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1 October 2013 Distribution of Rice Water Weevil (Coleoptera: Curculionidae) Adult Damage in Florida Rice Fields
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The rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), is the most widely distributed and destructive insect pest of rice, Oryza sativa L., in the United States. The objective of this research was to determine the distribution of rice water weevil adult damage in Florida rice fields. Adult leaf scars were used to determine if rice water weevil adult damage was more dense on field edges than farther into fields. Samples were taken from a road midpoint of each field and 10, 50, 100, and 150 m from the road on a transect toward the field center. Leaf scar samples also were taken along 2 transects running parallel to a levee in each field. One transect was 10 m from the levee and the other transect 50 m from the levee. Transect and levee data were remarkably consistent in showing that rice water weevil leaf scars had a uniform distribution into Florida rice fields. Our data suggest that rice water weevil damage may be overlooked by Florida rice growers because it is uniform and not aggregated on field edges where it would become more conspicuous.

Ron Cherry, Bouazza Sakr, Luigi Trotta, and Gregg Nuessly "Distribution of Rice Water Weevil (Coleoptera: Curculionidae) Adult Damage in Florida Rice Fields," Journal of Entomological Science 48(4), 265-269, (1 October 2013).
Received: 22 October 2012; Accepted: 1 January 2013; Published: 1 October 2013

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