WEED CONTROL AND SELECTIVITY OF HERBICIDE IN GARLIC

Abstract

A field experiment was conducted in Rio Grande, RS, during 1987/88 growing season aiming to evaluate the effect of herbicides on weeds that affect garlic plants as well as its phytotoxity on the cultivar Quitéria. The experimental design was a randomized block with four replications and the treatments were pre and post emergence herbicides. The dominant weeds on the área were Digitaria sanguinalis (L.) Scop., Eleusine indica (L.) Gaertn and Spergula arvensis L. The results indicated tha the most efficient treatments were the following: Linuron + Fluazifop-P-butil, Linuron + Sethoxydin e Oxifluorfen + Alloxydim-sodium which resulted in greater commercial bulbs yields. It was phytotoxity effect to Bentazon, which was appiied in postemergence, that reduced the bulbs yield.

phytotoxity; weeds control; garlic yield