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  1. Book ; Online: Biopesticides Manual

    Grunder, Julien / Mulaa, Margaret / Faheem, Muhammad / Holmes, Keith A / Babendreier, Dirk / Durocher-Granger, Léna / Bateman, Melanie / Chaudhary, Malvika

    Guidelines for Selecting, Sourcing, Producing and Using Biopesticides for Key Pests of Tobacco

    2018  

    Keywords Tobacco industry ; Pest control ; biological control agents ; Solanales ; arthropods ; insect nematodes ; eudicots ; aquatic species ; entomopathogens ; botanical pesticides ; tobacco ; animals ; Solanaceae ; pest control ; beneficial organisms ; entomophilic nematodes ; eukaryotes ; predacious insects ; Nicotiana ; data logging ; plant pests ; biocontrol agents ; biological control ; insects ; information services ; information sources ; plot design ; decision making ; parasitoids ; manuals ; pests ; handbooks ; pathogens ; plants ; aquatic organisms ; semiochemicals ; experimental design ; aquatic plants ; biocontrol ; predators ; predatory insects ; data collection ; nematodes ; natural enemies ; beneficial species ; biological control organisms ; angiosperms ; parasites ; Hexapoda ; Spermatophyta ; choice ; predaceous insects ; invertebrates
    Language English
    Size 1 electronic resource (146 pages)
    Publisher CABI
    Publishing place UK
    Document type Book ; Online
    Note English
    HBZ-ID HT030380368
    ISBN 9781789242010 ; 1789242010
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Investigating the feasibility of developing a collective action for biological control of fall armyworm among smallholder farmers in rural communities of Zambia

    Durocher-Granger, Léna / Fiorito, Sara / Mudenda, Sibajene Kambanja / Chiboola, Milimo Mildred / Kansiime, Monica K. / Ludwig, David / Leeuwis, Cees

    CABI Agriculture and Bioscience

    2023  Volume 4, Issue 1

    Abstract: Background: Fall armyworm, Spodoptera frugiperda, an alien invasive pest from the Americas, was detected in Zambia late 2016 and since has caused significant losses on maize threatening livelihood and food security. Individually, farmers continue to rely ...

    Abstract Background: Fall armyworm, Spodoptera frugiperda, an alien invasive pest from the Americas, was detected in Zambia late 2016 and since has caused significant losses on maize threatening livelihood and food security. Individually, farmers continue to rely on synthetic pesticides, a reactive measure to manage new invasive insect pests, posing risks to human health, the environment and biodiversity. Biological control has been proven to be an efficient, cost effective and safe method for pest and disease management, and when adopted collectively, its effectiveness can increase. In addition, collective action has been acknowledged to be a critical component for invasive species management, but is still poorly studied in low- and middle-income countries (LMIC) where the national plant health system, in-place to prevent and manage biological invasions, is limited. Methods: To study the feasibility of creating a collective action to promote biological control for fall armyworm among smallholder farmers in rural Zambia and the social and institutional conditions needed for it to be successful and sustainable, we conducted focus group discussions and in-depth interviews in two districts with maize smallholder farmers. Our model to assess the results applies both Ostrom’s 8 Design Principles for a community-based management of common-pool resources and criteria of an agricultural innovation that meet the community’s requirements, and also pays attention to the exchange and brokering processes needed to match the two. Results: Our results showed that some conditions are already in place to support a collective action to manage fall armyworm such as matching rules to local conditions, collective-choice arrangement, conflict-resolution mechanism and minimal recognition of rights to organize which are supported by traditional leadership of the communities. However other conditions would need to be strengthened for the collective pest management to be sustainable. The most important criteria for a pest management innovation ...
    Keywords Biological control ; Collective action ; Dilemma ; Fall armyworm ; Invasive species ; Ostrom ; Social capital ; Social structure ; Zambia
    Subject code 910
    Language English
    Publishing country nl
    Document type Article ; Online
    ISSN 2662-4044
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Factors influencing the occurrence of fall armyworm parasitoids in Zambia [Erratum: January 2022, v.95(1), pp.539-540]

    Durocher-Granger, Léna / Mfune, Tibonge / Musesha, Monde / Lowry, Alyssa / Reynolds, Kathryn / Buddie, Alan / Cafà, Giovanni / Offord, Lisa / Chipabika, Gilson / Dicke, Marcel / Kenis, Marc

    Journal of pest science. 2021 Sept., v. 94, no. 4

    2021  

    Abstract: Invasive alien species have environmental, economic and social impacts, disproportionally threatening livelihood and food security of smallholder farmers in low- and medium-income countries. Fall armyworm (FAW) (Spodoptera frugiperda), an invasive insect ...

    Abstract Invasive alien species have environmental, economic and social impacts, disproportionally threatening livelihood and food security of smallholder farmers in low- and medium-income countries. Fall armyworm (FAW) (Spodoptera frugiperda), an invasive insect pest from the Americas, causes considerable losses on maize to smallholder farmers in Africa since 2016. The increased use of pesticides to control FAW in Africa raises concerns for health and environmental risks resulting in a growing interest in research on biological control options for smallholder farmers. In order to evaluate the occurrence of local natural enemies attacking FAW, we collected on a weekly basis FAW eggs and larvae during a maize crop cycle in the rainy season of 2018–2019 at four locations in the Lusaka and Central provinces in Zambia. A total of 4373 larvae and 162 egg masses were collected. For each location and date of collection, crop stage, the number of plants checked and amount of damage were recorded to analyse which factors best explain the occurrence of the natural enemy species on maize. Overall parasitism rates from local natural enemies at each location varied between 8.45% and 33.11%. We identified 12 different egg-larval, larval and larval-pupal parasitoid species. Location, maize growth stage, pest density and larval stage significantly affected parasitoid species occurrence. Our findings indicate that there is potential for increasing local populations of natural enemies of FAW through conservation biological control programmes and develop safe and practical control methods for smallholder farmers.
    Keywords Spodoptera frugiperda ; biological control ; corn ; eggs ; food security ; insect pests ; invasive species ; larvae ; livelihood ; natural enemies ; parasitism ; parasitoids ; wet season ; Zambia
    Language English
    Dates of publication 2021-09
    Size p. 1133-1146.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 2141662-X
    ISSN 1612-4766 ; 1439-0280 ; 1612-4758
    ISSN (online) 1612-4766 ; 1439-0280
    ISSN 1612-4758
    DOI 10.1007/s10340-020-01320-9
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 799: Show issues

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  4. Article: Optimizing the timing of management interventions against fall armyworm in African smallholder maize: Modelling the pattern of larval population emergence and development

    Lowry, Alyssa / Durocher-Granger, Léna / Oronje, MaryLucy / Mutisya, Daniel / Mfune, Tibonge / Gitonga, Christine / Musesha, Monde / Taylor, Bryony / Wood, Suzy / Chacha, Duncan / Beale, Tim / Finch, Elizabeth A. / Murphy, Sean T.

    Crop protection. 2022 Mar. 14,

    2022  

    Abstract: Since its invasion in late 2016, the fall armyworm has a widespread year-round distribution within Africa where it continues to threaten cereal production, particularly maize. Most recommended control advice emphasises the need for interventions against ... ...

    Abstract Since its invasion in late 2016, the fall armyworm has a widespread year-round distribution within Africa where it continues to threaten cereal production, particularly maize. Most recommended control advice emphasises the need for interventions against larvae early after colonization of a new maize crop by adults followed by a later intervention if an infestation persists. The current times for action are approximate action thresholds based on scouting which are difficult to implement as early development stages are cryptic and farmers, especially smallholders, have limited time for crop assessments. To improve the impact of controls, the modelling of early and late instar larval population emergence and development in relation to physiological time from planting was developed to enable times to action to be predicted and conveyed to farmers. The two larval population emergence models were built from field fall armyworm data from maize in Zambia and validated from similar data from multiple maize sites in Kenya. A component was included in the models to allow synchronization of maize emergence with larval development. Physiological time, in degree-days, was estimated using Earth Observation land surface temperature data sets. As precise information on action thresholds is lacking for Africa, recent published data on thresholds based on economic injury levels from Colombia were used as a guide but the models can be updated when new information becomes available for Africa. The practical implementation of the models in Africa is discussed including the outcome of some recent preliminary trials with maize farmers in Kenya.
    Keywords Spodoptera frugiperda ; corn ; early development ; heat sums ; instars ; larvae ; larval development ; plant protection ; surface temperature ; Colombia ; Kenya ; Zambia
    Language English
    Dates of publication 2022-0314
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ZDB-ID 786839-x
    ISSN 1873-6904 ; 0261-2194
    ISSN (online) 1873-6904
    ISSN 0261-2194
    DOI 10.1016/j.cropro.2022.105966
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 3919: Show issues

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  5. Article ; Online: Correction to

    Durocher‑Granger, Léna / Mfune, Tibonge / Musesha, Monde / Lowry, Alyssa / Reynolds, Kathryn / Buddie, Alan / Cafà, Giovanni / Offord, Lisa / Chipabika, Gilson / Dicke, Marcel / Kenis, Marc

    Journal of Pest Science

    Factors influencing the occurrence of fall armyworm parasitoids in Zambia

    2022  Volume 95, Issue 1

    Abstract: Following publication of the original article, the authors identified an error in Fig. 6. The correct Fig. 6 and its caption is given below. The Original article has been revised. (Figure presented.). ...

    Abstract Following publication of the original article, the authors identified an error in Fig. 6. The correct Fig. 6 and its caption is given below. The Original article has been revised. (Figure presented.).
    Keywords Life Science
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 2141662-X
    ISSN 1612-4766 ; 1439-0280 ; 1612-4758
    ISSN (online) 1612-4766 ; 1439-0280
    ISSN 1612-4758
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    In stock of ZB MED Bonn / Germany

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  6. Article: Gamete number and size correlate with adult size in the egg parasitoid Trichogramma euproctidis

    Durocher-Granger, Léna / Boivin, Guy / Martel, Véronique

    Entomologia experimentalis et applicata. 2011 Sept., v. 140, no. 3

    2011  

    Abstract: In parasitoids, the size of the adult is influenced by the size and quality of the host in which it develops. Body size is generally positively correlated with several adult fitness proxies (fecundity, longevity, and mating capacity). The initial ... ...

    Abstract In parasitoids, the size of the adult is influenced by the size and quality of the host in which it develops. Body size is generally positively correlated with several adult fitness proxies (fecundity, longevity, and mating capacity). The initial resources available to an individual can influence gamete production (sperm and oocytes), and the number and quality of gametes produced directly influence the expected fitness of both males and females. Gamete production in relation to adult body size was quantified in Trichogramma euproctidis (Girault) (Hymenoptera: Trichogrammatidae), a short-lived egg parasitoid of lepidopteran species. To avoid host quality variation, male and female parasitoids of different body sizes were produced using superparasitism by allowing mated and virgin female parasitoids to oviposit on Trichoplusia ni Hübner (Lepidoptera: Noctuidae) eggs. Seminal vesicles and ovaries of their offspring were dissected to count oocytes and to measure sperm length and oocytes volume. Tibia length was also measured to estimate body size. The number of oocytes, volume of oocytes, maternal investment index [= (number of oocytes × mean volume of oocytes)/10 000] and sperm length were all significantly positively correlated to body size. These results show that initial resources acquired during larval stage induce phenotypic plasticity in gamete production in both male and female T. euproctidis. Whereas number of sperm and oocytes can influence the fitness of males and females through increased mating capacity and fecundity, variation in gamete size (sperm length and oocyte volume) could also affect the fitness of an individual through sperm and larval competition.
    Keywords adults ; body size ; eggs ; fecundity ; females ; gametogenesis ; larvae ; legs ; longevity ; males ; oocytes ; oviposition ; parasitoids ; phenotypic plasticity ; progeny ; seminal vesicles ; spermatozoa ; superparasitism ; Trichogramma ; Trichoplusia ni
    Language English
    Dates of publication 2011-09
    Size p. 262-268.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    Note Includes references
    ZDB-ID 216272-6
    ISSN 0013-8703
    ISSN 0013-8703
    DOI 10.1111/j.1570-7458.2011.01158.x
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 1216: Show issues

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  7. Article ; Online: Factors influencing the occurrence of fall armyworm parasitoids in Zambia

    Durocher-Granger, Léna / Mfune, Tibonge / Musesha, Monde / Lowry, Alyssa / Reynolds, Kathryn / Buddie, Alan / Cafà, Giovanni / Offord, Lisa / Chipabika, Gilson / Dicke, Marcel / Kenis, Marc

    Journal of Pest Science

    2021  Volume 94, Issue 4

    Abstract: Invasive alien species have environmental, economic and social impacts, disproportionally threatening livelihood and food security of smallholder farmers in low- and medium-income countries. Fall armyworm (FAW) (Spodoptera frugiperda), an invasive insect ...

    Abstract Invasive alien species have environmental, economic and social impacts, disproportionally threatening livelihood and food security of smallholder farmers in low- and medium-income countries. Fall armyworm (FAW) (Spodoptera frugiperda), an invasive insect pest from the Americas, causes considerable losses on maize to smallholder farmers in Africa since 2016. The increased use of pesticides to control FAW in Africa raises concerns for health and environmental risks resulting in a growing interest in research on biological control options for smallholder farmers. In order to evaluate the occurrence of local natural enemies attacking FAW, we collected on a weekly basis FAW eggs and larvae during a maize crop cycle in the rainy season of 2018–2019 at four locations in the Lusaka and Central provinces in Zambia. A total of 4373 larvae and 162 egg masses were collected. For each location and date of collection, crop stage, the number of plants checked and amount of damage were recorded to analyse which factors best explain the occurrence of the natural enemy species on maize. Overall parasitism rates from local natural enemies at each location varied between 8.45% and 33.11%. We identified 12 different egg-larval, larval and larval-pupal parasitoid species. Location, maize growth stage, pest density and larval stage significantly affected parasitoid species occurrence. Our findings indicate that there is potential for increasing local populations of natural enemies of FAW through conservation biological control programmes and develop safe and practical control methods for smallholder farmers.
    Keywords Conservation biological control ; Maize ; Maize growth stage ; Spodoptera frugiperda ; Survey of parasitoids ; Zambia
    Subject code 333
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 2141662-X
    ISSN 1612-4766 ; 1439-0280 ; 1612-4758
    ISSN (online) 1612-4766 ; 1439-0280
    ISSN 1612-4758
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 799: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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