Cargando…

Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers

Aphelinus asychis, a polyphagous parasitoid, has been widely used as an efficient biological control agent against the aphid Myzus persicae. Aiming to evaluate the influence of temperature on the biological characteristics and control potential of A. asychis for M. persicae, we compared the life tab...

Descripción completa

Detalles Bibliográficos
Autores principales: Wang, Sheng Yin, Wang, Bo Li, Yan, Gai Lan, Liu, Yan Hong, Zhang, Da Yu, Liu, Tong Xian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7469146/
https://www.ncbi.nlm.nih.gov/pubmed/32727020
http://dx.doi.org/10.3390/insects11080475
_version_ 1783578368019529728
author Wang, Sheng Yin
Wang, Bo Li
Yan, Gai Lan
Liu, Yan Hong
Zhang, Da Yu
Liu, Tong Xian
author_facet Wang, Sheng Yin
Wang, Bo Li
Yan, Gai Lan
Liu, Yan Hong
Zhang, Da Yu
Liu, Tong Xian
author_sort Wang, Sheng Yin
collection PubMed
description Aphelinus asychis, a polyphagous parasitoid, has been widely used as an efficient biological control agent against the aphid Myzus persicae. Aiming to evaluate the influence of temperature on the biological characteristics and control potential of A. asychis for M. persicae, we compared the life table parameters and control potential of A. asychis, which included the developmental time, longevity, fecundity, intrinsic rate of increase (r), and finite killing rate (θ). The results showed that increasing the temperature significantly decreased the developmental time and longevity of A. asychis. The r at 24 (0.2360 d(−1)) and 28 °C (0.2441 d(−1)) were significantly greater than those at 20 (0.1848 d(−1)) and 32 °C (0.1676 d(−1)). The θ at 24 (0.4495), 28 (0.5414), and 32 °C (0.4312) were also significantly greater than that at 20 °C (0.3140). The relationship between population fitness (r and θ) and temperature followed a unary quadratic function (R(2) > 0.95). The temperatures for the expected maximum intrinsic rate of increase (r(max)) and the maximum finite killing rate (θ(max)) were 25.7 and 27.4 °C, respectively. In conclusion, A. asychis could develop and produce progenies within the temperature range of 20–32 °C, and its control efficiency for M. persicae at 24, 28, and 32 °C was greater than that at 20 °C. The most suitable temperature range for controlling M. persicae with A. asychis in the field might be between 25.7 and 27.4 °C.
format Online
Article
Text
id pubmed-7469146
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-74691462020-09-17 Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers Wang, Sheng Yin Wang, Bo Li Yan, Gai Lan Liu, Yan Hong Zhang, Da Yu Liu, Tong Xian Insects Article Aphelinus asychis, a polyphagous parasitoid, has been widely used as an efficient biological control agent against the aphid Myzus persicae. Aiming to evaluate the influence of temperature on the biological characteristics and control potential of A. asychis for M. persicae, we compared the life table parameters and control potential of A. asychis, which included the developmental time, longevity, fecundity, intrinsic rate of increase (r), and finite killing rate (θ). The results showed that increasing the temperature significantly decreased the developmental time and longevity of A. asychis. The r at 24 (0.2360 d(−1)) and 28 °C (0.2441 d(−1)) were significantly greater than those at 20 (0.1848 d(−1)) and 32 °C (0.1676 d(−1)). The θ at 24 (0.4495), 28 (0.5414), and 32 °C (0.4312) were also significantly greater than that at 20 °C (0.3140). The relationship between population fitness (r and θ) and temperature followed a unary quadratic function (R(2) > 0.95). The temperatures for the expected maximum intrinsic rate of increase (r(max)) and the maximum finite killing rate (θ(max)) were 25.7 and 27.4 °C, respectively. In conclusion, A. asychis could develop and produce progenies within the temperature range of 20–32 °C, and its control efficiency for M. persicae at 24, 28, and 32 °C was greater than that at 20 °C. The most suitable temperature range for controlling M. persicae with A. asychis in the field might be between 25.7 and 27.4 °C. MDPI 2020-07-27 /pmc/articles/PMC7469146/ /pubmed/32727020 http://dx.doi.org/10.3390/insects11080475 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Sheng Yin
Wang, Bo Li
Yan, Gai Lan
Liu, Yan Hong
Zhang, Da Yu
Liu, Tong Xian
Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title_full Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title_fullStr Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title_full_unstemmed Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title_short Temperature-Dependent Demographic Characteristics and Control Potential of Aphelinus asychis Reared from Sitobion avenae as a Biological Control Agent for Myzus persicae on Chili Peppers
title_sort temperature-dependent demographic characteristics and control potential of aphelinus asychis reared from sitobion avenae as a biological control agent for myzus persicae on chili peppers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7469146/
https://www.ncbi.nlm.nih.gov/pubmed/32727020
http://dx.doi.org/10.3390/insects11080475
work_keys_str_mv AT wangshengyin temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers
AT wangboli temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers
AT yangailan temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers
AT liuyanhong temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers
AT zhangdayu temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers
AT liutongxian temperaturedependentdemographiccharacteristicsandcontrolpotentialofaphelinusasychisrearedfromsitobionavenaeasabiologicalcontrolagentformyzuspersicaeonchilipeppers