Authors :
Kansaye Laya; Sissoko Samba dit Mamoudou; Kansaye Aly; Diallo Seydou; Traoré Mahamoudou; Coulibaly Amadou Konotie
Volume/Issue :
Volume 7 - 2022, Issue 1 - January
Google Scholar :
http://bitly.ws/gu88
Scribd :
https://bit.ly/3BOJIBz
DOI :
https://doi.org/10.5281/zenodo.6258547
Abstract :
Helicoverpa armigera and Bemisia tabaci
remain major insect pests of tomato in horticultural
production areas of Mali; Producers prefer chemical
control methods for their management, which were not
often effective. The aim of this study was to improve
tomato production system by using plants’ extract. The
experimental design was randomized Fischer block with
three replications to compare performance of two plants’
extract formula with Rapax and Lambda Master 2.5EC.
Entomological observations and agronomic
measurements were made on marked plants in the
observation squares. The results reveal that the plant
extracts gave similar efficiencies to the commercialized
pesticides Lambda and rapax on Bemisia tabaci with
percentages of efficiencies varying between 58.33% and
72.62%. Against Helicoverpa. armigera rapax, the
formula 2 and 1 were poorly effective with less than 50%
while Lambda offered a percentage of effectiveness
ranging between 52 and 63%. The best yields were
recorded with Formula 1 and 2 treatment (36.72 T/ha;
32.40 T/ha), respectively and (30.56 T/ha) for rapax.
Results of variance have shown different significant
effects level of pesticides applied on tomato yield (p=0.001
with α=0.05). Therefore, this study recommends plants’
extract as alternative to chemical control of Bemisia
tabaci in tomato.
Keywords :
Plant’ extract; Helicoverpa armigera; Bemisia tabaci; Tomato, Katibougou
Helicoverpa armigera and Bemisia tabaci
remain major insect pests of tomato in horticultural
production areas of Mali; Producers prefer chemical
control methods for their management, which were not
often effective. The aim of this study was to improve
tomato production system by using plants’ extract. The
experimental design was randomized Fischer block with
three replications to compare performance of two plants’
extract formula with Rapax and Lambda Master 2.5EC.
Entomological observations and agronomic
measurements were made on marked plants in the
observation squares. The results reveal that the plant
extracts gave similar efficiencies to the commercialized
pesticides Lambda and rapax on Bemisia tabaci with
percentages of efficiencies varying between 58.33% and
72.62%. Against Helicoverpa. armigera rapax, the
formula 2 and 1 were poorly effective with less than 50%
while Lambda offered a percentage of effectiveness
ranging between 52 and 63%. The best yields were
recorded with Formula 1 and 2 treatment (36.72 T/ha;
32.40 T/ha), respectively and (30.56 T/ha) for rapax.
Results of variance have shown different significant
effects level of pesticides applied on tomato yield (p=0.001
with α=0.05). Therefore, this study recommends plants’
extract as alternative to chemical control of Bemisia
tabaci in tomato.
Keywords :
Plant’ extract; Helicoverpa armigera; Bemisia tabaci; Tomato, Katibougou
