Studies on the control of Kummerovia striata (Thunb.) Schindler in Zoysia turf

Abstract

The study was conducted to establish the method of chemical control of Kummerovia striata (Thunb.) Schindler, which is one of the most persistent and troublesome weeds of turf.
Mecoprop, triclopyr, dicamba and atrazine are applied to soil before the weed has not emerged, and complete kill effect was obtaind.
The weed was readily controlled by triclopyr, dicamba and [Catrazine+mecoprop], when they were applied in the seedling stage before its tight foliages have formed. But in its advanced stage, it was controlled by triclopyr and dicamba.
The herbicidal effectiveness of triclopyr was stable regardless of spray volumes or the SAA concentrations in the spray. However when triclopyr was used in higher dosage, it was phytotoxic to turf.
[atrazine + mecoprop] indicated the high selectivity and effectiveness to various kinds of weeds.