Browsing by Author "Rungkiat Kawpet"

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    Development of an IFOAM-compliant Prototype for Organic Chili Pepper Production: Innovations in Sustainable Cultivation and Pest Management
    (University of Kassel, 2025) Rungkiat Kawpet; Ravee Ganeshaborirak; R. Ganeshaborirak; Program in Agriculture, Faculty of Agricultural Production, Mae Jo University, Thailand; email: raveeganesha@gmail.com
    The International Federation of Organic Agriculture Movement (IFOAM) indicates that the detrimental impact of pesticide residues in chilli pepper production for consumption prompted the creation of a prototype approach for cultivating organic chilli peppers to safeguard safety and human health. Researchers conducted an inquiry on a chilli pepper crop in Lampang province and examined the simulation of organic chilli growing in an IFOAM-certified region at the Biological Control Technology Learning Centre, Maejo University, Chiang Mai, Thailand. The analysis effectively optimised organic chilli pepper output to comply with regulations by meticulous selection of planting materials, fertilisers, and pest management techniques. The research was carried out in Lampang province and at the IFOAM-certified site at Maejo University, Chiang Mai, Thailand. The inquiry effectively adhered to organic standards through the selection of planting materials, fertilisers, and pest management techniques. The prototype technique involved utilising certified seeds, organic fertilisers, Trichoderma sp. for pest management, and natural predators such as stink bugs. The objective was to attain a plant density of 5,000-6,000 plants per rai. Researchers controlled insect pests by employing stink bugs to manage chilli pepper cutworms 7–14 days post-transplantation, thereafter applying Beauveria bassiana and neem extract solution at 21 and 28 days after transplantation, respectively. The prototype yielded chilly paper at 1,680 ± 4.27 kg/rai, comparable to the regular manufacturing schedule. The study found a favourable correlation between pest control approach and pest epidemic number (R2 = 0.86) as well as plant disease (R2 = 0.53). Simultaneously, the quantity of insect epidemics and plant diseases had a positive link with crop yield, with R2 values of 0.65 and 0.67, respectively. The research established a prototype that presents a sustainable, pesticide-free production technique for chilli peppers, promoting the green economy and furnishing a practical guidance for farmers to implement organic methods. © (2025), (University of Kassel). All rights reserved.
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    Role of Insect Natural Enemies Integrated Pest Management of Citrus Insect Pests
    (University of Missouri, 2024) Rungkiat Kawpet; Ravee Ganeshaborirak; R. Ganeshaborirak; Faculty of Agricultural Production, Mae Jo University, Thailand; email: raveeganesha@gmail.com
    This study aimed to evaluate species diversity and population dynamics of citrus insect pests and their associated natural enemies in the Chiang Mai and Lamphang provinces. Additionally, it examined the biology and feeding potential of selected natural enemies to support the development of an Integrated Pest Management (IPM) programme. Analysis of population dynamics identified the lime butterfly (Papilio demoleus, Lepidoptera: Papilionidae), citrus leaf miner (Phyllocnistis citrella, Lepidoptera: Phyllocnistidae), yellow citrus aphid (Aphis citricola, Hemiptera: Aphididae), and thrips (Thrips spp., Thysanoptera: Thripidae) as major insect pests affecting citrus crops year-round. Among the 26 species of natural enemies observed, the stink bug Eocanthecona furcellata (Hemiptera: Pentatomidae), assassin bug Sycanus collaris (Hemiptera: Reduviidae), and green lacewing Mallada basalis (Neuroptera: Chrysopidae) emerged as potential predators for augmentative biological control of key pests. Species diversity was found to play a critical role in sustainable pest management strategies, as evidenced by a strong positive correlation (r = 0.82) between pest populations and their natural enemies. The feeding efficacy of the three selected predators was also assessed. Eocanthecona furcellata and Sycanus collaris demonstrated high potential in suppressing major lepidopterous pests, with feeding rates of 5.62±1.33 and 4.25±2.14 caterpillars per day, respectively. Conversely, Mallada basalis exhibited significant potential for controlling leaf-sucking pests, including aphids, whiteflies, scale insects, and thrips. The study thus underscores the biological and predatory potential of these natural enemies, advocating their use in IPM programmes to manage citrus pests effectively. © 2024 AgBioForum