Biological efficacy of the extracts of basilic in the attractiveness of fruit flies responsible for mango damage in Burkina Faso

Attractivité des extraits de plantes vis-à-vis des mouches de fruits

Abstract

Mango production in Burkina Faso is confronted in recent years with fruit fly attacks, which are responsible
for enormous damage. The objective of this study is to contribute to fruit fly management through the
development of control tools accessible to mango growers. To this end, the effectiveness of three extracts
formulated from basilic (Ocimum basilicum L.) in the attractiveness of fruit flies were tested in mango
orchards located in the province of Kénédougou. The experimental design includes 10 treatments in four
replicates. The treatments were three doses of each extract (crushed fresh leaves, leaf powder and essential
oil) and the methyl eugenol served as reference control. The high dose of essential oil proved to be more effective in the attractiveness of Bactrocera dorsalis Hendel (187.25 ± 252.38 adults/trap/week) and
showed the highest persistence (27.7 ± 3.5 days). Regarding the species Cosyra cosyra Walker the high
dose of crushed fresh leaves was more effective in its attractiveness (34.39 ± 54.63 adults/trap/week).
Further experimentation is necessary to determine the optimal doses of attractiveness of the extracts that
proved their efficacy during the current study.