Management of Root Knot Nematode Meloidogyne incognita on Carrot

Borah Aparajita *

Department of Nematology, Assam Agricultural University, Jorhat- 785013, India.

Hazarika Keshab

Department of Nematology, Assam Agricultural University, Jorhat- 785013, India.

Mahanta Bornali

Department of Nematology, Assam Agricultural University, Jorhat- 785013, India.

Gogoi Debajani

Department of Nematology, Assam Agricultural University, Jorhat- 785013, India.

*Author to whom correspondence should be addressed.


Abstract

A pot experiment was conducted in the net house, Department of Nematology, during the rabi season to know the efficacy of  certain botanicals, Azadiracta indica, Azeratum conizoides, Tagetes erecta, Ricinus Communis, Lantana camara and Parthenium hysterophorus each @  1.0 and 1.5%(w/w) against Meloidogyne incognita on carrot. The result revealed that all the treatments were effective in increasing plant growth parameters with corresponding decreased in number of galls, eggmasses per root system and final nematode population in soil over control. The treatment with Azadiracta indica @1.5%(w/w) was most effective in increasing plant growth characters, reducing number of galls, eggmasses per root system and final nematode population in soil. A microplot experiment was conducted during rabi season to study the efficacy of Glomus fasciculatum, consortia (T. harzianum, T. viride and Pseudomonas fluorescenes) and vermicompost for the management of M.incognita on carrot. All the treatments were effective in increasing plant growth parameters and  yield with corresponding decreased in number of galls, eggmasses per root system and final nematode population in soil over control. The treatment with G. fasciculatum @ 300 spores/m2 + consortia @ 5ml/lt + vermicompost @ 1.25t/ha was found most effective in increasing plant growth parameters, yield of carrot and reducing number of galls and egg masses and final nematode population in soil.

Keywords: Botanicals, azadirachta indica, azeratum conizoides, tagetes erecta, ricinus Communis, lantana camara, parthenium hysterophorus, biocontrol agents, glomus fasciculatum, T. harzianum, T. viride, pseudomonas fluorescenes, vermicompost, M. incognita, carrot


How to Cite

Aparajita, Borah, Hazarika Keshab, Mahanta Bornali, and Gogoi Debajani. 2024. “Management of Root Knot Nematode Meloidogyne Incognita on Carrot”. Journal of Scientific Research and Reports 30 (5):1-8. https://doi.org/10.9734/jsrr/2024/v30i51915.