The use of such an inhibitor is a new approach for
the control of water hyacinth population without
killing the plant. The active ingredient of KWH02
formulation have the advantages of being low toxic,
decomposed fast, and do not pose any risk of pollu-
tion to the environment. In addition, it is also of low
cast. Its water-soluble powder formulation, in par-
ticular, has a content of natural substances above 90%,
and it also includes an adjuvant of plant origin, which
has also been successfully used in a water-soluble
powder formulation of glyphosate during the last 10
years. Thus, the use of KWH02 has started recently
for the integrated management practice of water
hyacinth in Shanghai water bodies, and it gained
immediate success
next three years after this release, while no weed
control was observed and no weevils were found in
the other two sites (Ding et al., 2001).