Abstract

SALVIO, C; MANETTI, P. L; CLEMENTE, N. L  and  LOPEZ, A. N. Effects of metaldehyde and carbaryl based baits on the survival and reproduction of Folsomia candida. Agriscientia [online]. 2018, vol.35, n.1, pp.43-50. ISSN 1668-298X.

The aim of this work was to determine the lethal and sublethal effects of metaldehyde and/or carbaryl on Folsomia candida. Three bioassays were performed under a completely randomized design with 4 replicates and under controlled conditions (20 ± 2 °C y 14L: 10O). The experimental unit consisted of a container (9.3 cm diameter and 6.4 cm high), filled with 60 g of soil mixed with different doses of bait, in each 10 adult individuals (of 2 to 3 mm of lenght) were placed. The treatments were: 0; 40; 80; 120; 160 and 200 g active ingredient (a.i.) ha^-1 of metaldehyde, 0; 80; 160; 240; 320 and 400 g a.i. ha^-1 of carbaryl and 0; 40+80; 80+160; 120+240; 160+320 and 200+400 g a.i. ha^-1 metaldehyde+carbaryl. With metaldehyde neither the proportion of live individuals nor the number of offspring differed among treatments at 7, 14, 21 and 28 days after application (DAA) (p> 0.05). The highest doses of carbaryl and metaldehyde+carbaryl showed a decrease in the proportion of live individuals and in the number of offspring at 28 DAA (p< 0.05). Baits containing carbaryl caused adult mortality and fewer offspring in F Candida.

Keywords : Collembolans; Molluscicide; Crustacicide; Ecotoxicological bioassays.

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