Attractans and trap types for evaluation of plantain weevils (Coleoptera: Curculionidae) in small farm producers in Cundinamarca, Colombia Conference Paper uri icon

Resumen

  • Plantain production in Cundinamarca, Colombia, is characterized by association with coffee crops, in areas under 5 ha, which are little technified, and are affected by the weevil complex Cosmopolites sordidus (Germar, 1824), Metamasius hemipterus (Linnaeus, 1758) and M. hebetatus (Gyllenhal, 1838) (Coleoptera: Curculionidae). The aim of this work was to evaluate management  alternatives for this weevil complex. Two trials were carried out in Viotá and Chaguaní (Cundinamarca). In the first trial (Viotá), the attraction effectiveness of Cosmolure® and Metalure® pheromones using sandwich type traps was evaluated in a
    randomized complete block design (RCB) with 6 treatments and 5 blocks by weekly evaluations during 3 months. In the second trial (Chaguaní) attractants were compared: pheromones vs fermentation (mature plantain) and gallon traps vs sandwich traps, in a RCB, 6 treatments and 5 blocks during 6 weeks. The average number of individuals captured in treatment was calculated and an ANOVA was performed with a significance level of 0.1 and Tukey multiple comparison tests were conducted for the treatments. In the first trial, the results showed that there was greater capture of C. sordidus (13.8 individuals, p=0.0680) and M. hebetatus (2.3 individuals, p=0.0234) when insecticide was used in combination with Cosmolure® and Metalure®, respectively, and higher compared to the control with average catch of one individual per trap. The second trial, showed differences between treatments for C. sordidus with the sandwich + Cosmolure® (2.13 individuals, p = 0.0120), for M. hemipterus with fermentation + Metalure® (3.1 individuals, p = <0.0001) and for M. hebetatus with gallon trap + Metalure®(1,03 individuals, p = 0.0020). In both
    tests, the sandwich trap had a higher catch of the weevil complex and is proposed as a control alternative to be used by small plantain producers due to its low investment of time and money.

Fecha de publicación

  • 2018