Validation of ITKs practiced for management of Red Spider mite infecting Tea plantation

Fish extract at 0.25, 0.5 and 1%, Polygonum hydropiper at 2.5, 5 and 7.5% and azadirachtin-5% (Neemazal-F) were evaluated in field condition against the tea mite. The results showed that fish extract in combination with cow dung, cow urine and water when sprayed at 1% concentration significantly reduced red spider mite population, % of leaves and leaf area infested by the mite. P. hydropiper in combination with cow urine and water when sprayed at 7.5% concentration significantly reduced red spider mite population, % of leaves and leaf area infested by the mite. Among all the ITKs (Indigenous Technological Knowledge), fish extract at 1% caused higher reduction of infestation of red spider mite followed by P. hydropiper extract at 7.5%. Influence of both the treatments on the management of red spider mite was at par with that of commercial azadirachtin (5%).