نوع مقاله : مقاله پژوهشی
نویسندگان
1 استاد گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه تبریز ،تبریز، ایران
2 دانش‌آموخته کارشناسی ارشد بیماری‌شناسی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
3 دانشیار، گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
4 استاد، گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Foliage and bud nematode Aphelenchoides besseyi cause strawberry summer dwarf disease and infects many plant hosts including rice, onion, garlic, sweet corn, sweet potato and soybean, as well as a number of bulbous ornamental plants. Management approaches of plant parasitic nematodes are mostly based on crop rotation, resistant cultivars, nematode free propagating materials and nematicidal compounds. Due to the adverse and hazardous effects of chemical nematicides for humans and the environment, it is necessary to search and use the safe alternative methods. In this study, the effect of nematicidal activities of essential oils of fennel seed (Foeniculum vulgare), (Pimpinella anisum), (Carum copticum) and dried plants of thyme (Thymus vulgaris) and mint (Mentha spicata), volatile metabolites of Pochonia chlamydospora and metam sodium as a nematicide and positive control against the nematode were studied under laboratory conditions. For this purpose, the nematode was propagated on PDA culture medium containing the fungus Alternaria alternata. The bioassays were arranged in four replications and with nine treatments using 15 days reared nematodes and data of nematode mortality were recorded after 24- and 48-hours intervals. After 24 hours, the LC50 values for fennel, anise, zenian and thyme essential oils were determined as 1846, 1512, 3715 and 17550, respectively and 17.425 for metam sodium. Also, the LC90 values were calculated as 2466, 2872, 5586, and 32990, respectively and 114/33 for metam sodium.
کلیدواژه‌ها [English]
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