Abstract

RODRIGUEZ LEDESMA, Yandy et al. EFFECTIVENESS OF MARMOLINA AS AN INERT MINERAL IN THE CONTROL OF Hypothenemus hampei (FERRARI) (COLEOPTERA: CURCULIONIDAE) DURING STORAGE OF COFFEE SEEDS. rev.udcaactual.divulg.cient. [online]. 2015, vol.18, n.2, pp.351-358. ISSN 0123-4226.

In order to assess the effectiveness of marmolina as inert dust in the control of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae) during the period of seed storage, its anti-insect effect, borer mortality, seed percentage of weight loss and germination was determined. The design was completely randomized 4 treatments and 3 doses. Treatments were evaluated in dose of 0.46g; 0.81g; 1.74g and a control (without dust) with three replicates each one. An analysis of variance was performed with the statistical package Statgraphics version 5.0. To calculate mortality, all data were transformed into arcsin (x/ 100)^0.5. Marmolina sticks to the insect cuticle due to its high specific surface 14m².g-¹ and works by killing the insect by physical drying process due to the presence of various chemical. According to the results a 100% mortality at 7 days after the treatment was obtained with the three doses. Marmolina applied to seeds for the control of the coffee berry borer does not affect the germination of seeds stored for a period of 10 months.

Keywords : Coffee; germination; mineral powder; marmolina; stored seeds.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )