Browsing by Author "Iordosopol, Elena"

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THE DETERMINATION OF ATTRACTIVENESS IN TWO SEMIOCHEMICALS FOR BENEFICIAL HYMENOPTERA
(CEP USM, 2023) Eliseev, Serghei; Iordosopol, Elena
Several aspects (optimal distances placement, beneficial hymenopteran’ families composition, used compound volume per season) of two semiochemicals - phenylethanol and methyl salicylate’ attractiveness for beneficial hymenopterans were discussed.
EFICIENȚA UTILIZĂRII ATRACTANȚILOR NATURALI PENTRU A ATRAGE ȘI REȚINE ENTOMOFAGII ÎN PLANTAȚIILE CULTURILOR FRUCTIFERE SÂMBUROASE
(CEP USM, 2023) Batcu, Mihai; Iordosopol, Elena; Sumencova, Victoria
The prospects of using a natural attractants like methyl salicylate (MeSa) to attract and retain entomophages in the agrocenosis of a peach orchard during the growing season have been demonstrated. The presence of such substances increased their total number by 2.0 times compared with the control. Parasitic hymenoptera from the families Encyrtidae, Scelionidae, and Mymaridae were found to be attracted with its help by an average of 2 times, Trichogrammatidae – 4.0 times more compared to the control. The effectiveness of using MeSa increased if additional nutrition for entomophages was added to the agrocenosis by spraying trees with a solution of a protein-carbohydrate mixture, as well as the presence of nectar-bearing plants. The number of parasitic hymenoptera in the experimental area in this case increased by an average of 2,5-3 times. This was also accompanied by a reduction in damage by the plum codling moth Grafolita funebrana Tr., the eastern codling moth Grafolita molesta Busck and the fruit striped moth Anarsia lineatella Zeller.
IMPORTANȚA AFINITĂȚII CENOTICE A FAUNEI NECTARIFERILOR LA PRUN (II).
(CEP USM, 2023-02-13) Iordosopol, Elena; Batco, Mihail; Maevschii, Valentina
The work plays the affinity between the taxes noted at the Lobullaria maritima L. The highest affinity, on average, with the other taxis was made at 2 phytophagous taxes (flies - 8%, cruciferous fleas - 30%), 2 predators (Orius spp.- 7%, spiders - 10%) and one of parasites (fam. Pteromalidae).
Specia nouă de encyrtid parazit al păduchelui pufos (Pseudococcus sp.) la prun în Republica Moldova
(CEP USM, 2024-10-07) Iordosopol, Elena
The paper presents the results of the study of the regulatory complex of the mealybugs species of the genus Pseudococcus, which overwinters in the trap belts of the plum crop. It was established that in the adult stage it is parasitized by 5 species of parasites, among them 3 encyrtids, 1 megaspilid and 1 sygniphorid. The highest number of females parasitized by Stemmatosteres bochemicus was recorded in the belts influenced by the apple culture adjacent to the plum. The sex ratio (♀:♂) of the polyembryonic parasite population analyzed was 2:1.
Studiul legăturilor trofice și voracitatea prădătorului Amphiareus obscuriceps (Popp.) pe gazde alternative
(CEP USM, 2024) Iordosopol, Elena; Muntean, Elena; Batco, Mihai; Filimon, Valeriu; Maevschii, Valentina
The paper presents the results of the study of the natural and laboratory trophic links of the invasive predatory bug species Amphiareus obscuriceps found in the trap belts intended to study the winter reserve of plum crop pests. The predator was offered eggs of different stages of embryonic development of whiteflies Aleyrodes proletella, A. singularis, obtained from the plum plantation; Acanthoscelides obtectus and Galleria mellonella eggs obtained under laboratory conditions. It was determined that the predator can suck in one day on average 40.2 eggs of G. mellonella, 26.1 eggs in the late stage of embryogenesis and 11.7 eggs of one day of A. singularis and 9.3 eggs of A. obtectus.
UTILIZAREA NECTARIFERILOR ȘI ANALIZA COMPLEXULUI LOR FAUNISTIC LA PRUN (I).
(CEP USM, 2023-02-13) Iordosopol, Elena; Batco, Mihail; Fron, Arcadie
The work renders the synecological analysis of the faunistic complex accumulated in the Lobullaria maritima L. used in the late plum plantation and compared to Gypsofilla paniculata L. Nectariferous culture Lobullaria maritima accumulated 27% of predators, 23% of parasites, 3 times more and 50% of phytophagious of 1,3 less.