Puma, S.H1; Matai, E.P2;
Channya K. F3 & Indapful , H.A4
1Gombe State Teachers Service
Commission, Ministry of Education, Gombe State
2Department of Horticultural Technology,
Federal College of HorticultureDadin Kowa, Gombe State
3Department of Plant Science, Modibo Adama
University of TechnologyYola Adamawa State
4Department of Science Laboratory
Technology, Federal Polytechnic Mubi Adamawa State
ABSTRACT
A
survey was conducted to find and control Fusarium
wilt of tomato at Labundo, Gyariyo and Battare all located in Girei Local
Government Area of Adamawa State. The treatments combinations consisted of three levels each of jatropha
leaf extracts, neem leaf extracts and tamarind ash assigned in s Completely
Randomized Design (CRD), replicated four times. Data collected was analysed
using Statistical tool for Applied Sciences (SAS) and means that were
significantly different were separated using the Least Significant Difference
(LSD). Surveyed result of naturally infected tomato plant identified Fusarium oxysporum in all the surveyed
locations as the wilt pathogen. The highest percentage incidence of tomato wilt
was recorded in Gyariyo with 85.07% followed by Labundo with 26.69% and Battare
with 26.06%. The result also showed significant difference (P<0.05)
with respect to disease severity. Gyariyo had the highest severity of 88 %,
Labundo 36 % and Battare having the least severity of 34 %. Results of in-vitro control trials indicated
that there were significant differences (P < 0.05) among the
treatments with respect to the control of the Fusarium oxysporum. Jatropha leaf extracts produced the inhibition
zone of 37.50%; neem gave 32.53% while ash had 24.86% inhibition. Concentration
levels of 2.0 ml, 1.5 ml, and 1.0ml/20 ml of PDA were also significantly
different, with increased efficacy as concentration of treatment increases. For
in-vivo trial, the treatments were significantly different (P < 0.05)
from the control, reducing the disease of tomato seedlings. Concentration of
3.0 ml/kg, 5.0 ml/kg and 10 ml/kg were also significantly different at P <
0.05, with increased efficacy as concentration of treatment increases but no
significant different between 5.0 ml/kg and 10 ml/kg. From the in-vitro
findings and screen house study, jatropha leaf extracts gave the best control
of the pathogen and produced the highest seedling growth followed by neem leaf
extracts and ash whereas increase in concentration increases the control of the
pathogen, therefore farmers are advised to use jatropha leaf extracts at
5.0ml/kg.
Keywords: Fusarium wilt, jatropha, neem, ash, extract, concentration, in-vivo and in-vitro.