Abstract:
This work focuses on the bibliographic study of the beneficial effect of essential oils in the
control against a pest of stored crops, the cowpea weevil Callosobrochus maculatus. Cowpea
V. unguiculata is an essential source of protein, especially in poor regions of the world, but is
at risk of being devastated by the cowpea weevil C. maculatus. For this and in order to protect
it biologically, we have studied research on the effect of essential oils represented by
eucalyptus oil, rosemary, olive oil, basil, lavender, thyme and clove on this pest, and we
concluded that some oils have a weak effect on the insect, such as basil and rosemary oil.
While eucalyptus oil completely prevents its reproduction, and others prevent its development
because it kills it, such as thyme, cloves and lavender. Finally, it is clear that essential oils can
play an important role in the control of cowpea weevil. However, the effect of the essential oil
remains dependent on the nature of the attack.
