Volume 39, Issue 1, March 2023, Pages 517–524
KPAN Kpan Kouakou Gains1, YAO Kouadio Emile2, Moïse N’Guetta EHOUMAN3, Touré Mamadou4, TIHO Seydou5, and Ardjouma DEMBELE6
1 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
2 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
3 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
4 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
5 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
6 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The dry formulations of agrochemicals reduce the difficulties related to transport and exposure of users. Nevertheless, these products do not exclude drawbacks and their use requires a deeper knowledge of their toxicological and ecotoxicological effects. The purpose of this work was to study the acute toxicity and reproductive toxicity of glyphosate-based RAPID MAX 750 WG and TAKO-KELE 757 SG on the earthworm Eudrilus eugeniae, ubiquitous in tropical area. Lethality tests were conducted according to EPS1/RM/43, MA.500-VTL1.0, and OECD guideline 207 Methods. LC50 of RAPID MAX were (1687.56±50.53 mg of glyphosate (a.e.) /kg of soil (DW) for adult earthworms and 1416,99±53,06 mg of glyphosate (a.e.) /kg of soil (DW) for juvenile earthworms. LC50 of TAKO-KELE 757 SG were 2215.66±61.83 mg of glyphosate (a.e.) /kg of soil (DW) and 1658.62±38.72 mg of glyphosate (a.e.) /kg of soil (DW), respectively for adult and juvenile earthworms. Juvenile and adult earthworms were more sensitive to RAPID MAX 750 WG compared with TAKO-KELE 757 SG, as LC50 related to RAPID MAX 750 WG were lower than those of SG TAKO-KELE 757 SG. The acute toxicity (lethality) of both herbicides was more severe on juvenile earthworms.
Author Keywords: Glyphosate-based herbicide, Dry formulations, lethality, Eudrilus eugeniae, Earthworm.
KPAN Kpan Kouakou Gains1, YAO Kouadio Emile2, Moïse N’Guetta EHOUMAN3, Touré Mamadou4, TIHO Seydou5, and Ardjouma DEMBELE6
1 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
2 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
3 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
4 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d'Ivoire
5 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
6 Université Nangui Abrogoua, UFR-SN Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The dry formulations of agrochemicals reduce the difficulties related to transport and exposure of users. Nevertheless, these products do not exclude drawbacks and their use requires a deeper knowledge of their toxicological and ecotoxicological effects. The purpose of this work was to study the acute toxicity and reproductive toxicity of glyphosate-based RAPID MAX 750 WG and TAKO-KELE 757 SG on the earthworm Eudrilus eugeniae, ubiquitous in tropical area. Lethality tests were conducted according to EPS1/RM/43, MA.500-VTL1.0, and OECD guideline 207 Methods. LC50 of RAPID MAX were (1687.56±50.53 mg of glyphosate (a.e.) /kg of soil (DW) for adult earthworms and 1416,99±53,06 mg of glyphosate (a.e.) /kg of soil (DW) for juvenile earthworms. LC50 of TAKO-KELE 757 SG were 2215.66±61.83 mg of glyphosate (a.e.) /kg of soil (DW) and 1658.62±38.72 mg of glyphosate (a.e.) /kg of soil (DW), respectively for adult and juvenile earthworms. Juvenile and adult earthworms were more sensitive to RAPID MAX 750 WG compared with TAKO-KELE 757 SG, as LC50 related to RAPID MAX 750 WG were lower than those of SG TAKO-KELE 757 SG. The acute toxicity (lethality) of both herbicides was more severe on juvenile earthworms.
Author Keywords: Glyphosate-based herbicide, Dry formulations, lethality, Eudrilus eugeniae, Earthworm.
How to Cite this Article
KPAN Kpan Kouakou Gains, YAO Kouadio Emile, Moïse N’Guetta EHOUMAN, Touré Mamadou, TIHO Seydou, and Ardjouma DEMBELE, “Acute toxicity of two dry glyphosate-based herbicide formulations (Water Dispersible Granules and Solubles Granules) on the earthworm Eudrilus eugeniae, KINBERG, 1867 (Oligochaeta, Eudrilidae),” International Journal of Innovation and Applied Studies, vol. 39, no. 1, pp. 517–524, March 2023.
