Farmers in rural areas practiced cocktailed herbicides to control weed in their farms. Cocktailed herbicides Paranox 13 with shampoo had been tested to identify the effectiveness in controlling weed. Herbicides Paranox 13 was mixed with shampoo and applied on weed. Seven treatments were prepared based on the ratio of Paranox 13 and shampoo for positive control, five ratios (12m1 Paranox 13: 0m1 shampoo, 10m1 Paranox 13: 2m1 shampoo, 8m1 Paranox 13: 4m1 shampoo, 6m1 Paranox 13: 6m1 shampoo, 4m1 Paranox 13: 8m1 shampoo, 2m1 Paranox 13: 10m1 shampoo) and negative control. The weeds became died and turned brown for treatments contained Paranox 13. No effect for negative control treatment. There is no significance difference between negative and positive control (p>0.05). Cocktailed herbicides Paranox 13 with shampoo did not show effective result in controlling weed. For the conclusion there is no effectiveness of cocktailed herbicides in controlling weed.