1. KWH02 effect on individual branches of wa-
ter hyacinth
The experiments included six treatments and
control tested in concrete pools (50 cm×50 cm×50 cm
volume). Each pool contained only one weed indi-
vidual. The treatments were as follows: treament 1
(T1)―KWH02 at the rate of 1.5 kg/ha, treatments 2
to 6 (T2~T6) are single chemicals or other formula-
tions at the same rate dosage comparatively with
KWH02. The data was collected every day in 29 d
after spraying.