Régis Babin

Régis Babin
Centre d'Excellence Africain sur les Changements Climatiques la Biodiversité et l'Agriculture Durable (CEA-CCBAD) de l'Université Félix Houphouët Boigny (Bingerville Côte d'Ivoire) · Entomology

PhD - HDR

About

76
Publications
50,697
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937
Citations
Citations since 2016
33 Research Items
742 Citations
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2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Introduction
Régis Babin is an entomologist working for CIRAD since 1998. He has been involved in several research and development projects on cotton, cacao and coffee in West and East Africa where he worked for more than 15 years. He graduated with a PhD on cacao pest ecology in 2009. He is currently based at Centre d'Excellence Africain sur les Changements Climatiques, la Biodiversité et l'Agriculture Durable (CEA-CCBAD) of Université Félix Houphouët Boigny, Bingerville, Côte d'Ivoire. Régis Babin is experienced in insect population dynamics, agrosystem characterization including biodiversity and microclimate assessment, insect life history including development, behaviour and chemical ecology, and Integrated Pest Management, with the prospect of climate change.
Additional affiliations
February 1998 - present
Cirad - La recherche agronomique pour le développement
Position
  • Entomologist

Publications

Publications (76)
Article
The coffee berry borer, Hypothenemus hampei Ferrari (Coleoptera: Curculionidae, Scolytinae), is the most devastating insect pest of coffee worldwide. It feeds on the beans inside the berries leading to significant crop losses and unmarketable products. This study aims to model the impact of temperature on H. hampei fecundity and population growth p...
Article
In the Eastern Africa highlands, the gradual transformation of natural ecosystems to smallholding coffee-based agrosystems has resulted in more fragmented landscapes. Major pests of coffee find appropriate living conditions leading to high infestation rates and the need for smallholder farmers to implement pest control measures. This study aims to...
Article
Full-text available
Sahlbergella singularis is a major insect pest of cocoa in Cameroon. Conventional insecticides remain the most widely used option for mirid control, which unfortunately have adverse effects on the environment and human health. Improved methods of controlling this species, both environmentally friendly and inexpensive to farmers, are requirements. V...
Article
It has been suggested that increasing plant species diversity (PSD) in agroecosystems at different spatiotemporal scales reduces the impacts of crop pests and diseases as well as the dependence on synthetic plant protection products. This principle was applied to a range of tropical case studies. These studies involved various pests and pathogens w...
Article
The African coffee white stem borer Monochamus leuconotus (Pascoe) (Coleoptera: Cerambycidae) is a destructive insect pest of Arabica coffee trees in African highlands. Our study aims to provide information on the pest biology as influenced by temperature, determine thermal thresholds, and provide life table parameters for M. leuconotus reared in t...
Conference Paper
Antestia bugs Antestiopsis spp. (Hemiptera: Pentatomidae) are important insect pests of Arabica coffee in Africa. These pests attack flower buds, shoots, leaves, and green berries leading to both low yields and quality of coffee beans. In East Africa, Antestiopsis thunbergii and A. facetoides were found to co-occur in coffee plantations. However, t...
Article
Although the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae) is the most destructive insect pest of coffee worldwide, there is much to learn about its thermal biology. This study aimed to develop temperature-based models for H. hampei development and to provide the thermal requirements of immature stages in...
Article
en We investigated the ant community structure in cocoa farms in the Centre Region of Cameroon. Ants were collected on the cocoa trees during the years 2006 and 2007 using chemical knock‐down. We tested the hypothesis of the existence of deterministic factor in the structuration of ant mosaic using C‐Score; we assessed the relationship between the...
Chapter
Full-text available
Régulation des bioagresseurs des cultures dans les systèmes agroforestiers tropicaux, revue des approches bagny beiLhe L., aLLinne c., aveLino J., babin r., brévauLt t., gidoin c., ngo bieng m.a., motisi n., soti v. et ten hooPen g.m. Résumé. Au sein des systèmes agroforestiers tropicaux, de nombreuses interactions se déroulent dans et entre les en...
Article
Full-text available
Mirids (Sahbergella singularis and/or Distantiella theobroma) are the major pests of cacao farms in Africa. Cocoa production losses due to these species have been widely documented in West Africa. However, their impact on cocoa production is unknown in Central Africa, especially in Cameroon. Moreover, no data are available on the threshold level of...
Article
Full-text available
The impact of mirids true bug on cocoa production is widely assessed for Sahlbergella singularis and Distantiella theobroma species in the cocoa growing area in Africa. No study has been focused on the impact of another common mirid species in cocoa farming, such as Helopeltis sp., on the cocoa productivity. Thus, the main objective of this work wa...
Technical Report
Full-text available
This document is a technical sheet produced as part of the collective expertise commissioned to CIRAD by FAO, LOA N°325120
Article
Full-text available
The antestia bug, Antestiopsis thunbergii (Gmelin 1790) is a major pest of Arabica coffee in Africa. The bug prefers coffee at the highest elevations, contrary to other major pests. The objectives of this study were to describe the relationship between A. thunbergii populations and elevation, to elucidate this relationship using our knowledge of th...
Article
Full-text available
Understanding the roles of volatile organic compounds (VOCs) in insect–plant interactions is a key component towards the development of safe pest management strategies and sustainable agriculture. Kairomones in unripe berries of Coffea arabica mediate host recognition of second instar nymphs of Antestia bugs, Antestiopsis thunbergii Gmelin, and are...
Article
Full-text available
• The African coffee white stem borer (CWSB) Monochamus leuconotus is a destructive pest of Arabica coffee in Africa. Documentation on outbreaks, spatiotemporal development and the relationship with different environmental conditions and coffee production system is limited. • To underpin effective control measures, we studied aspects of local and r...
Article
The use of ants for biological control of insect pests was the first reported case of conservation biological control. Direct and indirect community interactions between ants and pests lead to differential spatial pattern. We investigated spatial interactions between mirids, the major cocoa pest in West Africa and numerically dominant ant species,...
Chapter
Full-text available
This book is an up-to-date and comprehensive reference covering pest management in organic farming in major crops of the world. General introductory chapters explore the management of crops to prevent pest outbreaks, plant protection tools in organic farming, and natural enemies and pest control. The remaining chapters are crop-based and discuss ge...
Article
Full-text available
The variegated coffee bug Antestiopsis thunbergii Gmelin is a key pest of Coffea arabica in East Africa. Although the bug feeds on various parts of the coffee plant, it has a strong preference for mature green berries which are essential for the bug to complete its life cycle, reproduce and enhance its longevity. To locate mature green coffee berri...
Article
The antestia bug Antestiopsis thunbergii (Hemiptera: Pentatomidae) is a major pest of Arabica coffee in African tropical highlands. It feeds on coffee plant vegetative parts and berries leading to a direct reduction in coffee yield and quality. This study aimed to determine A. thunbergii thermal requirements, and to obtain new information on the pe...
Presentation
Full-text available
For the last 50 years, coffee production has been in constant decline for major producing countries of Eastern Africa, like Kenya and Tanzania. Factors explaining this decline include high production costs, especially costs for fertilizers and pesticides, which led many smallholders to phase out of coffee farming. The African coffee white stem bore...
Conference Paper
The antestia bug Antestiopsis thunbergii (Gmelin 1790) is one of the most damaging pests of Arabica coffee in eastern and southern Africa. It feeds on coffee vegetative parts and fruits, leading to yield and quality reduction. The present study aims to predict the impact of temperature increase on the distribution and abundance of A. thunbergii ove...
Book
Full-text available
Features: • Presents a brief history of past classifications, a summary of present classification, and speculation on how the classification may evolve in the future • Includes keys for the identification of families and subfamilies of the Pentatomoidea and for the tribes in the Pentatomidae • Explains transmission of plant pathogens and concepts o...
Article
Full-text available
Although the African coffee white stem borer, Monochamus leuconotus (Pascoe) (Coleoptera: Cerambycidae), is a major insect pest of coffee in Africa, there is much to learn about its biology. The present paper describes an original rearing method for M. leuconotus and provides unpublished biological data for the pest. The coffee white stem borer col...
Conference Paper
Full-text available
International trade of coffee from the great lakes region of Africa is threatened by the coffee stink bug, Antestiopsis thunbergii and its association with poor quality liquor, often called the “potato taste defect”. Previous studies have reported that immature coffee berries are strongly preferred by the pest unlike other coffee parts in the field...
Article
Full-text available
The antestia bug Antestiopsis thunbergii (Gmelin 1790) is a major coffee pest in East Africa. Nymphs and adults feed on all vegetative and fruiting parts of the coffee tree leading to yield reduction and poor quality of coffee beans. Our study aimed to characterize the developmental biology and provide life table parameters for A. thunbergii reared...
Chapter
Full-text available
Climate change alters the behaviour of pests and their distribution. There is a genuine risk that pest and disease pressure will increase as a result of environmental and agrosystem disturbances. This is a concern for all agricultural stakeholders, especially in temperate countries where introductions of new pests, diseases and weeds abound. The li...
Chapter
Full-text available
Le changement climatique modifie le comportement des bioagresseurs et leur distribution. Les risques que la pression phytosanitaire s’accroisse du fait des perturbations sur l’environnement et les agrosystèmes sont réels et inquiètent l’ensemble des acteurs agricoles, en particulier dans les pays tempérés où les introductions de nouveaux ravageurs,...
Article
Full-text available
The population dynamics of African cacao mirids have been widely studied in shaded cacao systems, which are predominant in most of the cocoa producing countries. The current establishment of new cacao systems in Cameroon enables us to study mirids and the spatial distribution of their damage in six unshaded cacao plantations that are down on savann...
Article
Full-text available
In African cocoa agroforestry systems, ants represent the most important part of arboreal arthropod biomass and play a crucial role in ecosystem functioning. The more abundant are supposed to be involved in crop pest regulation. However, the lack of knowledge about ecological interactions between ants and their habitat, including other ant species...
Article
Full-text available
Combining crop plants with other plant species in agro-ecosystems is one way to enhance ecological pest and disease regulation mechanisms. Resource availability and microclimatic variation mechanisms affect processes related to pest and pathogen life cycles. These mechanisms are supported both by empirical research and by epidemiological models, ye...
Article
Full-text available
Agroforestry systems may represent refugia for native fauna in highly disturbed environments. In the context of ongoing intensive destruction of tropical rainforest by agricultural activities, there is a wealth of information on the influence of agricultural practices on arthropod diversity on southern Cameroon cocoa farms. The present study examin...
Article
Full-text available
The chemical control is the widely control method applied in Cameroon for pests and diseases by all the cocoa producers without technical suitable assistance by the State as before 1980'S. However, it is known that farmers have less knowledge on the good pesticides use for the control of a specific pest. The objective of this study was to provide i...
Article
Full-text available
In order to assess the influence of insecticides treatment on ant diversity and recolonization processes in cocoa based agroforestry systems, sampling was performed using chemical knock-down technique during two consecutive cocoa campaigns (2006 and 2007) in six smallholding cocoa farms located in tree localities of the Centre Region of Cameroon. T...
Article
Full-text available
Mirids are the primary pests affecting cocoa production in Africa, but no genetic studies have been conducted on these insects. Here we report the isolation and characterization of 12 polymorphic microsatellite loci for Sahlbergella singularis. A microsatellite-enriched genomic DNA library was developed and screened to identify marker loci. Twelve...
Article
Full-text available
Populations of the cocoa mirid, Sahlbergella singularis Haglund (Hemiptera: Miridae), on cocoa, Theobroma cacao L. (Malvaceae), display sharp seasonal fluctuations in population size. To better understand factors and mechanisms involved in seasonal variation, we studied the life history traits of 10 successive generations of a caged population unde...
Conference Paper
Full-text available
The arrival and subsequent dispersal of Phytophthora megakarya within young cacao plantations, previously free of black pod and containing cacao germplasm that is evaluated for its resistance to P. megakarya, is the subject of an ongoing study in Cameroon. A total of 12 plantations, established in 2006 on lands free of cacao cultivation for at leas...
Conference Paper
Full-text available
Manipulating ant communities to control pests of cocoa has proven to be a promising strategy, especially in Asia. However, concerning African cocoa mirids, the main pests of cocoa in Africa, basic knowledge on mirid-ant relationships is still incomplete. Our study aimed to characterize the spatial relationships between dominant ant species and the...
Conference Paper
Full-text available
Worldwide, crop monocultures have proven to be particularly susceptible to pests and diseases. In Africa, unshaded "pure" cocoa plantations are often highly damaged by mirids and consequently require intensive phytosanitary protection. The aim of this study was to assess the impact of an alternative agronomic practice, a cocoa-fruit intercropping s...
Article
Full-text available
The real impact of true bug damage on cocoa pods has never been assessed precisely. We conducted a 2-yr study on 1,080 cocoa trees on 36 farms in Cameroon to assess the contribution of true bugs to fruit mortality and production loss. The cocoa fruiting cycle, fruit mortality, and damage caused by true bugs as well as other pests and diseases were...
Article
Full-text available
https://www.agriskmanagementforum.org/content/incorporating-plant-species-diversity-cropping-systems-pest-and-disease-risk-management
Article
Full-text available
Field trapping experiments were conducted to evaluate the attractiveness of five different pheromone blends as well as the impact of trap design on attractiveness towards cocoa mirids, Sahlbergella singularis Hagl. and Distantiella theobroma (Dist.), in Cameroon. A total of 361 adults of S. singularis (359 males and two females) were caught. The hi...
Article
Full-text available
Shade management is commonly considered to be an effective pest management strategy for cocoa mirids, yet shade management recommendations are not based on extensive knowledge of the mirid ecology in traditional cocoa agroforests. The main objectives of the present study were an assessment of the impact of shade on the spatial distribution of mirid...
Conference Paper
Full-text available
Black pod rot of cocoa caused by Phytophthora megakarya causes significant losses in Cameroon. Studying the spatial and temporal disease dynamics of P. megakarya provides useful information on the mechanisms of dispersal and the physiological and biological factors that are important for its spread and ultimately its management. Therefore, we studi...
Article
Full-text available
This work aims at better understanding the mecanisms and agro-ecological factors involved in the Sahlbergella singularis population dynamics in farm. Life table analysis conducted on a rearing population showed that S. singularis is a slow growing species. This result could explain the low densities of S. singularis populations in cocoa farms. The...
Conference Paper
Full-text available
Mirid bugs are regarded as the most damaging pests of cocoa in Africa. In Cameroon, Sahlbergella singularis is by far the most common mirid species on cocoa. In nature, S. singularis populations display sharp seasonal fluctuations. Yet, in absence of integrated studies, including cocoa tree growth and physiology, chemical ecology, as well as mirid...
Conference Paper
Full-text available
The brown cocoa mirid, Sahlbergella singularis is the major insect pest of cocoa in Nigeria and this pest is capable of causing yield loss of up to about 80%. A new rearing technique was described and morphometrics, fecundity and developmental biology of the insect were investigated. The rearing technique was conducted in two phases. Firstly, 20 da...
Conference Paper
Full-text available
Les forêts du Cameroun sont connues pour leur grande richesse faunistique et floristique. L'installation des cacaoyères modifie la faune originelle de ces écosystèmes, dont les espèces écologiquement spécialisées régressent au profit d'espèces anthropiques. En outre, certaines espèces opportunistes adoptent le cacaoyer comme plante hôte alternative...