2. Articole

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    Hibernating arthropods’ complex in the plum tree orchard under the influence of green manures and nectariferous plants [Articol]
    (Editura USM, 2025) Iordosopol, Elena; Batco, Mihail; Eliseev Serghei; Fron, Arcadie; Filimon, Valeriu; Iordosopol, Valentina; Fron, Argentina; Muntean, Elena
    The work represents the highlighting of the arthropod complex, which populates and hibernates in the cardboard trap belts of the plum orchard influenced by green manures and nectariferous crops. This complex is composed of phytophagous, saprophagous, predators and parasites. In the trapping belts, polyphagous species of five families of spiders dominated, which constituted an average of 33.5% of the total individuals highlighted, and coccinellids (seven species) - an average of 6.5%. The parasitoid Scambus inanis achieved a degree of parasitism of moth larvae in average 29.4%. The highest percentage was recorded in the standard and experimental variants (46.0% and 35.3%) respectively.
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    Evaluation of Zeuzera pyrina infestation in walnut orchards and proposal of an alternative ecological control method [Articol]
    (Editura USM, 2025) Fron, Arcadie; Batco, Mihail
    The study assessed the impact of the xylophagous pest Zeuzera pyrina on walnut orchards in the central region of the Republic of Moldova, providing a detailed phenological and ecological profile. Monitoring of adult populations revealed an active flight period between May and August, correlated with temperatures above 25°C. Field data indicated an average infestation rate of 24.4% among the analyzed trees, with 58.1% of their branches being affected. The larvae produce galleries up to 50 cm in length, causing significant structural damage. An unusually high trophic plasticity was observed, with larvae also feeding on foliage under limiting conditions. Given the difficulty of applying contact insecticides, the study proposes an innovative ecological control method: detection of larvae using acoustic sensors and injection of a biologically active substance. This approach offers ecological, selective advantages and is compatible with modern technologies, representing a viable solution for sustainable pest management and the preservation of walnut orchard health.
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    Effect of some essential oils on Acanthoscelides obtectus Say (coleoptera: bruchidae) and Tetranychus urticae koch, (acari: tetranychidae) adults
    (CEP USM, 2024) Muntyan, Elena; Ciocarlan, Alexandru; Kulcitki, Veaceslav; Batco, Mihail; Aricu, Aculina; Lungu, Lidia; Blaja, Svetlana; Popescu, Violeta
    In search of new and safe pesticides, the toxicity of volatile oils obtained from three plant species against Acanthoscelides obtectus and Tetranychus urticae adults was studied. The essential oils of peppermint (Mentha piperita L), rosemary (Rosmarinus officinalis L) and coriander (Coriandrum sativum L) showed higher toxicity on mites than on weevils. The peppermint and rosemary essential oils demonstrated efficacy against A. obtectus in both fumigant and acute contact toxicity tests. The peppermint and coriander essential oils had the most pronounced fumigant toxicity to mites, with LT50 of 2.5 and 3.7 h, respectively, at 5 μg/cm³ air and are the most promising sources of natural substances with acaricidal properties.
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    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.