Determination of fitness traits of Orius strigicollis Poppius (Hemiptera: Anthocoridae) on Pectinophora gossypiella (Lepidoptera: Gelechiidae) using two-sex life table analysis
文献类型： 外文期刊
作者： Ali, Shahzaib 1 ; Zhu, Qian 1 ; Jaleel, Waqar 2 ; Rehman, Shakeel Ur 1 ; Rasheed, Muhammad Asim 1 ; Khan, Muhammad 1 ;
作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Hubei Insect Resources Utilizat & Sustainable Pes, Wuhan, Peoples R China
2.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangdong Prov Key Lab High Technol Plant Protect, Guangzhou, Peoples R China
3.South China Agr Univ, Engn Res Ctr Biol Control, Key Lab Biopesticide Innovat & Applicat, Guangzhou, Peoples R China
4.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou, Zhejiang, Peoples R China
关键词： Age-stage; Feeding potential; Fitness; Orius strigicollis; Pectinophora gossypiella; Population parameters; Two-sex life table; Temperature
期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）
ISSN： 2167-8359
年卷期： 2020 年 8 卷
页码：
收录情况： SCI
摘要： Background: Pink bollworm (Pectinophora gossypiella) is a destructive insect pest of cotton crops in China and globally, which is actively predated on by Orius strigicollis. Studies on the fitness or survival of O. strigicollis fed on P. gossypiella at different temperatures have not been reported. The fitness of O. strigicollis may be well explained using two-sex life table parameters. Thus, the present study provides important insights for the effective biocontrol of P. gossypiella. Methodology: Considering the importance of fitness parameters and biocontrol, the present study explores the feeding potential and age-stage, two-sex life table traits of O. strigicollis on P. gossypiella eggs at different temperatures (24, 28 and 32 degrees C) in the laboratory. Results: The intrinsic rate of increase (r) was higher at 28 degrees C (0.14 d(-1)) than at 24 degrees C (0.0052 d(-1)) and 32 degrees C (0.12 d(-1)). Similarly, the net reproductive rate (R-0) was higher at 28 degrees C (17.63 offspring) than at 24 degrees C (1.13 offspring) and 32 degrees C (10.23 offspring). This concluded that the maximum feeding potential and growth capacity of O. strigicollis could be attained at 28 degrees C when fed on P. gossypiella eggs. O. strigicollis adults preferred to feed on P. gossypiella eggs compared with first instar larvae. Based on these results, the present study suggests that O. strigicollis represents a promising biological control agent against P. gossypiella eggs in cotton fields.
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