Root-knot nematode (RKN) Meloidogyne ethiopica is quite unknown tropical plant parasitic species found in Slovenia and Europe in 2003 for the first time. The species is able to parasitize several ...economically important agricultural crops and therefore is very difficult to control. In our research, several approaches which can be used for M. ethiopica control were tested in pot experiment. The effects of some insecticides which are often used in the production in greenhouses, natural compounds as aqueous extract of Tagetes erecta, and the commercial natural product Azadirachtin (NeemAzal-T/S) extracted from the seeds of Indian Neem tree (Azadirachta indica) on the M. ethiopica reproduction were assessed. Test plants treatments with natural compounds reduced nematode multiplication by nearly 3 - 6 times compared to control while foliar application of Thiacloprid as well as Imidacloprid had no effect on nematode reproduction. The treatment with Volaton G granulates (Phoxim) for ground application resulted in no nematode multiplication. Additionally, M. ethiopica reproduction ability on the tomato cultivar "Venezia" which have a Mi gene for resistance to M. incognita was tested.
Meloidogyne ethiopica spada med ogorčice koreninskih šišk in je dokaj neznana, tropska rastlinsko parazitska vrsta, ki je bila prvič ugotovljena v Sloveniji in Evropi leta 2003. Vrsta lahko zajeda številne gospodarsko pomembne kmetijske rastline in jo zaradi tega zelo težko zatiramo. V naši raziskavi smo v lončnem poskusu ovrednotili različne prijeme, ki bi bili lahko uporabni za njeno zatiranje. Preučevali smo vpliv različnih substanc na reprodukcijo ogorčice M. ethiopica. Preučili smo vpliv nekaterih insekticidov, ki se jih pogosto uporablja v proizvodnji v rastlinjakih, ter nekaterih rastlinskih izvlečkov, kot sta vodni ekstrakt iz vrste Tagetes erecta in ekstrakt semen indijskega drevesa Azadirachta indica, ki vsebuje azadirahtin in je dostopen kot komercialni pripravek NeemAzal-T/S. Zalivanje testnih rastlin z rastlinskimi izvlečki je zmanjšalo reprodukcijo ogorčic za 3 do 6 krat v primerjavi s kontrolami, medtem ko foliarno tretiranje s tiaklopridom kot tudi z imidaklopridom na reprodukcijo ni imelo učinka. Prav nasprotno je učinkoval granulat za talno tretiranje Volaton G (foksim), kjer reprodukcije ogorčic nismo opazili. Preučili smo tudi reprodukcijski potencial ogorčice M. ethiopica pri paradižniku sorte "Venezia", ki vsebuje Mi gen za odpornost na ogorčice vrste M. incognita.
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