This analytical tool based DNA array technology can provide quantitative identification for more than 150 different fungal and bacterial pathogen species, selected upon relevance for horticultural crops. Every microarray allows 8 determinations. Easy-to-use sampling kit for sample collection by non-specialist technicians is provided. Producers will take the samples themselves. Samples are shipped to a laboratory where pathogens are detected by using DNA microarray technology. Provided online tool to support the end-users (farmers, agronomists at cooperatives, consultants) in making decisions on pest management, establishing not only the sampling collection but also interpretation of the VegAlert data, permitting to the farmers to improve knowledge about phytopathogen prevalence and epidemiology.