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Recently, spotted wing Drosophila, , is globally prevalent and causes agricultural losses to many fruits. To export Korean strawberry, methyl bromide fumigation is required to remove infestations, but Korean strawberry farmers are worried about fruit damage because methyl bromide can cause phytotoxicity on fresh commodities. In this report, we assessed the efficacy and phytotoxicity of single and successive application of methyl bromide and cold treatment on an export variety of strawberry to reduce fruit damage. The currently recommended dosage of methyl bromide, 40 g/m for 3 h at 18 °C, was enough to control all stages of without phytotoxicity. A dosage of 20 g/m of methyl bromide treatment for 3 h, followed by 1 d of cold (0 °C) treatment, showed 100% mortality in all growth stages of without fruit damage. Successive application of methyl bromide and cold treatment shows potential as a method of decreasing phytotoxicity and reducing the use of methyl bromide for environmental considerations.
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http://dx.doi.org/10.3390/insects12110990 | DOI Listing |
PLoS One
July 2025
Department of Bioenvironmental Chemistry, Jeonbuk National University, Jeonju, Republic of Korea.
Methyl bromide (MB) is a potent fumigant used to control pests in soil and agricultural products. As an ozone-depleting substance, MB has been largely replaced by safer alternatives. MB is highly toxic to humans and has been shown to adversely affect asymptomatic workers' central and autonomic nervous systems and vascular health.
View Article and Find Full Text PDFPest Manag Sci
July 2025
Department of Entomology and Nematology, Ft. Lauderdale Research and Education Center, University of Florida, Institute of Food and Agricultural Sciences, Davie, FL, USA.
Background: Symbiotic bacteria from the genera Xenorhabdus and Photorhabdus associated with Steinernema and Heterorhabditis entomopathogenic nematodes (EPNs), respectively, show nematicidal properties against plant-parasitic nematodes. This study investigated the diversity of EPNs in Floridian turfgrass systems and the effect of secondary metabolites of their symbiotic bacteria against grass root-knot (Meloidogyne graminis) and sting (Belonolaimus longicaudatus) nematodes, major pests in turfgrass systems.
Results: Six isolates of H.
J Econ Entomol
August 2025
Institute of Quality & Safety Evaluation of Agricultural Product, Kyungpook National University, Daegu, Republic of Korea.
The increase in nursery plant trade has heightened the risk of invasions of exotic pests, such as mealybugs and nematodes. In this study, we first evaluated the feasibility of using the currently approved methyl bromide (MB) treatment for imported nursery plants (IMP) against the longtailed mealybug, Pseudococcus longispinus. We then assessed ethyl formate (EF) fumigation as a potential MB-alternative treatment and tested 2 nematicides against the root-lesion nematode, Pratylenchus penetrans C.
View Article and Find Full Text PDFInsects
April 2025
Department of Plant Quarantine, Animal and Plant Quarantine Agency (APQA), Gimcheon 39660, Republic of Korea.
Since the use of methyl bromide has been prohibited globally because of environmental concerns, several alternative fumigants have been newly developed and applied to fresh products. However, single treatment with a methyl bromide alternative fumigant cannot completely replace methyl bromide treatment for some products because of issues associated with long treatment times and phytotoxicity. In this study, we compared the mortality of two agricultural pests, and , after single treatment with methyl bromide and combined application of methyl bromide and cold treatment to confirm the synergistic effects of chemical and physical treatments.
View Article and Find Full Text PDFPest Manag Sci
September 2025
College of Plant Protection, Northwest A & F University, Yangling, China.
Background: Root-knot nematodes (Meloidogyne incognita) are one of the main pathogens affecting agricultural production. Conventional fumigants like methyl bromide have been phased out because of environmental risks, while alternatives face challenges of soil toxicity and resistance evolution. This study aims to develop a novel microencapsulated dual-agent system combining allyl isothiocyanate (AITC) and avermectin B (AVB) for sustainable nematode control.
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