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    Tytuł:
    Field evaluation of plant extracts for the control of diamond moth (Plutella xylostella Linnaeus) infesting cabbage (Brassica oleracea Linn)
    Autorzy:
    Odewole, A.F.
    Adebayo, T.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/11513.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    field evaluation
    plant extract
    control
    diamond back moth
    Plutella xylostella
    cabbage
    Brassica oleracea
    deltamethrin
    Tephrosia vogelii
    Zingiber officinale
    Lantana camara
    Opis:
    Cabbage (Brassica oleracea Linn.) is one of the important vegetables grown worldwide. Insect pests have been a major constraint to its production with some reported to have developed resistance to commonly available synthetic insecticides. In order to find alternative control for these pests, field experiments were conducted in the early seasons of 2011 and 2012, to evaluate the efficacy of three plant extracts, Tephrosia vogelli Hooks, Zingiber officinales Rosh and Lantana camara Spanish flag, applied at 5, 10 and 25 % w/v concentrations Delthamethrin (a synthethic insecticide) and an unsprayed plot were included as positive and negative controls respectively. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Mean Data over the two planting seasons were subjected to the analysis of variance and significant means were compared using the least significant difference (L.S.D) at P < 0.05. Z. officinales extract effectively control P. xylostella larvae at all concentrations with 25 % w/v gave the best yield of 0.50 kg/ha while T. vogelii and L. camara extracts were as effective as Deltamethrin at different concentrations and hours on diamondback-moth (P. xylostella) adult The present findings indicated that effective botanicals against Diamondback moth adult and larvae of cabbage can be formulated from extract of T. vogelii, L. camara and Z. officinales at 25 % concentration respectively.
    Źródło:
    International Letters of Natural Sciences; 2014, 11, 2
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative efficacy of plant extracts with synthetic against insect pests of okra (Abelmoschus esculentus L. Monech)
    Autorzy:
    Odewole, A.F.
    Alao, F.O.
    Agboola, A.A.
    Adedapo, B.F.
    Powiązania:
    https://bibliotekanauki.pl/articles/11813.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    comparative efficacy
    plant extract
    insect pest
    okra
    Abelmoschus esculentus
    insecticide
    Podagrica uniformis
    Podagrica sjostedti
    Zenocerus variegatus
    Opis:
    A field study was carried out during the two cropping seasons of okra to investigate the efficacy of plant extracts and synthetic insecticides applied singly and synergistic effect of botanicals with the synthetic insecticide on some insect pests of okra. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Three insect pests of okra (Podagrica uniformis, Podagrica sjostedti and Zenocerous variegatus) were observed on the field. Cypermethrin applied singly and Cypermethrin combined with plant extracts effectively controlled observed insect pests, followed by lone application of plant extracts (L camara, T. vogelii and Z. officinales plant extracts at 1st and 2nd season. Okra yield revealed that both plant extract and Cypermethrin combined with plant extract were not significantly different from one another at first season and at second season Cypermethrin combined with plant extracts performed better than Cypermethrin applied singly. This study indicates that the studied plant extracts can be good synergist for Cypermethrin in controlling field pest of okra.
    Źródło:
    International Letters of Natural Sciences; 2014, 14
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rural farmers’ perceptions, knowledge and management of insect pests of fruit vegetables in Ogbomoso Agricultural Zone of Nigeria
    Autorzy:
    Olaniran, O.A.
    Babarinde, S.A.
    Odewole, A.F.
    Aremu, P.A.
    Popoola, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/10930.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    rural area
    farmer
    perception
    knowledge
    management
    insect pest management
    beetle
    vegetable-like fruit
    Ogbomoso Agricultural Zone
    Nigeria
    Opis:
    Surveys were carried out in five local government areas of Ogbomoso Agricultural Zone Nigeria during planting season in 2010 to investigate rural farmers perceptions and management practices of insect pests of fruit vegetables. The survey involved 150 randomly selected farmers who were interviewed using structured questionnaire. Fruit vegetables planted by the farmers were okra, tomatoes, pepper and garden egg. Reasons given by farmers for cultivating fruit vegetables were significantly favored by age category, educational qualification, and secondary occupation of farmers (x2 = 4.757, P = 0.029). Field insect pests were perceived as the major production constraint to fruit vegetables in this zone. Majority of the farmer estimated 78.4 % rated insect pest as the most serious pest infesting fruit vegetables, the insect pests were grasshopper (Orthoptera), beetles (Coleoptera) and caterpillar (Lepidoptera). Integrated pest management module consisted basically of chemical and cultural control strategies, with weeding, shifting cultivation and crop rotation as main cultural control methods. More than 76.7 % of the farmers make use of cultural control because of unavailability and cost of chemical insecticides. Only 23.3 % had access to chemical insecticides in controlling insect pest of fruit vegetables.
    Źródło:
    International Letters of Natural Sciences; 2014, 20
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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