Preliminary studies on chemical control of the flat acarus in pineapple plants

Abstract

Brazilian pineapple plantations have been attacked by the mite Dolichotetranichus floridanus (Banks 1900, Sayed 1938) (Acarina, Tenuipalpidae), that may reduce yield up to 16%. The following pesticides were tested with efficiency: monocrotophos, 0.08% a.i.; dimethoate, 0.15% a.i.; ethion, 0.1% a.i., and sumithoate, 0.1% a.i. No phytotoxicity effects were observed.