and <i>T. harzianum</i>, these herbicides, along with sulfentrazone, exhibited the highest inhibition percentages. The most significant mortality rates of <i>M. javanica</i> were observed with imazethapyr, flumioxazine, and S-metolachlor. In conclusion, S-metolachlor, imazetapyr, glyphosate, and sulfentrazone were identified as the least compatible with the tested biological nematicides.</p>

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In vitro compatibility of herbicides with bionematicides and action on Meloidogyne javanica

  • 期刊论文

  • 发表日期：

    2025年1月27日

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  • Paula Fernanda de Azevedo Ribeiro,
  • Andressa Cristina Zamboni Machado,
  • Leopoldo Sussumu Matsumoto,
  • Nathalia Dutra Lameu,
  • Marcelo Giovanetti Canteri

摘要

This study aimed to assess the compatibility of herbicides with Bacillus firmus, Purpureocillium lilacinum, Pochonia chlamydosporia, and Trichoderma harzianum, as well as their impact on Meloidogyne javanica. The experiments were conducted under a completely randomized design with nine treatments and five replicates. The treatments included control, diclosulam, sulfentrazone, flumioxazine, imazethapyr, S-metolachlor, pyroxasulfone, imazethapyr + flumioxazine, and glyphosate. For B. firmus, colony forming units per milliliter (CFU mL-1) were counted; for fungi, the mycelial growth speed index (IVCM – mm day-1) and percentage of inhibition were measured; and for nematodes, the mortality rate was determined. Results showed that imazethapyr, S-metolachlor, and glyphosate were incompatible with B. firmus. Regarding P. lilacinum, P. chlamydosporia, and T. harzianum, these herbicides, along with sulfentrazone, exhibited the highest inhibition percentages. The most significant mortality rates of M. javanica were observed with imazethapyr, flumioxazine, and S-metolachlor. In conclusion, S-metolachlor, imazetapyr, glyphosate, and sulfentrazone were identified as the least compatible with the tested biological nematicides.