| dc.description.abstract | Anthracnose known as "chicken eye", caused by the phytopathogenic fungus Colletotrichum
sp, which is widely distributed in production areas, is the most important disease, since the
pathogen not only attacks the fruit at any phenological stage but also the leaves, branches
and inflorescences, thus reducing the productive life of the tree by up to 50%. The aim of the
present investigation was to evaluate, under in vitro conditions, biofungicides and salicylic acid
against chemical products for the control of anthracnose in tree tomato. Samples were taken
from 12 farms distributed in the provinces of Azuay, Loja and Cañar. For the collection, the
fruits presented the characteristics of the disease as black lesions, accompanied by masses
of pink conidia. These samples were subjected to isolation and purification for inhibition tests.
The treatments evaluated were salicylic acid 0.4mM, Bacillus subtilis 5ml/L, Bacillus pumilus
5ml/L, pyraclostrobin 13.3% + epoxiconazole 5% 1ml/L, captan 1g/L, difenoconazole
0.75ml/L, and iprodione 1ml/L plus a control treatment. At the in vitro level, salicylic acid
inhibited mycelial growth of Colletotrichum sp. from samples collected in the provinces of
Azuay, Loja and Cañar, while the T5 treatment (captan) inhibited mycelial growth in samples
from Azuay and Loja in the localities of Don Julo, Urdaneta and Saraguro. | |
