
Home

Arthropods, 2017, 6(3): 78-85
[XML] [EndNote] [RefManager] [BibTex] [

Full PDF (330K)] [Comment/Review Article]

Article

Development - temperature relationship and temperature dependent parameters of German cockroach, Blattella germanica L.

YiTian Xu, SongBin Chen, Yan Yang, WenJun Zhang
School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; International Academy of Ecology and Environmental Sciences, Hong Kong

Received 16 November 2015;Accepted 26 January 2016;Published 1 September 2017
IAEES

Abstract
German cockroach, Blattella germanica L., is one of the most health pests around the world. Development-temperature relationship and temperature-dependent parameters of B. germanica were determined in present study. The experiment was conducted in the incubators with five constant air temperatures, 23, 28, 31, 36, and 40 Ўж. The photoperiod of 16 h light / 8 h dark and the relative humidity of 74%-76% were fixed for all incubators. Three replicates were set for each temperature. Based on linear regression equations, the estimated starting temperature for development of 1st to 5th instar nymphs of B. germanica is 14.26ЎА3.157, 13.70ЎА2.284, 14.59ЎА3.575, 16.58ЎА2.398, and 18.47ЎА1.442 Ўж, respectively. The estimated effective accumulated temperature of 1st to 5th instar nymphs is 99.18ЎА19.68, 97.01ЎА13.47, 92.06ЎА21.17, 80.26ЎА9.784, and 64.06ЎА9.784 d Ўж (day degrees), respectively. B. germanica had the highest survivorship and hatching rate, and the least instars for eclosion and hatching time, around 31 Ўж, which is the optimum temperature range for development and survival of B. germanica. B. germanica could not survive at 40 Ўж. Even at 36 Ўж, all eclosed adults had vestigial wings and could not normally mate and reproduce.

Keywords Blattella germanica;effective accumulated temperature;starting temperature for development;developmental rate;life table;survivorship.

International Academy of Ecology and Environmental Sciences. E-mail: office@iaees.org
Copyright © 2009-2024 International Academy of Ecology and Environmental Sciences. All rights reserved.
Web administrator: office@iaees.org, website@iaees.org; Last modified: 2024/4/27

Translate page to: