Combate químico de la arañita roja (Tetranychus urticae Koch) en fresa (Fragaria sp.)

Abstract

In the zone of Poas, Alajuela, Costa Rica, three miticides were evaluated in strawberries against the two-spotted spider mite Tetranychus urticae Koch, cyhexatin (plictran) 0.27 kg i.a./ha, propargite (Omite) 0.27 kg i.a./ha and thuringiensin (Dibeta) 0.15 kg i.a./ha. The population of the mite was evaluated four times during six weeks. There were no significant differences between the miticides. There was significant difference between the interaction: treatment*time.