filling Lido system 2008-06-24T11:28:48Z Administrator IDOMAL:0000679 IDOMAL:0000679 In areas of extensive water covered with vegetation where drainage is impractical, the area can be deepened to the extent that plants cannot grow. If the banks of the impoundment are also steepened and stabilised, the introduction of larvivorous fish can reduce mosquito production dramatically. idomal_namespace