ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.)
The pesticidal value of a plant is a function of the phytochemicals it contains. This study evaluated the effectiveness of lemon grass (Cymbopogon citratus) phytochemicals on M. incognita infection on tomatoes in in vitro and greenhouse experiments. Results showed that the commercial synthetic nemat...
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College of Agriculture
2025-06-01
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| Series: | Mesopotamia Journal of Agriculture |
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| Online Access: | https://magrj.uomosul.edu.iq/article_188590_77d7d7f8396d93092545bb1b738d0b82.pdf |
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| author | Vincent Ogwudire Chinedu Ewelike Chiristopher Echereobia Ephraim Nwokeji Chinekwu Cookey Edward Nze Queen Umelo Kelechi Nnadi Stephen Ejiogu Blesson Ibeabuchi |
| author_facet | Vincent Ogwudire Chinedu Ewelike Chiristopher Echereobia Ephraim Nwokeji Chinekwu Cookey Edward Nze Queen Umelo Kelechi Nnadi Stephen Ejiogu Blesson Ibeabuchi |
| author_sort | Vincent Ogwudire |
| collection | DOAJ |
| description | The pesticidal value of a plant is a function of the phytochemicals it contains. This study evaluated the effectiveness of lemon grass (Cymbopogon citratus) phytochemicals on M. incognita infection on tomatoes in in vitro and greenhouse experiments. Results showed that the commercial synthetic nematicide (Furadan), alkaloids, tannins, flavonoids, and saponins all indicated the highest nematode mortality at the highest concentration after 72-hour exposure in vitro. However, at the lowest concentration of 10 mg/ml, furadan and alkaloids gave the same results statistically, achieving the highest nematode mortality of 100%. Phytochemicals under screenhouse conditions reduced the number of galls and the root-gall index on tomatoes while enhancing plant growth parameters. Furadan and alkaloids were, however, not significantly (P<0.05) different in causing the least reduction recorded in the number of galls and root-gall index on tomato plants inoculated with 1000 infective juveniles (J2s). The impact of Furadan showed a significant decrease in the number of galls from 32.00 to 0.00 and for alkaloids, 34.00 to 0.80 at 5 ml/pot, respectively. The root-gall index was also reduced from the severely galled index of 4.00 in control plants to a “no infection status” of 0.00 on applying Furadan and alkaloids at 5 ml, respectively. Plant heights, number of leaves, shoot weights, and root weight were highest when furadan and alkaloids were applied compared to other phytochemicals and the untreated control. This study, therefore, suggests that C. citratus-based phytochemicals possess strong nematicidal effects and can be used effectively in an integrated disease management program against root-knot nematodes. |
| format | Article |
| id | doaj-art-a5e2444b24284d73a30ea62d2599c78e |
| institution | Kabale University |
| issn | 1815-316X 2224-9796 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | College of Agriculture |
| record_format | Article |
| series | Mesopotamia Journal of Agriculture |
| spelling | doaj-art-a5e2444b24284d73a30ea62d2599c78e2025-08-20T03:31:47ZengCollege of AgricultureMesopotamia Journal of Agriculture1815-316X2224-97962025-06-01532314810.33899/mja.2025.156246.1519188590ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.)Vincent Ogwudire0Chinedu Ewelike1Chiristopher Echereobia2Ephraim Nwokeji3Chinekwu Cookey4Edward Nze5Queen Umelo6Kelechi Nnadi7Stephen Ejiogu8Blesson Ibeabuchi9Federal University of Technology, SAAT, CST, P.M.B. 1526, Owerri, Imo State. NigeriaDepartment of Microbiology, Federal University of Technology, P.M.B.1526, Owerri. NigeriaDepartment of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaDepartment of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaDepartment of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaDepartment of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaDepartment of Crop Production, Faculty of Agriculture, University of Agriculture and environmental sciences, Umuagwo, Imo State.Department of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, Nigeria.Department of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaDepartment of Crop Science and Technology, Federal University of Technology, P.M.B.1526, Owerri, NigeriaThe pesticidal value of a plant is a function of the phytochemicals it contains. This study evaluated the effectiveness of lemon grass (Cymbopogon citratus) phytochemicals on M. incognita infection on tomatoes in in vitro and greenhouse experiments. Results showed that the commercial synthetic nematicide (Furadan), alkaloids, tannins, flavonoids, and saponins all indicated the highest nematode mortality at the highest concentration after 72-hour exposure in vitro. However, at the lowest concentration of 10 mg/ml, furadan and alkaloids gave the same results statistically, achieving the highest nematode mortality of 100%. Phytochemicals under screenhouse conditions reduced the number of galls and the root-gall index on tomatoes while enhancing plant growth parameters. Furadan and alkaloids were, however, not significantly (P<0.05) different in causing the least reduction recorded in the number of galls and root-gall index on tomato plants inoculated with 1000 infective juveniles (J2s). The impact of Furadan showed a significant decrease in the number of galls from 32.00 to 0.00 and for alkaloids, 34.00 to 0.80 at 5 ml/pot, respectively. The root-gall index was also reduced from the severely galled index of 4.00 in control plants to a “no infection status” of 0.00 on applying Furadan and alkaloids at 5 ml, respectively. Plant heights, number of leaves, shoot weights, and root weight were highest when furadan and alkaloids were applied compared to other phytochemicals and the untreated control. This study, therefore, suggests that C. citratus-based phytochemicals possess strong nematicidal effects and can be used effectively in an integrated disease management program against root-knot nematodes.https://magrj.uomosul.edu.iq/article_188590_77d7d7f8396d93092545bb1b738d0b82.pdfcymbopogan cytratusmeloidogyne incognitatomatophytochemicalsroot-knot nematode |
| spellingShingle | Vincent Ogwudire Chinedu Ewelike Chiristopher Echereobia Ephraim Nwokeji Chinekwu Cookey Edward Nze Queen Umelo Kelechi Nnadi Stephen Ejiogu Blesson Ibeabuchi ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) Mesopotamia Journal of Agriculture cymbopogan cytratus meloidogyne incognita tomato phytochemicals root-knot nematode |
| title | ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) |
| title_full | ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) |
| title_fullStr | ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) |
| title_full_unstemmed | ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) |
| title_short | ASSESSMENT OF FOUR LEMON GRASS PHYTOCHEMICALS AS ALTERNATIVE NEMATICIDE FOR ROOT-GALL NEMATODE CONTROL ON TOMATO (Lycopersicon esculentum L.) |
| title_sort | assessment of four lemon grass phytochemicals as alternative nematicide for root gall nematode control on tomato lycopersicon esculentum l |
| topic | cymbopogan cytratus meloidogyne incognita tomato phytochemicals root-knot nematode |
| url | https://magrj.uomosul.edu.iq/article_188590_77d7d7f8396d93092545bb1b738d0b82.pdf |
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