Abstract
ABSTRACT Frankliniella bispinosa (Morgan) is the key pest of southern highbush blueberries (Vaccinium corymbosum L. × V. darrowi Camp) in Florida. Thrips feeding and oviposition injury to developing flowers can result in fruit scarring that renders the fruit unmarketable. Previous studies have shown that flower thrips can disperse into cultivated crops from surrounding host plants. Therefore, the objectives of this study were to identify alternate hosts of F. bispinosa adjacent to blueberry plantings and to determine if F. bispinosa emigrates into blueberry plantings from these hosts. Plant surveys conducted in Apr of 2007 and from Nov 2007 until Mar 2008 revealed several reproductive hosts of F. bispinosa, including: Carolina geranium (Geranium carolinianum L.), white clover (Trifolium repens L.), and wild radish (Raphanus raphanistum L.). In a subsequent study, we monitored thrips population development in a blueberry planting and in an adjacent white clover field during early spring in 2009 and 2010. F...
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