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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: Repellent effects of the essential oils of Cymbopogon citratus and Tagetes minuta on the sandfly, Phlebotomus duboscqi.

    Kimutai, Albert / Ngeiywa, Moses / Mulaa, Margaret / Njagi, Peter G N / Ingonga, Johnstone / Nyamwamu, Lydia B / Ombati, Cyprian / Ngumbi, Philip

    BMC research notes

    2017  Volume 10, Issue 1, Page(s) 98

    Abstract: Background: The sandfly, Phlebotomus duboscqi is a vector of zoonotic cutaneous leishmaniasis (ZCL) that is an important public health problem in Eastern Africa. Repellents have been used for protection of humans against vectors of ZCL and other vectors ...

    Abstract Background: The sandfly, Phlebotomus duboscqi is a vector of zoonotic cutaneous leishmaniasis (ZCL) that is an important public health problem in Eastern Africa. Repellents have been used for protection of humans against vectors of ZCL and other vectors that transmit killer diseases including malaria, Rift Valley fever, dengue, and yellow fever. The repellent effects of different doses of the essential oils from the lemon grass, Cymbopogon citratus and Mexican marigold, Tagetes minuta were evaluated in a two-chamber bioassay against 3- to 7-day-old unfed females of P. duboscqi in the laboratory. The results were compared with those that were obtained when test animals were treated with an equivalent dose of diethyl-3-methylbenzamide, which is a repellent that is commonly used as a positive control.
    Results: Overall, percentage repellency increased with increasing doses of the essential oils while biting rates decreased with increasing concentrations of the oils. Further, the oil of C. citratus was more potent than that of T. minuta with regard to protection time and biting deterrence. The effective doses at 50% (ED
    Conclusion: The laboratory tests showed that the essential oils of the two plants were highly repellent to adult sand flies, P. duboscqi. Thus, the two essential oils are candidate natural repellents that can be used against P. duboscqi due to their high efficacy at very low doses, hence, the envisaged safety in their use over chemical repellents. It remains to carry out clinical studies on human subjects with appropriate formulations of the oils prior to recommending their adoption for use against the sandflies.
    MeSH term(s) Animals ; Biological Assay/methods ; Cricetinae ; Cymbopogon/chemistry ; DEET/pharmacology ; Dose-Response Relationship, Drug ; Female ; Gas Chromatography-Mass Spectrometry ; Humans ; Insect Control/methods ; Insect Repellents/pharmacology ; Insect Vectors/drug effects ; Insect Vectors/physiology ; Oils, Volatile/isolation & purification ; Oils, Volatile/pharmacology ; Phlebotomus/physiology ; Plant Oils/isolation & purification ; Plant Oils/pharmacology ; Species Specificity ; Tagetes/chemistry
    Chemical Substances Insect Repellents ; Oils, Volatile ; Plant Oils ; DEET (134-62-3)
    Language English
    Publishing date 2017-02-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2413336-X
    ISSN 1756-0500 ; 1756-0500
    ISSN (online) 1756-0500
    ISSN 1756-0500
    DOI 10.1186/s13104-017-2396-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Genetic diversity in Napier grass (Pennisetum purpureum) cultivars: implications for breeding and conservation.

    Wanjala, Bramwel W / Obonyo, Meshack / Wachira, Francis N / Muchugi, Alice / Mulaa, Margaret / Harvey, Jagger / Skilton, Robert A / Proud, Janice / Hanson, Jean

    AoB PLANTS

    2013  Volume 5, Page(s) plt022

    Abstract: Napier grass is an important forage crop for dairy production in the tropics; as such, its existing genetic diversity needs to be assessed for conservation. The current study assessed the genetic variation of Napier grass collections from selected ... ...

    Abstract Napier grass is an important forage crop for dairy production in the tropics; as such, its existing genetic diversity needs to be assessed for conservation. The current study assessed the genetic variation of Napier grass collections from selected regions in Eastern Africa and the International Livestock Research Institute Forage Germplasm-Ethiopia. The diversity of 281 cultivars was investigated using five selective amplified fragment length polymorphism (AFLP) markers and classical population genetic parameters analysed using various software. The number of bands generated was 216 with fragments per primer set ranging from 50 to 115. Mean percentage polymorphic loci was 63.40. Genetic diversity coefficients based on Nei's genetic diversity ranged from 0.0783 to 0.2142 and Shannon's information index ranged from 0.1293 to 0.3445. The Fst value obtained was moderately significant (Fst = 0.1688). Neighbour-joining analysis gave two distinct clusters which did not reflect geographical locations. Analysis of molecular variance showed all variance components to be highly significant (P < 0.001), indicating more variation within (91 %) than between populations (9 %). Results suggested moderate genetic differentiation among Napier grass populations sampled, which could imply a high germplasm exchange within the region. The AFLP markers used in this study efficiently discriminate among cultivars and could be useful in identification and germplasm conservation.
    Language English
    Publishing date 2013-05-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2555823-7
    ISSN 2041-2851
    ISSN 2041-2851
    DOI 10.1093/aobpla/plt022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Genetic diversity in Napier grass (Pennisetum purpureum) cultivars: implications for breeding and conservation

    Wanjala, Bramwel W. / Obonyo, Meshack / Wachira, Francis N. / Muchugi, Alice / Mulaa, Margaret / Harvey, Jagger / Skilton, Robert A. / Proud, Janice / Hanson, Jean

    AoB plants

    Volume v. 5,, Issue no. 0

    Abstract: Napier grass is an important forage for smallholder dairy farms. However, there has been a comparatively low effort to improve Napier grass. It is necessary to strengthen forage breeding programs for development of cultivars with superior traits like. ... ...

    Abstract Napier grass is an important forage for smallholder dairy farms. However, there has been a comparatively low effort to improve Napier grass. It is necessary to strengthen forage breeding programs for development of cultivars with superior traits like. With a high rich gene pool; correct identification of Napier grass accessions is a prerequisite because the existing germplasm information is scanty and cannot be relied upon for crop improvement. Thus the genetic assessment of various Napier grass accessions from the Eastern Africa region is important for correct cultivar identification in order to fully exploit them in crop improvement strategies.
    Keywords gene pool ; dairy farming ; genetic variation ; Pennisetum purpureum ; cultivar identification ; germplasm ; forage ; cultivars
    Language English
    Document type Article
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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