Fluctuation in species composition of predators (natural enemies) of Dien grapefruit tree insect pests in Bac Tu Liem, Hanoi

The article presents the first study of the most complete composition of natural enemies of Dien grapefruit tree. Fluctuation in specie component of predators (natural enemies) of Dien grapefruit tree insect pests differed over the months of this investigation with Coleoptera species being most prevalent with 7 species, accounting for 38.89% of the total species and Hymenoptera species numbering 5, accounting for 27.78%.