RELATIONS ENTRE INVERTEBRÉS ET ADVENTICES AU SEIN D’UN CHAMP DE MAÏS DANS LA BANLIEUE D’EL HARRACH (ALGER)

Abstract

This study investigated the relationships between invertebrates and weed plants in an experimental
corn plot in the El Harrach suburb during July-September 2022. Three sampling techniques were employed:
Barber pitfall traps, sweep nets, and Japanese umbrellas (beating tray) combined with handpicking. A
comprehensive inventory of invertebrate fauna on weeds was compiled. Among the 65 identified species
belonging to 47 families, 14 orders, and 6 classes, Insecta was the dominant class. Using the Japanese umbrella
technique, 8 invertebrate species were trapped on four host plant species: Xanthium strumarium, Malva
multiflora, Amaranthus sp., and Chenopodium album.