Passara, Hataichanok

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Passara, Hataichanok
Alternative Name
Passara, H.
Main Affiliation
Email
hataichanok.pa@kmitl.ac.th

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    Impact of botanical essential oils on pupation and survival of Musca domestica L.
    (2026-05-01)
    Moungthipmalai, T.
    ;
    Sriboonjit, N.
    ;
    Khuendee, P.
    ;
    Phunglakchai, J.
    ;
    Thongsaiklaing, M.
    Among the tested botanical extracts, Illicium verum (star anise) essential oil at 10% demonstrated the highest efficacy in disrupting normal pupal development. Only 65.00% of individuals successfully emerged as fully developed adults after a 10-day exposure period. A notable proportion exhibited transitional deformities, particularly malformed pupal-adult intermediates, indicating interference with metamorphic progression. In comparison, cypermethrin, a commonly applied synthetic insecticide at the same concentration, resulted in a lower mortality rate of 39.67% under identical experimental conditions. The superior performance of star anise oil highlighted its potential as a plant-derived alternative for insect control. These findings suggested that the incorporation of such natural products into integrated pest management strategies may reduce dependence on conventional synthetic chemicals.
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    Adulticidal activity of star anise, turmeric, cloves and combinations against houseflies
    (2025-01-01)
    Sinthusiri, J.
    ;
    Soonwera, M.
    ;
    Puwanard, C.
    ;
    Passara, H.
    ;
    Thongsaiklaing, T.
    The small droplet size could increase the absorbed ingredients and high stability. The star anise nanoemulsion was determined optimum efficacy, with a 1% concentration resulting in the highest knockdown and mortality rate of 100%. Its KT<inf>50</inf> and mortality effective values were 28 min and 36 times, respectively. Furthermore, the adult stage of houseflies is found to be susceptible to star anise nanoemulsion. In contrast, cypermethrin was less toxic to it, with a high KT<inf>50</inf> and resistance to adult houseflies. Consequently, the star anise nanoemulsion could be developed into an efficient and safe environment for controlling housefly populations.
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    Antifungal efficacy of stingless bee honey extracts against a black mould causing pathogen Lasiodiplodia spp
    (2026-03-01)
    Datumada, H.
    ;
    Niyomdecha, A.
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    Passara, H.
    ;
    Ramdoung, T.
    ;
    Sudwisai, W.
    Fungal species causing the black sooty mould were isolated from fruit peels and subjected to molecular genetic analysis. The nucleotide sequences were found to be 100% identical to the fungus Lasiodiplodia iranensis. Results from testing the antifungal properties of stingless bee honey extracts showed that the extract from the H. itama species exhibited the highest inhibitory effect, followed by T. pagdeni, G. thoracica, and T. fuscobalteata. The average inhibition values were 21.43+1.27, 18.54+1.50, 17.51+1.76, and 17.18+0.91 mm., respectively.
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    Plant essential oils, trans-anethole and eugenol, for housefly knockdown and mortality
    (2025-03-01)
    Sittichok, S.
    ;
    Passara, H.
    ;
    Sinthusiri, J.
    ;
    Soonwera, M.
    ;
    Thongsaiklaing, T.
    The knockdown and mortality of some compounds from natural oils (trans-anethole, eugenol and a combination of trans-anethole and eugenol) against adult houseflies (Musca domestica) compared with cypermethrin was investigated. The knockdown and mortalities were highest at 100% of 1% trans-anethole with KT50= 31 min and LT50 = 31 min. The mortality index of trans-anethole was 82.1 times that of cypermethrin. In contrast, 1% eugenol had knockdown and mortality was 36% and 0.5% trans-anethole + 0.5% eugenol had knockdown and mortality of 68%, with mortality indexes of 1.6 and 3.2 times versus cypermethrin. The trans-anethole high toxicity and low residue made it a superior control for houseflies.
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    Larvicidal efficacy and morphological abnormalities induced by plant essential oils against housefly (Musca domestica L.)
    (2026-03-01)
    Passara, H.
    ;
    Sittichok, S.
    ;
    Moungthipmalai, T.
    ;
    Laosinwattana, C.
    ;
    Thongsaiklaing, M.
    The results showed that the lowest complete pupation rate was 43.67%, indicating a significant inhibition of normal metamorphosis. Additionally, 56.33% of third-instar larvae were classified as malformed larvae (ML), dying before pupation and exhibiting severe morphological and physiological abnormalities. These findings suggest that the star anise nanoemulsion interferes with key developmental pathways, preventing larvae from reaching the pupal stage. Due to its high effectiveness and plant-based origin, this nanoformulation offers a promising, environmentally friendly alternative to conventional chemical insecticides. It has potential for further development into a natural larvicidal agent for use in integrated pest management (IPM) strategies targeting housefly populations. Future research should explore the underlying mechanisms of action and assess the efficacy and safety of this nanoemulsion under real-world conditions to support its application in sustainable vector control.