Age-stage, two-sex life table of Ephestai kuheniella (Lep: Pyrallidae) at different constant temperatures. (November 2020)

• Record Type: Journal Article
• Authors: Moghadamfar, Zeinab; Pakyari, Hajar; Amir-Maafi, Masood
• Is Part Of: Crop protection. Volume 137(2020)
• Publication Date: 2020-11
• Subjects: Temperature -- Mediterranean flour moth -- Development rate -- Life table parameters; Plants, Protection of -- Periodicals; 632.05
• DOI: 10.1016/j.cropro.2020.105200
• Languages: English
• ISSNs: 0261-2194

Abstract

Abstract: Ephestia kuehniella Zeller, is a major pest in stored products, and a host resurgence for rear natural enemies. Understanding the relation between temperature variations and the life table parameters of E . kuheniella is necessary to predicting its population dynamics and improve the efficiency of mass rearing through determining the optimal temperature. The influence of seven temperatures (15, 17.5, 20, 22.5, 25, 27.5 and 30 °C) on the development, reproduction and survival of E. kuehniella were tested under laboratory conditions. Development time of almost all immature stages in E . kuheniella was the shortest at temperatures of 30, while the longevity of male and female decreased with increasing temperatures. At 27.5 °C E . kuheniella females had the highest intrinsic rate of natural increase (0.07111 d −1 ), and finite rate of increase (1.077 d −1 ). All demographic parameters showed a parabolic relation with temperature. The consequences of the present research showed that the temperatures between 25 °C to 27 °C, were most favorable for the reproduction and development of E . kuheniella and that for mass rearing in this species and predict E . kuheniella population phenology and dynamics. Highlights: Ephestia kuehniella, is a major pest in stored products, and a host resurgence for rear natural enemies. Understanding the relation between temperature and the life table parameters of E . kuheniella is necessary to predicting its population dynamics and improve the efficiency of mass rearing. The consequences of the present research showed that the temperatures between 25°C to 27°C, were most favorable for the reproduction and development of E . kuheniella and that for mass rearing in this species and predict E . kuheniella population phenology and dynamics. The results of this research might be utilized to describe dynamics of population as a temperate function and could be estimated optimal temperature conditions for mass rearing of E . kuheniella populations.