MANEJO DE CAPIM-PÉ-DE-GALINHA (Eleusine indica (L.) Gaertn.)

Abstract

The goosegrass belongs to the Poaceae family, with an annual cycle, it has a C4 photosynthetic cycle and reproduction only seeds. Due to its cosmopolitan character, it becomes prone to resistance selection, approximately 37 cases of resistance of these plants to herbicides have been reported worldwide. In Brazil, in 2017 biotypes with multiple resistance to two mechanisms of action were identified: ACCase inhibitors and EPSPS inhibitors. For the efficient control of weeds, studies on their biology and control alternatives are necessary, with this, the objective of the present study was to characterize the goosegrass, as well as to present alternatives for the management of this weed. Methods of physical, mechanical, cultural, biological and chemical weed control should be used if it is possible to control goosegrass, since the use of only chemical control induces cases of weed resistance. Due to the cases of herbicide-resistant goosegrass, it is necessary to rotate chemical molecules, for application of pre-emergence products, the works emphasize the efficiency of S-metalochlor, as well as diclosulan, trifloxylsulfuron sodium , chlomuron-ethyl, trifluralin, pendimethalin, clomazone and sulfentrazone. For the control of these plants in post emergence, some of the products that can be used are clethodim, haloxyfop, glufosinate of ammonium, clomazone and fluazifop-P-butyl.