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1 June 2009 Dogwood Borer (Lepidoptera: Sesiidae) Abundance and Seasonal Flight Activity in Apple Orchards, Urban Landscapes, and Woodlands in Five Eastern States
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Abstract
The relative abundance and seasonal flight activity of dogwood borer, Synanthedon scitula Harris (Lepidoptera: Sesiidae), was measured using weekly records from traps baited with its sex pheromone and deployed in apple orchards, urban landscapes, and native woodland sites in New York, West Virginia, Virginia, North Carolina, and Tennessee in 2005 and 2006. The mean total number of moths captured per site in apple orchards was 3,146 ± 644 and 3095 ± 584 SE in 2005 and 2006, respectively, exceeding captures at urban sites by 16 and 13 times and at woodland sites by 210 and 206 times in 2005 and 2006, respectively. Mean total captures at urban sites exceeded those in woodland habitats by 13 and 16 times in 2005 and 2006, respectively. The mean duration (wk) of the flight period did not differ significantly between apple orchards (22.6 ± 0.6 SE) and urban sites (20.3 ± 1.2 SE). The onset of flight was somewhat later in New York (around early June) than further south (around early to mid-May), but moth captures continued into October in all states. Captures in apple orchards and at urban sites with higher populations were essentially continuous throughout the flight period, with substantial weekly fluctuations, and tended to show a bimodal pattern with peaks from late May through mid-July and from late August through mid-September. Captures at woodland sites tended to occur predominantly from mid-May through about mid-June and were very sporadic thereafter.
© 2009 Entomological Society of America
J. C. Bergh, T. C. Leskey, J. F. Walgenbach, W. E. Klingeman, D. P. Kain and A. Zhang "Dogwood Borer (Lepidoptera: Sesiidae) Abundance and Seasonal Flight Activity in Apple Orchards, Urban Landscapes, and Woodlands in Five Eastern States," Environmental Entomology 38(3), (1 June 2009). https://doi.org/10.1603/022.038.0304
Received: 2 May 2008; Accepted: 1 January 2009; Published: 1 June 2009
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