ABSTRACT
In Ghana, information on plants antagonistic to nematodes is scanty
compelling farmers to rely on synthetic chemicals which are effective but pose
an environmental threat. This work aimed to evaluate the effect of aqueous
leaf extracts of Khaya senegalensis, Tectona grandis, Azadirachta indica,
Vernonia amygdalina and Bryophyllum pinnatum plants for the control of
Meloidogyne spp. In evaluating the botanicals, a laboratory, field and pot
experiments were conducted. The first experiment evaluated the effect of
extracts from fresh leaves of K. senegalensis, T. grandis, A. indica, V.
amygdalina and B. pinnatum on eggs hatchability and nematicidal activity
against second stage juveniles of Meloidogyne spp in the laboratory. Results
show that lower egg hatch and higher juvenile mortality occurred in the
extracts and was concentration dependent. A. indica at 25% gave the lowest
mean egg hatch of 2.33 and highest juvenile mortality of 65.16. The second
experiment was carried out to evaluate the effect of aqueous leaf extracts of K.
senegalensis, T. grandis, A. indica, V. amygdalina and B. pinnatum applied to
soil as drench on tomato plants. Although the botanicals were effective in the
laboratory and pot experiments, they were moderately effective in the field..
The third experiment was carried out to evaluate the application of leaf
extracts of K. senegalensis, T. grandis, A. indica, V. amygdalina and B.
pinnatum as mulch and soil admixture on growth and severity of nematode
infection on tomato plants. The results indicated that K. senegalensis, T.
grandis, A. indica, V. amygdalina and B. pinnatum applied as soil-admixtures
were more effective in controlling Meloidogyne than applied as mulch.
SAYDEE, V (2021). AN EVALUATION OF THE NEMATICIDAL POTENTIAL OF FIVE BOTANICALS IN THE MANAGEMENT OF MELOIDOGYNE SPP ON TOMATO. Afribary. Retrieved from https://tracking.afribary.com/works/an-evaluation-of-the-nematicidal-potential-of-five-botanicals-in-the-management-of-meloidogyne-spp-on-tomato
SAYDEE, VESTER "AN EVALUATION OF THE NEMATICIDAL POTENTIAL OF FIVE BOTANICALS IN THE MANAGEMENT OF MELOIDOGYNE SPP ON TOMATO" Afribary. Afribary, 01 Apr. 2021, https://tracking.afribary.com/works/an-evaluation-of-the-nematicidal-potential-of-five-botanicals-in-the-management-of-meloidogyne-spp-on-tomato. Accessed 24 Nov. 2024.
SAYDEE, VESTER . "AN EVALUATION OF THE NEMATICIDAL POTENTIAL OF FIVE BOTANICALS IN THE MANAGEMENT OF MELOIDOGYNE SPP ON TOMATO". Afribary, Afribary, 01 Apr. 2021. Web. 24 Nov. 2024. < https://tracking.afribary.com/works/an-evaluation-of-the-nematicidal-potential-of-five-botanicals-in-the-management-of-meloidogyne-spp-on-tomato >.
SAYDEE, VESTER . "AN EVALUATION OF THE NEMATICIDAL POTENTIAL OF FIVE BOTANICALS IN THE MANAGEMENT OF MELOIDOGYNE SPP ON TOMATO" Afribary (2021). Accessed November 24, 2024. https://tracking.afribary.com/works/an-evaluation-of-the-nematicidal-potential-of-five-botanicals-in-the-management-of-meloidogyne-spp-on-tomato