The invention relates to a process for the prophylaxis of fungal infections, especially oomycetes, and bacterial infections in useful and ornamental plants. The fields of employment are the cultivation of vineyards, fruits, vegetables and ornamental plants. The invention aims to develop a process for the prophylaxis of fungal infections, in particular oomycetes, and bacterial infections, in particular by false downy mildew (peronosporales) and pseudomonas syringae in viniculture and vegetable cultivation. surprisingly, it has been found that the selected proteases alone and in combination with complementary enzymes effectively prevent plant infection by certain phytopathogenic organisms. Infection does not occur in protected plants. Thus, propagation of the pathogen in the plant stem is prevented. The process according to the invention is distinguished by the fact that an aqueous solution of a protease, prepared alone or in combination with ß-glucanases and / or chitinases, reacted with stabilizing, adhesion and cross-linking agents, is applied to plants. by conventional processes and several times in the vegetation period, preferably prior to infection-prone time periods.a invenção se refere a um processo para a profilaxia de infecções por fungos, especialmente por oomicetos, e infecções bacterianas em plantas úteis e plantas ornamentais. os campos de emprego são a cultura de vinhas, frutas, legumes e plantas ornamentais. a invenção tem como objetivo desenvolver um processo para a profilaxia de infecções por fungos, em particular por oomicetos, e infecções bacterianas, em particular pelo falso míldio (peronosporales) e pseudomonas syringae na vinicultura e na cultura de legumes. surpreendentemente, verificou-se que as proteases selecionadas, sozinhas e em combinação com enzimas complementares, previnem eficazmente a infecção de plantas por determinados organismos fitopatogênicos. a infecção não ocorre nas plantas protegidas. com isso uma propagação do patógeno no c
