The work present investigation was carried out during the months of June to September of 1996, With the objective of identifying the pathogenic and economic damage of the main illnesses that caused the marchitez and death of plants in cylantro (Coriandrum sativum), in horticultura! fields of the Sector Quilloallpa, district and county of you Lick. The studied treatments were: 1 am Accustomed to without disinfecting or witness (SSD); Seed without disinfecting (SesD); 1 am Accustomed to disinfected with formol to 2% (SDF); Seed disinfected with Thiram to the 3 o/oo (DST); Seed disinfected with Tolclofos (SeDTO); Pulverizations with copper chloride to the 4 oloo (PO); which were subjected to a design of complete blocks at random. The isolated and identified mushrooms were: Fusarium spp; Rhizoctonia sp; Pythium sp; Colletotrichum sp; it would Altemate sp. In the patogenicidad test it was pos...