Research of helminthological parasitical impact at tomato culture (Solanum Lycopersicum L.) in Republic of Moldova

The results estimate the phytosanitary helmintological control achieved qt the tomato growth from apen and protected areas, in eluctdating the parasttic impact with the establishment of the invasive nematafauna, with the deterrnination af the degree of ffiction, the structure, the frequency and argumentation of protection system The ìrwestigations were carried out in 22 localities, 32 tomato sectors from yorious areas specialtzed ìn the cultivation of vegetables. As a result of the nematolo§cal researches was established the structure af the parasitic nematode camplexes with: 32 species included tn Sfamiliesfrom 2 orders classffied according to the specialization of the trophic spectrum in 5 groups, with the predaminance of species in the sector of the Center area (32 spectes), compared to the North area (21 species), classified by trophic specialization. It was found the values with variations frorn B to 459/0, caused fu invasive associations, with spectfic parasitic effects of the geneles: Meloidogne, Pratylenchus, Paratylenchws, Helicotylenchus, Rotylenchus, Ditylenchus. The pltytosanitary monitoring realized, estimate the application and the contrtbution in elucidating the degree of nematologieal damage for the forecasting and argumentqtion of the protection measares predestined to the vegetable agrocenoses