1. Waikano takawaenga, whakamahia i roto i te hanga o te whanariki waikano, azo azo, huruhuru me te fluorescent māngai whitening EB, etc. I roto i te ahumahi patu patu, whakamahia te reira rite rauemi mata o te insecticide phoxim.
2. Kei te whakamahia te nuinga mo te hanga waikawa mordant Blue R, sulfurized kōwhai parauri, me ētahi atu taea hoki te whakamahi i te reira rite huruhuru tae.I roto i te ahumahi whakapaipai, ka whakamahia hei hanga waikano makawe (hei tae ruruku).
3. Te whakatau i te hiriwa me te tine me te whakapumautanga o te koura.Koia te takawaenga o nga waikano diazo me nga waikano whanariki.