Nematicidal Effects Of Some Plant Extracts On Egg Hatchability And Control Of Meloidogyne SPP. In Cowpea (Vigna Unguiculata (L.) WALP.)
ABSTRACT
The effects of cold and hot
aqueous extracts of 5 test plants (Luffa cylindrica, Momordica charantia,
Euphorbia hirta, Desmodium scorpiurus and Stachytarpheta cayennensis), wood
ash, a synthetic nematicide (karate-Lambdacyhalothrin) and a tap water treated
control were evaluated against the egg hatchability and control of Meloidogyne
spp in cowpea (Vigna unguiculata (L.) Walp) in the laboratory and green house.
The experiments were laid out in a completely randomized design (CRD) with 13
treatments; (Hot water extracts (HWE) and cold water extract (CWE) of L.
cylindrica; E. hirta, D. scorpiurus, S. cayennensis, wood ash, karate
(Lamdacylalothrin) and control) replicated 3 times. The result of the
laboratory experiment showed that the hot and cold water extracts of L.
cylindrica, and HWE of M. charantia, significantly (p < 0.05) inhibited the
hatching of eggs of the pathogen. Result obtained from the Green house
experiments indicated that HWE of E. hirta, CWE of S. cayennensis and CWE and
HWE of L. cylindrica significantly increased yield, (P< 0.05). The aqueous
extracts reduced the number of galls on the roots, nematode populations in the
root and soil samples. The results obtained with these extracts did not differ
significantly with the synthetic nematicide (Karate - /ambdacyhalothrin ). The
leaf extracts of the test plants could therefore be harnessed as source of
nematicides of plant origin to control th d · ·ffe ·t fplant parasitic nematodes
in cowpea field by local farmers.
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NZENWA, N (2023). Nematicidal Effects Of Some Plant Extracts On Egg Hatchability And Control Of Meloidogyne SPP. In Cowpea (Vigna Unguiculata (L.) WALP.). Repository.mouau.edu.ng: Retrieved Dec 21, 2024, from https://repository.mouau.edu.ng/work/view/nematicidal-effects-of-some-plant-extracts-on-egg-hatchability-and-control-of-meloidogyne-spp-in-cowpea-vigna-unguiculata-l-walp-7-2
NZENWA, NZENWA. "Nematicidal Effects Of Some Plant Extracts On Egg Hatchability And Control Of Meloidogyne SPP. In Cowpea (Vigna Unguiculata (L.) WALP.)" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 17 Jul. 2023, https://repository.mouau.edu.ng/work/view/nematicidal-effects-of-some-plant-extracts-on-egg-hatchability-and-control-of-meloidogyne-spp-in-cowpea-vigna-unguiculata-l-walp-7-2. Accessed 21 Dec. 2024.
NZENWA, NZENWA. "Nematicidal Effects Of Some Plant Extracts On Egg Hatchability And Control Of Meloidogyne SPP. In Cowpea (Vigna Unguiculata (L.) WALP.)". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 17 Jul. 2023. Web. 21 Dec. 2024. < https://repository.mouau.edu.ng/work/view/nematicidal-effects-of-some-plant-extracts-on-egg-hatchability-and-control-of-meloidogyne-spp-in-cowpea-vigna-unguiculata-l-walp-7-2 >.
NZENWA, NZENWA. "Nematicidal Effects Of Some Plant Extracts On Egg Hatchability And Control Of Meloidogyne SPP. In Cowpea (Vigna Unguiculata (L.) WALP.)" Repository.mouau.edu.ng (2023). Accessed 21 Dec. 2024. https://repository.mouau.edu.ng/work/view/nematicidal-effects-of-some-plant-extracts-on-egg-hatchability-and-control-of-meloidogyne-spp-in-cowpea-vigna-unguiculata-l-walp-7-2