"Pest in first" and "natural infestation" methods in the control of tetranychus urticae koch with phytoseiulus persimilis athias-henriot on glasshouse cucumbers - Markkula, Martti; Tiittanen, Katri (Agricultural Research Centre, 1976)
Keywords: Ta; biologinen torjunta; vihannespunkki; Tetranychus urticae; tuhoeläimet; menetelmä; tutkimus; biological control; Tetranychus urticae; Phytoseiulus persimilis; "pest in first" method; "natural infestation" method; glasshouse cucumber; costs; effectiveness