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1 June 2009 Managing Oriental Fruit Fly (Diptera: Tephritidae), with Spinosad-Based Protein Bait Sprays and Sanitation in Papaya Orchards in Hawaii
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Abstract

The efficacy of GF-120 NF Naturalyte Fruit Fly Bait in combination with field sanitation was assessed as a control for female oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), in papaya (Carica papaya L.) orchards in Hawaii. Three different bait spray regimes were evaluated: every row (high use of the bait), every fifth row (moderate use), and every 10th row (low use). Orchard plots in which no bait was applied served as controls. For five of the seven biweekly periods that followed the first bait spray, trapping data revealed significantly fewer female B. dorsalis captured in plots subject to high and moderate bait use than in control plots. Differences in incidence of infestation among treatments were detected only by the third (12 wk after first spray) fruit sampling with significantly fewer infested one-fourth to bonehead ripe papaya fruit in plots subject to high and moderate bait use than in control plots. Parasitism rates by Fopius arisanus (Sonan) (Hymenoptera: Braconidae) were not negatively affected by bait application. Results indicate that foliar applications of GF-120 NF Naturalyte Fruit Fly Bait either to all rows (every other tree), or to every fifth row (every tree) in combination with good sanitation can effectively reduce infestation by B. dorsalis in papaya orchards in Hawaii.

© 2009 Entomological Society of America
Jaime C. Piñero, Ronald F. L. Mau, and Roger I. Vargas "Managing Oriental Fruit Fly (Diptera: Tephritidae), with Spinosad-Based Protein Bait Sprays and Sanitation in Papaya Orchards in Hawaii," Journal of Economic Entomology 102(3), 1123-1132, (1 June 2009). https://doi.org/10.1603/029.102.0334
Received: 29 July 2008; Accepted: 1 February 2009; Published: 1 June 2009
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