In the result of phytosanitary research carried out in apple production orchards, of classic-intensive-superintensive type, capitalized in the production associations from various areas: North, Center, South, South-East, 12 districts, 6 production associations, 8 private households, on areas of over 800 ha, where over 200 soil and organ samples affected by helminthology and virosis were collected, subsequently analyzed, with the establishment of parasitic and virotic impact, numerical density values and disease level, virus diversity. Was estab lished an abundance of numerical numbers from 20 to 120 individuals per 100 g/soil and young roots collected from classical orchards, compared to intensive and super-intensive orchards. The numerical density of nematodes was, practically at the same level in intensive-superintensive orchards, including breeding nurseries, from 10 to 70 invasive individuals per 100 g / soil, by 20-30% lower, compared to orchards of classic type. In the orchards from the South and SouthEastareas were characterized with numerical density values from 15 individuals to 120 individuals/100cm3 soil, depending on age, variety, environmental conditions. At fruit species, including apple culture, there was a significant diversity of 15 species of invasive nematodes and vectors of 7 pathogenic viruses that cause more than 5 viral diseases, such as: types of ring mosaic, motley, nerve chlorosis, short knotting of shoots, twisting and embossing of leaves. The detected nematode complexes belong to the orders Tylenchida and Dorylaimida with trophic, endo-ectoparasitic and vector specialization adapted in the fruit orchards soils, reproduction nurseries of planting material, cultivated in the conditions of the Republic of Moldova