Evaluation de l’activité antifongique de l’extrait méthanoïque des feuilles et tiges de l’Atriplex halimus vis-à-vis de Colletotrichum sp.,agent de l’anthracnose sur tomate.

Abstract

Tomato anthrace caused by Colletotrichum sp., is a fungal disease that can cause considerable damage to tomato plants. If not taken care of quickly and effectively, it can reduce the yield of the tomato crop. However, there are general drawbacks associated with chemical treatments, including the risk of toxicity to the environment and to humans. This work aims to enhance the bio fungicidal effect of Atriplex halimus. To meet this objective, we evaluated "in vitro", the antifungal activity of the methanoic extract of the leaves and stems of this plant on the mycelial growth and sporulation of Colletotrichum sp. The results obtained show an inversely proportional relationship between the doses of the methanoic extract and the inhibition rates of the two biological sequences of the fungus, with inhibition rates exceeding 80% for high doses.