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Development of Sparganothis sulfureana (Lepidoptera: Tortricidae) on Cranberry Cultivars

Department of Entomology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, USA
Author to whom correspondence should be addressed.
Received: 22 November 2017 / Revised: 15 December 2017 / Accepted: 21 December 2017 / Published: 2 January 2018
(This article belongs to the Special Issue Insect-Plant Interactions)
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Sparganothis fruitworm (Sparganothis sulfureana Clemens) (Lepidoptera: Tortricidae) is a serious pest of cranberry (Vaccinium macrocarpon Aiton), a native North American fruit cultivated in northern regions of the United States and southeastern Canada. This study assessed antibiosis in several cranberry cultivars commonly grown in Wisconsin. Five cultivars previously shown to host different levels of populations of S. sulfureana in commercial cranberry were assessed in this study to evaluate the performance of S. sulfureana amongst these cultivars. We measured growth and time to developmental stages of newly emerged larvae to adulthood on selected cranberry cultivars in the laboratory. There was no difference in the rates of survival to pupation and to adult emergence among any of the cultivars tested. Mid-instar larvae that fed on the cultivar ‘Ben Lear’ were heavier than those feeding on ‘GH-1’, ‘Stevens’, or ‘HyRed’, and larvae that fed on ‘Mullica Queen’ were heavier than those feeding on ‘HyRed’. However, there were no significant differences in pupal weights or in the number of days from neonate to adult emergence among varieties. Therefore, this study did not provide evidence of antibiosis among the cultivars tested, and found that larval weight was not correlated with other measurements of performance. View Full-Text
Keywords: Antibiosis; Sparganothis fruitworm; Vaccinium macrocarpon; host plant resistance Antibiosis; Sparganothis fruitworm; Vaccinium macrocarpon; host plant resistance

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McMahan, E.E.; Guédot, C. Development of Sparganothis sulfureana (Lepidoptera: Tortricidae) on Cranberry Cultivars. Insects 2018, 9, 4.

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