Maize plants are subjected to the intervention of a complex of parasitic agents, which include over 15 species of harmful insects and 22 species of invasive nematodes as key objects of agro economic importance that annually cause serious damage to plants from the first vulnerable stages: germination seedlings with 5 7 adult l eaves. We estimated as challenging the invasive parasitic associations of lepidoptera caterpillars of the family Noctuidae, species Agrotis segetum, Heliothis armigera and family Pyralidae, species Ostrinia nubilalis , associated with endo ectoparasitic nematode complexes of the order Tylenchida genurile: Pratylenchus sp., Paratylenchus sp., Heterodera sp. Biological efficiency values of 90.0 93.7% were obtained in maize plantations, by spraying twice, in the germination formation of adult leaves phases , the preparations Coragen 20 SC (0.2 L/ha) and Curaj 20 SC (0.15 L/ha and 0.2 L/ha) as new remedies with complex antiparasitic action. The estimated frequency and intensity of the attack was 10 45%, being influenced by the environmental factors, and the b iological efficiency of the new remedies on the tested plots is high, at the level of the standard variant, as compared by variants and doses.