Estado fitosanitario del Quishuar Incana en las estribaciones suroccidentales de los Ilinizas.

Abstract

The objective of the present investigation was to analyze the phytosanitary status of Buddleja incana, a native species from the Ecuadorian highlands. It took place in the Rasuyaku community, Toacaso parish, Cotopaxi province. The aforementioned species has been significantly affected by the presence of a plague according to the inhabitants of the commune, it had been in the area for some time. The research process began with the selection of two different locations within Toacaso, a parcel near the town center of the parish (T001) and a nursery within the Rasuyaku community (T002). Population of Buddleja Incana is scared, therefore a census was necessary and we gather some data from surveyed people: height, diameter to the height of chest, volume of fuste, diameter of glass, and basal area; on the other hand, a survey was carried out to the villagers to complement the information about the damage to Buddleja incana in the area. Samples of the insects in different stages were analyzed; as a result, it was obtained that Trichogonia costata, is the species causing the damage in the area to be a vector of diseases, mainly attacking the leaves in their adult state. In addition, the presence of a beneficial species Polynema sp., which functions as the biological controller of the pest. Once the information of the pest and the data of the variables of the individuals of Buddleja incana were ordered, a statistical analysis was carried out to evaluate the degree of affectation of the pest in the different places of study and to identify which of them was the most affected. The investigation ends with a practical, conservation proposal of Buddleja incana so that its application by the inhabitants of the area is feasible.