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Optimizing Feeding and Pupation Bioassays to Assess the Effects of Insecticidal and Repellent Treatments on Aethina tumida Larval Development and Pupation Success.
Arch Insect Biochem Physiol
January 2025
Molecular Physiology and Toxicology Laboratory, Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA.
European honey bee (Apis mellifera) colonies are an ideal host to the invasive beetle Aethina tumida, providing a nutrient rich environment that is protected from the elements and facilitates beetle reproduction. Although various management techniques and chemical treatments for A. tumida have been developed, understanding the efficacy of these treatments and techniques is limited.
View Article and Find Full Text PDFUnderstanding the Effects of Three Carbohydrate Feeds on the Health of Apis mellifera by Transcriptome Analysis.
Arch Insect Biochem Physiol
January 2025
Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China.
At present, there is no clear consensus on the impact of carbohydrate feeds on bee colony health, and comprehensive research and evaluation in this context is lacking. To comprehensively and objectively examine the health status of honeybees after consuming those carbohydrates from multiple perspectives, experimental techniques, including high-throughput sequencing of the transcriptome, proboscis extension reflex (PER), and measuring bee growth parameters were employed. This study showed that compared with honey, feeding high fructose syrup (HFS) resulted in a decrease in the survival rate and body weight of bees, while sucrose decreased the learning and memory ability of bees.
View Article and Find Full Text PDFBees on the run: spp. (Microsporidia) in and related products, Italy.
Front Vet Sci
January 2025
Experimental Zooprophylactic Institute of Southern Italy, Portici, Naples, Italy.
Introduction: The decline of the European/western honeybee () population is on account of a plethora of microorganisms, such as and , two microsporidian fungi responsible of nosemosis that affects welfare and production of the bee industry. Accordingly, this study aimed to investigate the presence of both pathogens in bees, pollen and honey from apiaries in Southwestern Italy.
Methods: From March to July 2022 and 2023, apiaries ( = 10) were selected and classified as High Impact Areas (HIAs, = 5) and Low Impact Areas (LIAs, = 5) according to a 5-point environmental risk index based on factors affecting bee health sand related productions.
Exposure of Apis mellifera (Hymenoptera: Apidae) colonies to imidacloprid impairs larval development, promotes oxidative stress in pupae, and induces changes in the midgut of adult bees.
Biol Res
January 2025
Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Paraná, 87020-900, Brazil.
Bees are essential pollinators that contribute to maintaining biodiversity and increasing agricultural production. However, by foraging on agricultural crops, bees may become contaminated with compounds used for pest control. In this study, we exposed bee (Apis mellifera L.
View Article and Find Full Text PDFA Novel Insect Short Neuropeptide sNPF Peptidomimetic Insecticide: Rational Design, Synthesis, and Aphicidal Activity Study.
J Pept Sci
March 2025
Department of Pharmaceutical Engineering, College of Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan Province, China.
Short neuropeptide F (sNPF) is an insect-specific neuropeptide named for its C-terminal phenylalanine. It consists of 6-19 amino acids with a conserved RLRFa structure, regulating feeding, growth, circadian rhythms, and water-salt balance in insects. Its receptor belongs to GPCR-As and binds sNPF to regulate the insect nervous system.
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