Characterization of the subsystem pests of the thornless blackberry (Rubus Glaucus Benth.) in the department of Risaralda

Abstract

Objective: Using the participatory workshop model, the characterization of the non-thorn blackberry subsystem pests was carried out in the Department of Risaralda with farmers from the different associations. Methodology: Multivariate analysis was used, using the multiple correspondence technique for categorical variables to find producer clusters. Subsequently, a Chi-square test compared the results of each cluster and verified the significant differences that could exist within them. Results and conclusion: Based on the presence of insects for each phenological stage of the crop, five farmer clusters were found. Blackberry growers of the Department reported insects of the families Thripidae, Chrysomelidae, Melolonthidae and Aphididae, and of the species Atta sp., Hepialus sp., Monalonion sp., Prodiplosis sp.,, Eurhizococcus colombianus, and mollusks as slugs (Order: Pulmonata), as organisms present in the productive system. However, thrips and the stem borers (Hepialus sp.) were the most prevalent phytophagous insects. Likewise, a Chi-square test determined that, according to the farmer's perception, thrips are the most prevalent insects during all the phenological stages of the crop.