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Chronic in‑hive exposure to a field‑relevant concentration of Closer™ SC (24% sulfoxaflor) insecticide altered immunological and physiological markers of honey bee foragers (Apis mellifera)

Articles

Sulfoxaflor (SULF), a well-known alternative for the banned neonicotinoids, is not environmentally persistent, yet numerous studies using field-realistic levels have demonstrated its detrimental impact on honey bee colonies. Despite this, even just a limited number of studies have addressed its residue-level effects on the physiological and immunological biomarkers of foraging honey bees in semi-field conditions.…

Sublethal effects of herbicides clethodim, haloxyfop-P-methyl, and their mixture on honey bee health

Articles

Herbicides are the most frequently used pesticides, accounting for more than 60% of all pesticides used in agriculture around the world. Clethodim (CTD) (Vixtol Super® 24% EC), haloxyfop-p-methyl (HFM) (Gallant Super® 10.8% EC), and their mixture (CTD (15%) + HFM (7.5%) (Fine® 22.5% EC) are among the most commonly used post-emergence graminicides in Egypt and worldwide. However,…

Controlling varroa mites infesting honeybees (Apis mellifera L.) Using some essential oils and amitraz under colony conditions

Articles

The biggest difficulty for beekeepers in the globe is the Varroa mite. So, the honey production and the mortality of adult honeybees are damaged by this pest. Therefore, this study tested some essential oils and chemicals (amitraz), for the control integrated on Varroa destructor and affected of (Apis mellifera L.). Five essential oils (garlic oil,…

Antibiotic treatment (Tetracycline) effect on bio-efficiency of the larvae honey bee (Apis mellifera jemenatica)

Articles

Honey bees are important for ecological health, biodiversity preservation, and crop output. Antimicrobials, like Tetracyclines, are commonly used in agriculture, medicine, and beekeeping, bees might be exposed to Tetracycline residues in the environment either directly or indirectly. This study aimed to determine the effect of antibiotic treatment (Tetracycline) effect on the Bio-efficiency of the larvae…

The Insecticide Imidacloprid Decreases Nannotrigona Stingless Bee Survival and Food Consumption and Modulates the Expression of Detoxification and Immune-Related Genes

Articles

Stingless bees are ecologically and economically important species in the tropics and subtropics, but there has been little research on the characterization of detoxification systems and immune responses within them. This is critical for understanding their responses to, and defenses against, a variety of environmental stresses, including agrochemicals. Therefore, we studied the detoxification and immune…

A Spotlight on the Egyptian Honeybee (Apis melliferalamarckii)

Articles

Egypt has an ongoing long history with beekeeping, which started with the ancientEgyptians making various reliefs and inscriptions of beekeeping on their tombs and temples. TheEgyptian honeybee (Apis mellifera lamarckii) is an authentic Egyptian honeybee subspecies utilized inapiculture. A. m. lamarckii is a distinct honeybee subspecies that has a particular body color, size, andhigh levels…

Contact varroacidal efficacy of lithium citrate and its influence on viral loads, immune parameters and oxidative stress of honey bees in a field experiment

Articles

With an almost global distribution, Varroa destuctor is the leading cause of weakening and loss of honey bee colonies. New substances are constantly being tested in order to find those that will exhibit high anti-Varroa efficacy at low doses/concentrations, without unwanted effects on bees. Lithium (Li) salts stood out as candidates based on previous research.…