Khurnpoon, Lampan

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Khurnpoon, Lampan
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Khurnpoon, L.
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lampan.kh@kmitl.ac.th

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    Item type:Publication,
    Insecticidal activity of essential oil formulas and their physiological effects on eggplant
    (2017-05-01)
    Pumnuan, Jarongsak
    ;
    Khurnpoon, Lampan
    ;
    Insung, Ammorn
    This study examined fumigation toxicity of 18 medicinal plant essential oils (EOs) against adult of aphid (Aphid gossypii) and whitefly (Bemisia tabaci). Then, non-target effects of the EO mixtures on physiological changes of eggplant (Solanum melongena) were tested. The insecticidal property and physiological toxicity of the fumigation formulas were also examined and compared to methyl bromide (MB) fumigation. The results showed that the eggplant fumigated with clove (Syzygium aromaticum) and lemon grass (Cymbopogon citratus) EOs mixture at the ratio of 1:3 (Cl1Le3) showed no significant physiological changes when compared to the control treatment. The formula resulted in similarly high mortalities (82-100%) of both insects when compared to MB. However, MB fumigation caused complete senescence appeared before day 3 observations. On the contrary, the eggplant fumigated with Cl1Le3 at 3 μL/L air showed no differences in the physiological changes when compared to the control throughout the 9-day examinations.