Imazapyr herbicide efficacy on floating macrophyte control and ecotoxicology for non-target organisms

Planta Daninha

GARLICH, N.¹  SHIOGIRI, N.S.¹  CRUZ, C.¹  Universidade Estadual Paulista, Jaboticabal, BR¹  SILVA, A.F.¹  PITELLI, R.A.¹  Centro Universitário da Fundação Educacional de Barretos, Barretos, BR¹ 

关键词: acute toxicology;    biomarkers;    aquatic plants management;   

DOI  :  10.1590/S0100-83582015000100012

学科分类：农业科学（综合）

来源: Sociedade Brasileira da Ciencia das Plantas Daninhas (S B C P D) / Brazilian Society of Herb Science

【 摘 要 】

the aims of this study were to determine imazapyr efficacy for floating macrophyte control and ecotoxicology for non-target organisms. For the floating macrophyte control efficacy tests were used the doses of 0,5; 1,0; 2,0; 2,5; 3,0; 3,5 and 4,0 L ha-1 and a control with 10 replicates. The acute toxicology for non-target organisms was estimated by lethal concentration 50% (LC50 and EC50). The floating macrophyte control efficacy was over 90%. Imazapyr was classified as moderately toxic for the following biomarkers: L. minor, H. eques, B. rerio, P. caudimaculatus, P. canaliculata, and P. mesopotamicus and lightly toxic for A. caroliniana. Thus, imazapyr herbicide is a tool with great potential to be used on floating macrophyte control (E. crassipes, P. stratiotes e S. molesta) in Brazil and this practice can be evaluated by the use of application biomarkers.

【 授权许可】

Unknown