The fire ant Solenopsis invicta is a significant pest that was inadvertently introduced into the southern United States almost a century ago and more recently into California and other regions of the world. An assessment of genetic variation at a diverse set of molecular markers in 2144 fire ant colonies from 75 geographic sites worldwide revealed that at least nine separate introductions of S. invicta have occurred into newly invaded areas and that the main southern U.S. population is probably the source of all but one of these introductions. The sole exception involves a putative serial invasion from the southern United States to California to Taiwan. These results illustrate in stark fashion a severe negative consequence of an increasingly massive and interconnected global trade and travel system.
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http://dx.doi.org/10.1126/science.1198734 | DOI Listing |
Microbiol Resour Announc
January 2025
Biological Control of Pests Research Unit, USDA-ARS, Stoneville, Mississippi, USA.
Deformed wing virus (DWV) can cause a major disease in honeybees worldwide and has been detected in many other arthropods (S. J. Martin and L.
View Article and Find Full Text PDFEcotoxicol Environ Saf
January 2025
School of Tropical Agriculture and Forestry, Hainan University, Danzhou, Hainan 570228, China. Electronic address:
The red imported fire ants (RIFAs) are a globally important invasive pest that severely affects the ecosystem and human health, and its current control is primarily through chemical pesticides. However, the extensive use of chemical pesticides causes environmental problems, and alternative strategies for controlling this pest are being explored. In our study, we aimed to design a deep eutectic solvent (DES)-CaCO system in which RIFAs were used as target insects to increase the lethal activity and behavioural regulation effects on RIFAs via contact and feeding.
View Article and Find Full Text PDFZhongguo Yi Xue Ke Xue Yuan Xue Bao
December 2024
Department of Allergy,Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, National Clinical Research Center for Dermatologic and Immunologic Diseases,Peking Union Translational Medical Center, PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
Hymenoptera venom-sensitized patients may experience systemic reactions,and severe patients may even present life-threatening symptoms such as collapse and syncope.Here we report a case of anaphylaxis triggered by multiple sensitization with Hymenoptera venom.Clinical diagnosis and allergen testing showed that the patient developed anaphylaxis to wasp and/or fire ant venom.
View Article and Find Full Text PDFInsects
November 2024
Biological Control of Pests Research Unit, United States Department of Agriculture-Agricultural Research Service, 59 Lee Road, Stoneville, MS 38776, USA.
The house cricket, (Linnaeus), is often used as a food source for the maintenance of imported fire ants under laboratory rearing. It was found that both red imported fire ants, Buren, and black imported fire ants, Forel, consumed most of the soft tissues of female crickets, but avoided their eggs by disposing of them on refuse piles. Bioassays using freshly collected cricket eggs showed that ants first retrieved eggs into their nests and then discarded them onto the refuse piles.
View Article and Find Full Text PDFBiomolecules
November 2024
Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy.
a South American ant species from the Formicidae family (subfamily Myrmicinae), has recently established a stable settlement in Europe, raising public health concerns due to its venomous stings. The venom of is rich in bioactive molecules, particularly piperidine alkaloids such as solenopsin A and peptides (Sol 1-4). These compounds have been implicated in various health applications, including antimicrobial, anti-inflammatory, and antitumour activities.
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