Contributions to the knowledge of the coleopteran entomofauna in the apple fruit tree orchards

Abstract

The observations have been made in a fruit tree orchards owned by the Society S.C. Loturi Service SRL Deleşti,Vaslui country, Romania. The several varieties of apple are grown within this company: Golden delicious, Idared, Wagner, etc.The Barber soil traps were used to collect the biological material, and they functioned continuously from May to September or even October in 2017six traps were used for each experimental variant.The experimental variants were set up, depending on the existing vegetal carpet . The samples were harvested at intervals of 7-14 days when we changed the fixing fluid, were filled in, or, if it was necessary it was replaced. The collected species were cleansed from all plant debris, other impurities and then separately selected coleopteran species, which by means of the determiners boocks were identified. The structure, dynamics and abundance of coleopteran species were then determined according to each experimental variant. The species of thecoleopters, more frequently collected were: Dermestes laniarius Ill. Harpalus calceatus, Harpalus distinguendus, Amara eurynota, Phyllotreta nemorum, Opatrum sabulosum andOmias rotundus, etc.