Life table and development parameters of green peach aphid [Myzus persicae (Sulzer) (Hemiptera: Aphididae)] at six different temperatures on pepper (Capsicum annuum L.)

Furkan Harun Bas and Mehmet Salih Özgökçe
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Furkan Harun Bas: Faculty of Agriculture, Plant Protection Department, Ondokuzmayis University, Körfez, Turkey
Mehmet Salih Özgökçe: Department of Plant Protection, Faculty of Agriculture, Van Yüzüncü Yil University, Van, Türkiye

Plant Protection Science, vol. preprint

Abstract: The green peach aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae) is an essential pest of pepper (Capsicum annuum L.). This study was conducted in 2015-2016. In this study, we collected data using 1 linear and 6 non-linear temperature-dependent development models, development parameters, and a life table of M. persicae at 6 different temperatures (18 °C, 22 °C, 25 °C, 28 °C, 30 °C, and 32 °C) on pepper. The development threshold temperature was 3.9 °C, and the thermal constant was 174.0 degree/day. The minimum, optimum, and maximum growth temperatures were calculated as 14.27 °C, 27.5 °C, and 35.5 °C, respectively. The shortest growth period of M. persicae was found to be 8.14 days at 28°C. The raw data obtained at the end of the study were analysed according to the age-stage, two-sex life table method. The highest intrinsic rate of increase (r) and the highest finite rate of increase (λ) were 0.25 d-1 and 1.28 d-1 at 25 °C, respectively. The highest net reproductive rate (R0) was 61.64 nymphs/female at 22 °C, and the highest mean generation time (T) was 20.92 days at 18 °C. According to the models applied, the optimum temperature for pest development is 27.5 °C, but the intrinsic rate of increase (r) calculated from the life table parameters was statistically higher in the 22 °C and 25 °C test groups. In this study, we investigated the effect of temperature on the pest's growth and development. Based on the observations, the temperatures at which the plants were not negatively affected and the insect's activity was limited, were determined from the reproduction, development, and life table parameters obtained under different temperatures in this study. This information may help effectively control pests without using, or minimise the use of, pesticides and emphasise the temperature factor, especially in places such as greenhouses where controlled climatic conditions are provided.

Keywords: population projection; temperature-dependent development models; age- stage; two-sex life table (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:preprint:id:96-2025-pps

DOI: 10.17221/96/2025-PPS

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