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Author: search.filters.author.Pumnuan, J.Subject: search.filters.subject.Antifeedant

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    The effectiveness of star anise nanoemulsion and chemical insecticide for controlling of beet armyworm
    (2024-05-01)
    Passara, H.
    ;
    Pumnuan, J.
    ;
    Thongsaiklaing, T.
    ;
    Thipmanee, K.
    The effectiveness of star anise (Illicium verum) nanoemulsion and deltamethrin (chemical insecticide) was tested with beet armyworm (Spodoptera exigua) to evaluate their mortality, antifeedant, and growth inhibition effects at proper concentrations. As a result, at the obtained highest effectiveness, star anise nanoemulsion required 0.35% concentration for the maximum effectiveness with 100% mortality, antifeedant and growth inhibition effects against beet armyworm, when compared with the control (Tween20 and water), while deltamethrin exhibited a lower rate. Therefore, star anise nanoemulsion seem to be utilized as a highly effective and environmentally friendly insecticide to control beet armyworm.
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    Insecticidal efficiency of plant essential oil nanoemulsion formulas against Spodoptera exigua
    (2024-01-01)
    Passara, H.
    ;
    Pumnuan, J.
    ;
    Thongsaiklaing, T.
    ;
    Thipmanee, K.
    The findings revealed that the nEO formula of I. verum and C. longa demonstrated optimal effectiveness, with a concentration of 0.35% resulting in the highest mortality rate of 43.3%, 100% antifeedant effect and 85.0% growth inhibition activities in pupae. Additionally, a concentration of 0.25% led to 100% growth inhibition activities in adults. Consequently, the nEO formulas of I. verum and C. longa promise for the future development of botanical insecticides targeting the control of S. exigua.