Borreria (Spermacoce) latifolia

In response, it was said that the weed was resistant to Paraquat. It was also said that it succumbs well to glyphosate (Round-up). The ideal time of spraying is when the weeds are about 15 cm tall, and obviously before flowering. Glyphosate needs to be applied on a sunny day when there is at least half a day of sunshine assured after the spray. Adding nitrogen, 0.5 to 1% on volume of spray, in the form of urea or ammonium sulphate, into the spray tank, enhances the faster uptake of glyphosate.