Examinando por Autor "Adjeiwaa, Ellen Owusu"

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Assessing the insecticidal properties of Gliricidia sepium (Jacq.) Kunt ex Walp., 1842 (Fabales: Fabaceae) and Citrus x paradisi MacFayden, 1837 (Spindales: Rutaceae) on Frankliniella occidentalis (Pergande), 1895 (Thysanoptera: thripidae).
(Universidad EARTH, 2020-12) Adjeiwaa, Ellen Owusu; Kohlmann, Bert
The use of pesticides in the agricultural industry has become a burden on natural ecosystems as it has caused many environmental health risks to people who are exposed to them, even though it does the job of protecting plants from pest infestation. The agricultural industry needs the implementation of a sustainable approach regarding plant protection that is safer for man and the environment and as such, the use of botanical insecticides have been undertaken. A sustainable method to avoid negative health risk and environmental damage is by using plant extracts that have diminished or no effects on the ecosystems. Experiments were conducted to assess the effects of two plant extracts for the control of Frankliniella occidentalis in laboratory and greenhouse bioassays with the aim of determine the treatment with the best effect on F. occidentalis. The treatments that were used in the experiment were Gliricidia sepium, Citrus x paradisi and a commercial insecticide, Winner 6 SC, at different concentrations. The data collected were analyzed at a p-value of 0. 05 using the Duncan test analysis. The survivability was assessed from 24 to 96 hours after treatment application for both laboratory and greenhouse assays. Results indicate that, G. sepium and Citrus x paradisi have the same killing ability as the commercial insecticide Winner 6 Sc, resulting in low survivability after 96 hours of exposure to treatments.