SciELO - Scientific Electronic Library Online

vol.44 issue2Control of pineapple disease of sugarcane through in-furrow fungicide spray application on seedpiecesApplication of 1-methylcyclopropene and its influence in the process of astringency removal of 'Giombo' persimmon by using ethanol author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Ciência Rural

Print version ISSN 0103-8478


FRIZZAS, Marina Regina; SILVEIRA NETO, Sinval; OLIVEIRA, Charles Martins de  and  OMOTO, Celso. Genetically modified corn on fall armyworm and earwig populations under field conditions. Cienc. Rural [online]. 2014, vol.44, n.2, pp.203-209. ISSN 0103-8478.

The effects of corn MON810 on the Spodoptera frugiperda (J.E. Smith) and the earwig Doru luteipes (Scudder) were tested under field conditions in Brazil. Results from MON810 corn fields were compared with those fields of conventional corn with and without the application of insecticides in four harvests in the region of Barretos, SP. It was assessed the damage to S. frugiperda via direct counts of the number of fall armyworms and adults and nymphs of the predator D. luteipes on corn plants. The rate of S. frugiperda damage and the average numbers of larvae (large and small) were lower in the MON810 corn field relative to the control plot. There were no differences (P>0.05) between treatments regarding the predator abundance in corn plants. The second crop season ("safrinha") showed the greatest extent of S. frugiperda damage and the lowest average abundance of earwigs. MON810 was effective in controlling S. frugiperda and abundance of predator D. luteipes was similar in the three treatments under field conditions.

Keywords : Spodoptera frugiperda; MON810; Doru luteipes; transgenic plant.

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


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