Phenology of Fopius arisanus

Fopius arisanus (Sonan), a koinobiont solitary egg-pupal endoparasitoid of numerous tephritid fruit fly specie, was recently introduced into Africa for the control of the Oriental fruit fly, Bactrocera dorsalis (Hendel). In this study, life-table data of F. arisanus were generated under laboratory conditions at six constant temperatures (15, 20, 25, 30, 28 and 35 °C; 75% RH, L12:D12 photoperiod) on Bactrocera dorsalis. Several non-linear functions were fitted to model species development, mortality, longevity and oviposition using the Insect Life Cycle Modeling software. The established phenology models were stochastically simulated at fluctuating temperatures to estimate the life table parameters. F. arisanus completed development from egg to adult at all the temperatures tested except at 35 °C. Mean developmental time from egg to adult was inversely proportional to the temperature. The minimum temperature threshold (Tmin) from egg to adult was 8.15 °C, while the maximum temperature threshold (Tmax) was estimated at 34.2 °C. The optimal temperature for immature stages survival was predicted for 20 to 30 °C. The optimum fecundity estimated was 251 eggs/female at 22 °C. Following the stochastic simulations, the Humid Forest with Bimodal Rainfall of Cameroon presented suitable thermal conditions for potential population growth of F. arisanus. The present study shows the importance of temperature on the demographic parameters of F. arisanus. Effect of the difference in thermal requirements between B. dorsalis and F. arisanus on biological control under climate change scenarios is discussed.

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Field Value
Creator Nanga, Samuel
Creator Affiliation International Institute of Tropical Agriculture (IITA)
Creator ID Type ORCID
Creator ID 0000-0003-4281-8284
Subject Vocab (AGROVOC/GACS/CAB) Biological control,Climate change,Phenology,Simulation,Life tables,Prediction,Parasitoids,Temperature
Subject(s) Fopius arisanus
Publisher International Institute of Tropical Agriculture (IITA)
Contributor Person Sévilor Kekeunou, Apollin Fotso Kuate, Komi K. M. Fiaboe, Michel Dongmo Kenfack, Henri E. Z. Tonnang, Desiré Gnanvossou, Champlain Djiéto-Lordon and Rachid Hanna
Contributor Role Supervisor
Contributor Project Lead Organisation Center International Institute of Tropical Agriculture (IITA)
Contributor Project Lead Center International Institute of Tropical Agriculture (IITA)
Contributor CRP CGIAR Research Program on Integrated Systems for the Humid Tropics(Humidtropics)
Contributor Partner Not applicable
Contributor Donor Federal Ministry for Economic Cooperation and Development (BMZ) (Project no- 10.7860.9-001.00; contract no. 81132021), IITA Core donors, CGIAR Humidtropics CRP
Contributor Project Combating fruit flies and mango seed weevil through community-based implementation of a sustainable IPM programme for mango in sub-Saharan Africa
Project ID PJ-001276
Contributor Affiliation International Institute of Tropical Agriculture (IITA)
Open-Access status Open Access
Production Date 2020-10-25
Embargo End Date 2022-10-25
Content Type Dataset
File Format csv
Identifier Type DOI
Identifier https://doi.org/10.25502/8kf1-6y77/d
Identifier Citation
Source Combating fruit flies and mango seed weevil through community-based implementation of a sustainable IPM programme for mango in sub-Saharan Africa
Language English
Relation Not applicable
Agroecological Zone Humid warm tropics
Coverage Region Central Africa
Coverage country Cameroon
Coverage Admin Unit Not applicable
Coverage Y (Latitude) 11.46262
Coverage X (Longitude) 10.55914
Coverage Start Date 2013-01-25
Coverage End Date 2014-03-09
Contact Nanga, Samuel; Biological control/ Plant health, International Institute of Tropical Agriculture (IITA)
Contact Email s.nanga@cgiar.org; rachidhanna01@gmail.com, k.fiaboe@cgiar.org
Restriction CC-Zero
Email Permission Not applicable
Rights CC-Zero