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. 2019 Nov 20;44(4):249–254. doi: 10.1584/jpestics.D19-030

Table 1. Control efficacy (the % inhibition of the fresh weight) and median efficient concentration (EC50) of RDP after mixed with water and 0.025, 0.05, 0.1, or 0.2% KAO® adjuvant A-134 against Digitaria sanguinalis in the greenhouse.

Conc. of A-134 (%)
Water 0.025 0.05 0.1 0.2
Dosage of Roundup® (g a.i./ha)
100 −0.9±3.5bb) 28.0±3.3a 26.3±2.9a 33.9±3.0a 42.9±3.4a
200 29.8±3.9c 36.8±3.6bc 42.8±3.1b 51.1±3.0b 62.6±5.8a
300 29.5±5.7c 50.6±4.9b 50.2±4.2b 67.8±2.5a 70.2±4.7a
400 71.7±1.2 69.9±1.9b 70.6±3.4b 70.4±1.7b 79.2±2.8a
500 79.4±2.2b 79.6±1.0b 83.2±1.6a 85.8±1.4a 83.7±1.7a
600 82.6±2.5a 83.5±2.9a 81.9±2.7a 83.3±2.7a 83.0±2.1a
ED50 (mg/L) 366.8a 233.5b 224.9bc 175.8c 175.8c
R.T.I.a) 100.0 157.1 163.1 208.7 260.5

a) R.T.I. was the abbreviation of the relative toxic index. b) Means followed by the same letter in each column were not significantly different (p<0.05, LSD test).