ABSTRACT
Pot trial experiment was conducted at the College of Crop
and Soil Sciences, Michael Okpara University of Agriculture, Umudike, Abia
State, Nigeria between the months of June and October, 2014. The study was
designed to determine; the nematicidal effect of leaf powders of Aspi/ía
africana (African marigold), Termina/ia catapa (Indian almond) and Cyrnbopogon
citratus ( lemon grass) against nematode infestation on tomato; appropriate
time of application of plant materials and to compare the effect of the plant
products with synthetic nematicide (carbofuran). The experiment consisted of
six treatments with six replicates, arranged in a Completely Randomized Design
(CRD). Parameters recorded were number of leaves, plant height, number of
fruits, weight of fruits, fresh shoot weight, number of galls in roots, number
of nematode eggs in root and number of nematodes larvae in soil. Result
obtained showed that treatments at day 1 and day 15 after inoculation with
nematode eggs significantly (P ~ 0.05) r€ Juced the population of nematode
(Meloidogyne incognita) in some parameters, than 30 days after inoculation,
although in some cases, there were no significant differences bet veen treated
and untreated experiments. Thus, different powders significantly increased
tomato yield when compared with untreated (riematode alone). However treatments
wth africana appeared to be most effective, as it recorded least number of
galls irrespecth of periods of application (0.00, 4.00), eggs in the roots
(0.00, 150) and nematode larvae in soil (5.00, 50.00). Plant treated with
nematicide ranked second with (5.00,13.5c', number of galls, (350, 950) eggs in
roots and (0.00, 50) nematode larvae in soil. Aspiia af.ana performed better
than catapa and citratus leaf powders, suggesting that they couid bc
effectively used Lne iinmenC oi wot-inot nematodes in tomato as alternat'e to
chem al nematiic "f v' c t: "; - .ct hazard and pollution problems
EKPENYONG, P (2021). Nematicidal Potential Of Three Plant Materials Against Root-Knot Nematode (Meloidogyne Incognita) Infestation On To Mato (Solanum Lycopersicon). Repository.mouau.edu.ng: Retrieved Sep 07, 2024, from https://repository.mouau.edu.ng/work/view/nematicidal-potential-of-three-plant-materials-against-root-knot-nematode-meloidogyne-incognita-infestation-on-to-mato-solanum-lycopersicon-7-2
PETER, EKPENYONG. "Nematicidal Potential Of Three Plant Materials Against Root-Knot Nematode (Meloidogyne Incognita) Infestation On To Mato (Solanum Lycopersicon)" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 09 Nov. 2021, https://repository.mouau.edu.ng/work/view/nematicidal-potential-of-three-plant-materials-against-root-knot-nematode-meloidogyne-incognita-infestation-on-to-mato-solanum-lycopersicon-7-2. Accessed 07 Sep. 2024.
PETER, EKPENYONG. "Nematicidal Potential Of Three Plant Materials Against Root-Knot Nematode (Meloidogyne Incognita) Infestation On To Mato (Solanum Lycopersicon)". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 09 Nov. 2021. Web. 07 Sep. 2024. < https://repository.mouau.edu.ng/work/view/nematicidal-potential-of-three-plant-materials-against-root-knot-nematode-meloidogyne-incognita-infestation-on-to-mato-solanum-lycopersicon-7-2 >.
PETER, EKPENYONG. "Nematicidal Potential Of Three Plant Materials Against Root-Knot Nematode (Meloidogyne Incognita) Infestation On To Mato (Solanum Lycopersicon)" Repository.mouau.edu.ng (2021). Accessed 07 Sep. 2024. https://repository.mouau.edu.ng/work/view/nematicidal-potential-of-three-plant-materials-against-root-knot-nematode-meloidogyne-incognita-infestation-on-to-mato-solanum-lycopersicon-7-2