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Cebos molusquicidas y molusquicidas líquidos para el control de Deroceras reticulatum (Pulmonata: Stylomatophora), plaga en el cultivo de colza

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Author(s): GARAVANO, M.E. | MANETTI, P.L. | LÓPEZ, A.N. | CLEMENTE, N.L. | SALVIO, C. | FABERI, A.J

Journal: RIA : Revista de Investigaciones Agropecuarias
ISSN 0325-8718

Volume: 39;
Issue: 1;
Start page: 60;
Date: 2013;
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Keywords: gray slug | chemical control | molluscicide | no tillage.

ABSTRACT
Oil seed rape (Brassica napus) under No Tillage (NT) represents an alternative in the current crop rotationsystems. Deroceras reticulatum “gray slug” is a one of the present pest in this crop under NT. The aim of thisstudy was to evaluate combined action bait and liquid Metaldehyde as an alternative strategy control of the specie. Laboratory and fields traits were carried out with the following treatments: control treatment without chemicals, chemical co tro (4 kg ha-1 of Metaldehyde 4 %), 3, 4 and 5 kg ha-1 combined action bait (Carbaryl8 % y Metaldehyde 4 %) and 1, 2 and 3 l ha-1 of liquid formulations (20 % Metaldehyde). The number of dead individuals of D. reticulatum and the number of damaged and undamaged plants were evaluated. In the laboratory,up to 3 days after application (DAA) it was observed higher control rates at all doses of liquid formulationthan all solids treatment. In both, solid and liquid treatments did not have doses effect. The proportion of damaged plants did not differ between treatments. In the field, at 2, 8 and 14 DAA liquid treatments showed lower control rates compared with the Metaldehyde baits and combined action bait. Both treatments solids and liquids were no effect of dose. The proportion of damaged plants was higher than that observed in laboratoryconditions. There were not observed differences in the proportion of damaged plants under chemical treatments and in the control with slugs. The application of liquid formulations may be carrying out close to crops sowing, while baits should be applied before sowing.
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