Control of the root -knot nematode meloi dogyne incognita by ivomec containing anexametabolite of Strepto myces aver mitilis
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TODERAŞ, Ion, RUSU, Ştefan, IURCU-STRĂISTARU, Elena, ERHAN, Dumitru, POIRAS, Nadejda, BIVOL, Alexei, SASANELLI, Nicola, RUSU, Vadim. Control of the root -knot nematode meloi dogyne incognita by ivomec containing anexametabolite of Strepto myces aver mitilis. In: Sustainable use, protection of animal world and forest management in the context of climate change, 12-13 octombrie 2016, Chișinău. Chișinău: Institutul de Zoologie, 2016, Ediția 9, pp. 176-177. ISBN 978-9975-3022-7-2. DOI: https://doi.org/10.53937/9789975302272.87
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Sustainable use, protection of animal world and forest management in the context of climate change
Ediția 9, 2016
Conferința "Sustainable use, protection of animal world and forest management in the context of climate change"
Chișinău, Moldova, 12-13 octombrie 2016

Control of the root -knot nematode meloi dogyne incognita by ivomec containing anexametabolite of Strepto myces aver mitilis

DOI: https://doi.org/10.53937/9789975302272.87

Pag. 176-177

Toderaş Ion1, Rusu Ştefan1, Iurcu-Străistaru Elena1, Erhan Dumitru1, Poiras Nadejda1, Bivol Alexei1, Sasanelli Nicola2, Rusu Vadim1
 
1 Institutul de Zoologie al AŞM,
2 Instituţul de Protecţie a Plantelor, Italia
 
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Disponibil în IBN: 14 noiembrie 2018



Teza

To find new control methods involving a reduction of applied synthetic molecules and a greater use of natural means of struggle, which could be applied to an organic and sustainable agriculture, recognized by the Europe Community since 1991 (EC Regulation 2092), the use of a veterinary antihelmintic product (IVOMEC), based on exametabolites produced by Streptomyces avermitilis, was tested in a pot experiment against the root-knot nematode Meloidogyne incognita. Tomato seedlings (cv. Rutgers) were transplanted in clay pots (V=1,000 ml) filled with a M. incognita infested soil (15 eggs and juveniles/mL soil). Pots were treated at transplant with 250 mL of different concentrations of aqueous solutions of IVOMEC (0.0625, 0.125, 0.25, 0.5, 1, 2 and 4 ml/l) and arranged on benches in a glasshouse at 25Ѓ}2 °C in a randomized block design with six replicates/treatment. Nematode-infested untreated soil (Control) and fenamiphos (Fen) treated soil were used as controls. During the experiment plants received all the necessary maintenance (irrigation, fertilization, etc.). Two months later, at the end of the experiment, plants were uprooted to estimate root gall index (RGI) according to a 0-10 scale (0 = no galls and 10 = root system completely deformed by the presence of large and numerous galls), eggs and juveniles/g root (Hussey and Barker’s method), soil nematode population density (Coolen’s method), total nematode population density and the nematode reproduction factor r expressed as ratio between final and initial population density (Pf/Pi) (Table 1). Data from the experiment were subjected to analysis of variance and means compared by Least Significant Difference’s Test. All statistical analysis were performed using Plot IT program. Lethal doses of ivermectin (as Ivomec formulation) were also calculated from pot experiment data to obtain different mortalities of the nematode (Table 2). Results clearly demonstrate the efficacy of ivermectin, applied at transplant at different rates (1, 2 and 4 ml/l), to decrease RGI, eggs and juveniles/g root and ml soil, total nematode population density and the reproduction factor, in comparison to the untreated control plants.  Aknowledgement: The research was undertaken within the framework of the bilateral project nr. 15.820.18.05.07/It between the National Research Council (CNR-Italy) and the Academy of Science of R. Moldova nr. 15.817.02.12F.