Y a-t-il \'elimination d'Eupelmus orientalis Crawford par Eupelmus vuilleti Crawford (Hymenoptera : Eupelmidae) des syst\`emes de stockage du ni\'eb\'e (Vigna unguiculata Walp) ?
Auguste Ndoutoume-Ndong, Danielle Rojas-Rousse (IRBII)

TL;DR
This study investigates the interactions among hymenopteran parasitoids in cowpea seed storage, revealing that Eupelmus vuilleti exhibits ovicide and larvicide behaviors affecting other species, but not E. orientalis, influencing biological control potential.
Contribution
It provides new insights into the behavioral interactions and population dynamics of Eupelmus species in stored cowpea seeds, highlighting implications for biological pest control.
Findings
E. orientalis is initially the most abundant species in storage.
E. vuilleti's population increases as E. orientalis disappears.
E. vuilleti exhibits ovicide and larvicide behaviors against D. basalis, but not E. orientalis.
Abstract
Ni\'eb\'e is a food leguminous plant cultivated in tropical Africa for its seeds rich in proteins. The main problem setted by its production is the conservation of harvests. In the fields as in the stocks, the seeds are destroyed by pests (bruchids). These bruchids are always associated with several entomophagous species of hymenoptera. Four entomophagous species were listed : an egg parasitoid (U lariophaga Stephan), and three solitary larval and pupal ectoparasitoids (D. Basalis Rondoni, Pteromalidae; E. vuilleti Crawford and E. orientalis Crawford, Eupelmidae). The survey of the populations shows that at the beginning of storage, E orientalis is the most abundant specie (72 %) whereas E. vuilleti and D. Basalis respectively represent 12 % and 16 % of the hymenoptera. During storage, the E orientalis population decreases gradually and it disappears completely in less than two months…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
