Diagnosis of anthracnose, witch's broom, powdery mildew and sooty mold in mango cultivation in San Sebastián nopalera, OAX

Abstract

The aim of this study was to identify phytopathogenic fungi that reduce mango production in San Sebastian nopalera. The study was carried out in the experimental area of the Instituto Tecnológico del valle de etla, nodo San Sebastián nopalera in august 2016. Mango plants with symptoms of anthracnose, witches' broom, powdery mildew and fumagine were selected for disease diagnosis. Sick leaves were randomly collected to confirm the diseases through the preparation of the culture medium, washing and inoculation of the plant material and identification of the phytopathogenic fungi. The field and laboratory study confirmed the presence of anthracnose (colletotrichum gloeosporioides), witches’ broom (fusarium oxysporum), powdery mildew (oidium mangiferae) and fumagine (capnodium sp.) In mangoplants. The climatic conditions in San Sebastián nopalera present average temperaturas of 26°c and relative humidity of 80 to 90%, which favors the development of the identified phytopathogenicfungi. This work provides information to evelop phytosanitary programs for mango cultivation in the community of San Sebastian nopalera.