Evaluation of original Roundup® effects on Biomphalaria glabrata (Say, 1818)

The objective of this work is to evaluate the action original Roundup® on snail Biomphalaria glabrata infected and not by Schistosoma mansoni observing its mortality reproductive biology. Snails were submitted for 30 days aqueous solutions Roundup at concentrations 0.1, 0.09, 0.08, 0.07, 0.06, 0.05, 0.04, 0.03, 0.02, 0.018, 0.016, 0.014, 0.012 0.01 (%) determine LC50. To analyze activity B. glabrata, against pesticide, four groups formed: exposed pesticide; (control); exposed; exposed(control). LC50 (0.012% solution Roundup) caused most up 95% 24, 48 72 h during experimental period (30 days), lost effect totally after 27 days. non-infected snails was 30.3 ± 20.5 eggs in 2.7 1.2 egg masses, there a reduction 51% average number hatched (11.5 7.5) comparison control group (23.9 18.0) weeks (p = 0.003). results indicate that lethal concentration (LC50) 0.012% has significant significantly diminished fertility with group.