Honey bee toxicological responses do not accurately predict environmental risk of imidacloprid to a solitary ground-nesting bee species

Tai, Felicia Kueh; Pattemore, David E.; Jochym, Mateusz; Beggs, Jacqueline R.; Northcott, Grant L.; Mortensen, Ashley N.

doi:10.1016/j.scitotenv.2022.156398

Cited by 8 publications

(8 citation statements)

References 22 publications

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“…Considering the 24-h LD50 on a per bee basis obtained in our toxicological test (Table 2), females of C. analis are 2.1-fold more sensitive to oral exposure to dimethoate than A. mellifera, 5-fold more sensitive than the solitary bee O. lignaria (Ladurner et al, 2005), and 8.5-fold more sensitive than the bumblebee B. terrestris (Marletto et al, 2003). Centris analis showed a similar LD50 value to the native New Zealand solitary, ground-nesting bee Leioproctus paahaumaa (Figure 5A; Tai et al, 2022). However, taking body weight into account, females of C. analis were more sensitive than L. paahaumaa (Figure 5B) and 1.16-fold more sensitive than A. mellifera.…”

Section: Resultsmentioning

confidence: 67%

“…A decrease in the consumption of food containing dimethoate was also reported by Yang et al (2019) in honeybees ( A. mellifera and Apis cerana ) exposed to 1 ng/µl of dimethoate. Dimethoate is a highly toxic organophosphate pesticide to bees (Tai et al, 2022; Waller et al, 1984) that acts in the nervous system through the inhibition of acetylcholinesterase (Christen et al, 2019). Organophosphate pesticides can lead to physiological and motor function alterations (Pashte & Patil Shivshankar, 2018; Williamson et al, 2013), which can explain the inability or difficulty of bees in moving toward the feeder.…”

Section: Resultsmentioning

confidence: 99%

“…For example, for the insecticide dimethoate, the solitary bee L. paahaumaa showed similar sensitivity to A. mellifera . However, based on the LD50 value per bee, when exposed to the insecticide imidacloprid (a systemic neonicotinoid) L. paahaumaa proved to be 36‐fold more sensitive from oral exposure and 194‐fold more sensitive than A. mellifera when considering contact exposure (Tai et al, 2022). Those values show that, in this case, the safety factor was not sufficient to protect this species.…”

Section: Resultsmentioning

confidence: 99%

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Sensitivity of the Neotropical Solitary Bee Centris analis F. (Hymenoptera, Apidae) to the Reference Insecticide Dimethoate for Pesticide Risk Assessment

Tadei,

Menezes‐Oliveira,

Silva

et al. 2023

Enviro Toxic and Chemistry

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Currently, only Apis mellifera is used in environmental regulation to evaluate the hazard of pesticides to pollinators. The low representativeness of pollinators and bee diversity in this approach may result in insufficient protection for the wild species. This scenario is intensified in tropical environments, where little is known about the effects of pesticides on solitary bees. We aimed to calculate the medium lethal dose (LD50) and medium lethal concentration (LC50) of the insecticide dimethoate in the Neotropical solitary bee Centris analis, a cavity‐nesting, oil‐collecting bee distributed from Brazil to Mexico. Males and females of C. analis were exposed orally to dimethoate for 48 h under laboratory conditions. Lethality was assessed every 24 h until 144 h after the beginning of the test. After the LD50 calculation, we compared the value with available LD50 values in the literature of other bee species using the species sensitivity distribution curve. In 48 h of exposure, males showed an LD50 value 1.33 times lower than females (32.78 and 43.84 ng active ingredient/bee, respectively). Centris analis was more sensitive to dimethoate than the model species A. mellifera and the solitary bee from temperate zones, Osmia lignaria. However, on a body weight basis, C. analis and A. mellifera had similar LD50 values. Ours is the first study that calculated an LD50 for a Neotropical solitary bee. Besides, the results are of crucial importance for a better understanding of the effects of pesticides on the tropical bee fauna and will help to improve the risk assessment of pesticides to bees under tropical conditions, giving attention to wild species, which are commonly neglected. Environ Toxicol Chem 2023;00:1–10. © 2023 SETAC

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Section: Resultsmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sensitivity of the Neotropical Solitary Bee Centris analis F. (Hymenoptera, Apidae) to the Reference Insecticide Dimethoate for Pesticide Risk Assessment

Tadei,

Menezes‐Oliveira,

Silva

et al. 2023

Enviro Toxic and Chemistry

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“…Imidacloprid insecticide could decrease immunity to death in honeybee Apis mellifera after topical exposure (Chen et al 2021) and was highly toxic to Leioproctus paahaumaa (Tai et al 2022). Fipronil insecticide reported to cause death after 48 hours of exposure on the stingless bee Melipona scutellaris (Lourenco et al 2012a) and its residue at 3-24 hours caused the highest death to A. mellifera ligustica (Keshlaf et al 2013).…”

Section: Discussionmentioning

confidence: 99%

The Toxicity Test of Synthetic Insecticides on Tetragonula laeviceps (Apidae: Meliponini)

Hasanah,

Mubin,

Sartiami

et al. 2023

HAYATI J Biosci

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Intense insecticide application is thought to cause a decline in bee colonies worldwide. Bees are effective pollinators in increasing the production of agricultural commodities. The stingless bee Tetragonula laeviceps (Apidae: Meliponini) is widely cultivated and found around plantations. The insecticides used in the toxicity test were imidacloprid 200 g/L, fipronil 50 g/L, lambda-cyhalothrin 25 g/L, profenofos 500 g/L, and chlorantraniliprole 50 g/L followed by a semi-field test using imidacloprid, fipronil, and profenofos insecticides on the cucumber plant. The LC50 value showed that exposure to imidacloprid, fipronil, and profenofos insecticides caused toxic effects on T. laeviceps by contact and orally. Lambda-cyhalothrin was found harmful on contact exposure, in contrast, chlorantraniliprole was harmful through oral. Classification of insecticide toxicity based on LD50 contact for imidacloprid, fipronil, lambda-cyhalothrin, and profenofos were very toxic and needed a risk assessment. However, chlorantraniliprole was classified as moderately toxic and low risk. In semi-field test results, imidacloprid and fipronil insecticides caused a significant decrease in the leave-return and bee-visiting activity on cucumber flowers. These insecticides also produced a low average yield of fruit weight. Insecticide application can affect the role of T. laeviceps as the pollinator which impacts the production of agricultural commodities.

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“…Organophosphorus pesticides have significantly controlled agricultural pests and diseases due to their specificity, broad‐spectrum applicability and high efficiency in target organisms (Kaushal et al, 2021; Ndiath, 2019; Zheng et al, 2020). However, the continuous insecticide application has frequently raised environmental problems and developed insecticide resistance to insect pests (Horowitz et al, 2020; Kueh Tai et al, 2022; Lin et al, 2022; Lokeshwari et al, 2016). The thickening or alteration of the cuticle composition, improved drug excretion and mutation of insecticide target sites contribute to increased insect pesticide resistance (Balabanidou et al, 2018; Casida & Durkin, 2013; Wan et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The gut bacterium Serratia marcescens mediates detoxification of organophosphate pesticide in Riptortus pedestris by microbial degradation

Xia

Chen

et al. 2023

J Applied Entomology

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Organophosphate insecticides have been widely used in agriculture to control insect pests and raised growing problems including insecticide resistance. According to recent studies, microbial symbionts play important roles in developing insecticide resistance. The bean bug Riptortus pedestris is a notorious pest of leguminous crops, harbouring diverse microorganisms in their insect midguts. However, the potential biological roles of many gut‐associated bacteria are largely unknown. In this study, we isolated a bacterial strain from the midgut of R. pedestris and identified it as Serratia marcescens based on its morphological characteristics and the phylogenetic analysis of the 16S rRNA gene sequence. A halo of phosphorus‐solubilizing bacteria was observed on a medium containing lecithin and an organophosphorus insecticide dimethoate. Subsequently, the microbial degradation of dimethoate was determined using Gas Chromatography with Mass Spectroscopy (GC–MS). Further analysis indicated that the S. marcescens contained organophosphorus‐degrading MBL‐fold metallo‐hydrolase gene. Additionally, we discovered that the bacterium could colonize the insect midgut stably and enhance the host survivorship when exposed to dimethoate. Our results revealed that an insect gut‐associated bacterium could degrade organophosphorus compounds, thereby reducing related insecticide toxicity to the insect hosts. These findings provided further insights into the host‐microbiota interactions underpinning the development of insecticide resistance.

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Honey bee toxicological responses do not accurately predict environmental risk of imidacloprid to a solitary ground-nesting bee species

Cited by 8 publications

References 22 publications

Sensitivity of the Neotropical Solitary Bee Centris analis F. (Hymenoptera, Apidae) to the Reference Insecticide Dimethoate for Pesticide Risk Assessment

Sensitivity of the Neotropical Solitary Bee Centris analis F. (Hymenoptera, Apidae) to the Reference Insecticide Dimethoate for Pesticide Risk Assessment

The Toxicity Test of Synthetic Insecticides on Tetragonula laeviceps (Apidae: Meliponini)

The gut bacterium Serratia marcescens mediates detoxification of organophosphate pesticide in Riptortus pedestris by microbial degradation

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