You are here: Home
/ Publication Information
Title: Seasonal Changes in Adult Longevity and Pupal Weight of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) with Implications for Interpreting Pheromone Trap Catch
Author: Asaro, Christopher; Berisford, C. Wayne;
Source: Environ. Entomol. 30(6): 999-1005 (2001)
Publication Series: Miscellaneous Publication
Description: Pheromone trap catches of the Nantucket pine tip moth, Rhyacionia frustrana (Corn-stock), are often much higher during the first generation as compared with later generations, regardless of population density or damage levels. One hypothesis proposed to explain this phenomenon is reduced adult longevity during summer due to high temperatures. In this study, adult male and female moths placed in containers in the field during each generation showed significantly shorter life spans during the summer months compared with spring. Life spans were inversely related to the average number of daily degree-days accumulated during the investigations. In the laboratory, adult male moths under varying temperatures and constant humidity showed life spans similar tothose observed in the field. Adult male moths that were provided with a sugar water solution in the laboratory did not have significantly longer life spans than those without. Male and female pupal weights showed little variation between generations and sites, and no observable changes in pupal weights occurred during the overwintering period. Some differences in female pupal weight between generations were found at some sites but these differences were not correlated with differences in adult life span. Temperature appeared to be the predominant factor affecting adult moth life span between generations, although other environmental and physiological factors may be important. An understanding of the lower trap catches for R. frustrana during summer may have important implications for using pheromone traps to predict population levels.
Keywords: Rhyacionia frustrana, adult longevity, pupal weight, pheromone trap catch
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Asaro, Christopher; Berisford, C. Wayne 2001. Seasonal Changes in Adult Longevity and Pupal Weight of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) with Implications for Interpreting Pheromone Trap Catch. Environ. Entomol. 30(6): 999-1005 (2001)
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility