FIPRONIL FOR DIAPREPES ABBREVIATUS (COLEOPTERA: CURCULIONIDAE) LARVAL CONTROL IN CONTAINER-GROWN CITRUS

NIGG, H. N.

Abstract


Fipronil, incorporated into potting soil at 25 ppm, controlled root weevils following three inoculations of 10 Diaprepes abbreviatus neonate larvae to sour orange seedlings over 90 days. Root weights were significantly less in seedlings with larvae and no fipronil compared to controls with larvae only and seedlings with larvae and fipronil. Control plants with larvae had only tap roots after 90 days. From these data, 25 ppm fipronil incorporated into plastic pots of potting soil would provide control of this insect.

Keywords


diaprepes abbreviatus; fipronil; pesticide; citrus; nursery quarantine; citrus root weevil

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283