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Revista de Protección Vegetal
Print version ISSN 1010-2752On-line version ISSN 2224-4697
Abstract
MARRERO ARTABE, Leonel et al. Efficacy of Diatomaceous Earth for the control of Sitophilus zeamais Motschulsky in a metallic silo. Rev. Protección Veg. [online]. 2020, vol.35, n.1, e06. Epub Apr 03, 2020. ISSN 1010-2752.
The efficacy of Diatomaceous Earth (Protect IT ®) was tested for the control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) in a metallic silo of Matanzas province, Cuba. A random design was arranged and three groups were evaluated: Protect IT (90 % of diatomaceous earth), a positive control (Actellic CE 50) and an untreated control. The diatomaceous earth and Actellic were evaluated at 9.0 kg PC. ton - 1 and 12.0 ml. ton - 1, respectively. The dose of Diatomaceous Earth tested showed insecticide activity with 100 % mortality percentage during the first 60 days, without statistical differences with the Actellic insecticide. After three months, the insect mortality was 60 %, with statistical differences with the chemical insecticide. The results suggest the potentialities of Diatomaceous Earth (Protect IT ®) as an alternative for management of S. zeamais in metallic silos and for reducing the use of chemicals in corn grain storage.
Keywords : stored grains; corm; pest; Diatomaceous Earth; Zea mays.