SciELO - Scientific Electronic Library Online

vol.21 issue2Threshold level as a criterion for beggartick control in soybeansAbsorption and translocation of the herbicide diuron by susceptible and tolerant species of crabgrass (Digitaria spp.) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Planta Daninha

Print version ISSN 0100-8358On-line version ISSN 1806-9681


GAZZIERO, D.L.P.; PRETE, C.E.C.  and  SUMIYA, M.. Management of Bidens subalternans resistant to acetolactate synthase inhibitor herbicides. Planta daninha [online]. 2003, vol.21, n.2, pp.283-291. ISSN 0100-8358.

The acreage with herbicide resistant weed populations has rapidly increased in Brazil in recent years. Inadequate herbicide recommendation is pointed as the main cause of this problem. This study aimed to evaluate Bidens subalternans control efficacy through herbicides with alternative mechanisms of action, consisting of a greenhouse and two field experiments, with corn and soybean crops. A Bidens subalternans population suspected to be resistant to ALS inhibitor herbicides, found in a commercial crop area, was used in the experiments. The results confirmed beggartick resistance to ALS inhibitor herbicides. Management alternatives found for this weed include herbicides recommended for soybean and corn with differentiated mechanism of action: protoporphyrinogen oxidase (PROTOX) inhibitors, mitotic disrupters and photosynthesis inhibitor herbicides, applied alone or in tank mixture.

Keywords : beggartick; weed resistance; mechanism of action; ALS; PROTOX.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License