Pupation Sites of Scirtothrips citri (Thysanoptera: Thripidae) and Potential Management through Increasing Mortality of Instars on the Ground

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Abstract:

Release of laboratory-reared citrus thrips, Scirtothrips citri (Moulton), onto branches of citrus trees, and capture of falling larvae on sticky sheets, suggested a significant proportion of pupation on the ground. Field experiments were performed with individual trees caged in order to exclude the possibility of random migration of S. citri from tree to tree. Preventing adult emergence from the ground by covering the ground beneath the canopy with sticky plastic sheets resulted in estimates that between 49 and 90% of S. citri adults emerge from the ground. Emerging adults from soil samples collected in the field and from an artificial sand and leaf-litter substrate in the laboratory indicated that most S. citri emerge from leaf-litter or a shallow soil depth. Results have implications for development of future management strategies for S. citri.

Document Type: Research Article

Publication date: December 1, 1996

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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