Nematicidal Effect of Organic Extract Metal Complex on Meloidogyne incognita Infecting Groundnuts (Arachis hypogea)

The control of plant parasitic nematodes is constantly associated with environmental pollution problems which emanates from the ability of synthetic nematicides to bind strongly to different soil types owing to their hydrophilic nature. This research attempted to determine the nematicidal potential of copper, iron and zinc salts complexed with methanolic extract of on infecting groundnut plants on the field. Carbofuran, a synthetic nematicide was used as a reference standard. The experiment was a randomised complete block design which was conducted in two raining seasons (2017 & 2018). Two grams (2 g) of each of the metal salts were reacted with 300 ml of methanolic extract. Good nematicidal activity was displayed by crude extract copper complex (ENCT/CuSO ) close to the value obtained with carbofuran (CBFN), iron and zinc salt complexes (ENCT/FeSO and ENCT/ZnSO ) were also significantly (p