The effects of field-realistic doses of imidacloprid on Melipona quadrifasciata (Apidae: Meliponini) workers

Brito, Pedro Vale de Azevedo; Elias, Marcos; Silva-Neto, Carlos de Melo e; Sujii, Edison Ryoiti; Silva, Daniela; Gonçalves, Bruno Bastos; Franceschinelli, Edivani Villaron

doi:10.1007/s11356-020-08530-9

Cited by 11 publications

(9 citation statements)

References 46 publications

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“…Other studies have shown that imidacloprid interferes with the Cerrado native bees' choice of food source, motility and rate of food consumption when administered in sublethal doses (e.g. Melipona quadrifasciata, Brito et al, 2020). This is probably due to the neurotoxic effects of neonicotinoids which impact bees' learning ability to recognize floral stimuli (Muth et al, 2019).…”

Section: Effect Of Imidacloprid Application On Bee Visitsmentioning

confidence: 99%

“…Despite this, bees consume less food contaminated by imidacloprid (Brito et al, 2020;Kessler et al, 2015). Brito et al (2020) suggested that the reduction in food consumption is associated with the insecticide action in the nervous system.…”

Section: Effect Of Imidacloprid Application On Bee Visitsmentioning

confidence: 99%

“…Nevertheless, there is still a need for further studies on the impacts of neonicotinoids on Brazilian bees. While there are some studies on bee health (Ahmed et al, 2023;Brito et al, 2020;Faucon et al, 2005), foraging ability (Garbuzov et al, 2015;Stanley et al, 2016) and other behaviours (Decourtye et al, 2004(Decourtye et al, , 2005Stanley et al, 2016), the effect of neonicotinoids on bee flower visitation pattern and the reproductive success of a given plant is rarer and likely to depend on the assemblage of pollinators present in the area, being species more susceptible to some pesticides than others. Indeed, most studies on the topic focus on a few species of bee species such as Apis mellifera L. (e.g.…”

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confidence: 99%

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The effects of pesticides on tomato pollinators depend on application practices and floral visitor assemblage

Franceschinelli,

Bergamini,

Paniago

et al. 2023

J Applied Entomology

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Pesticide use affects biodiversity and ecosystem service provision. Yet, such effects may vary between pesticides, dosage, application timing and pollinator assemblage in the study area. Understanding such diversity of effects is essential to enable integrated pest management practices that minimize negative impacts on pollinators. Here, we use a controlled experiment to compare different strategies of pesticide application in tomato crops: no application, low‐intensity applications (every 7 days) and high‐intensity application (every 3–4 days) with the last being the usual practice used by farmers in the study region. We focus on imidacloprid that is a neonicotinoid insecticide commonly used in Brazil. We show the negative effects of imidacloprid on the pollinator visitation rate of tomato flowers varied between flower visitor species. While the bee Paratrigona lineata was negatively affected by the imidacloprid application, no effects were detected when analysing all other bees as a group, indicating a null net effect. Although some studies have shown this insecticide is extremely harmful to bees' health, others showed that some bees do not avoid it, which may explain our results. However, the visitation rate recovery for P. lineata was only detected in the less than the more intensive treatment after imidacloprid applications ceased. The fact that no differences in fruit production were detected between treatments (including control blocks) could result from a null net effect of the negative effects on pollinators and positive effects on pest control. Further studies would be needed to disentangle the two effects.

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Section: Effect Of Imidacloprid Application On Bee Visitsmentioning

confidence: 99%

Section: Effect Of Imidacloprid Application On Bee Visitsmentioning

confidence: 99%

mentioning

confidence: 99%

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The effects of pesticides on tomato pollinators depend on application practices and floral visitor assemblage

Franceschinelli,

Bergamini,

Paniago

et al. 2023

J Applied Entomology

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“…Different levels of pesticide sensitivity among different regions may be correlated with environmental factors, such as climate conditions [ 29 ], processes of breeding [ 30 ], as well as individual differences [ 31 , 32 ]. The level of imidacloprid residue in honey bee bread and wax varies among different areas, from 19.7 ppb to 912 ppb [ 33 ]. The concentrations of imidacloprid in dead bees vary from 12 to 223 ng/g dead bee [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Chronic Effects of Imidacloprid on Honey Bee Worker Development—Molecular Pathway Perspectives

Chen

Tzeng

Yang

2021

IJMS

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Sublethal dosages of imidacloprid cause long-term destructive effects on honey bees at the individual and colony levels. In this review, the molecular effects of sublethal imidacloprid were integrated and reported. Several general effects have been observed among different reports using different approaches. Quantitative PCR approaches revealed that imidacloprid treatments during the adult stage are expressed as changes in immuneresponse, detoxification, and oxidation-reduction response in both workers and queens. In addition, transcriptomic approaches suggested that phototransduction, behavior, and somatic muscle development also were affected. Although worker larvae show a higher tolerance to imidacloprid than adults, molecular evidence reveals its potential impacts. Sublethal imidacloprid treatment during the larval stage causes gene expression changes in larvae, pupae, and adults. Transcriptome profiles suggest that the population and functions of affected differentially expressed genes, DEGs, vary among different worker ages. Furthermore, an early transcriptomic switch from nurse bees to foragers was observed, suggesting that precocious foraging activity may occur. This report comprehensively describes the molecular effects of sublethal dosages of imidacloprid on the honey bee Apis mellifera. The corresponding molecular pathways for physiological and neurological responses in imidacloprid-exposed honey bees were validated. Transcriptomic evidence suggests a global and sustained sublethal impact of imidacloprid on honey bee development.

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“…Thus, during the pollination activity, stingless bees can also be exposed directly or indirectly to these products (Talebi et al 2008;Mullin et al 2010), directly through the contact of the body of the insect with chemical molecules suspended in the air and indirectly through the ingestion of pesticide residues present in pollen, nectar, or water (Girolami et al 2009;Johnson et al 2010). Several studies have demonstrated the occurrence of serious lethal and sublethal effects in these native bees species exposed to insecticides (Tomé et al 2015;Pitts-Singer and Barbour 2016;Dorneles et al 2017;Prado-Silveira et al 2018;Brito et al 2020;Padilha et al 2020); however, little information on most of the species is available.…”

Section: Introductionmentioning

confidence: 99%

Effects of insecticides used in strawberries on stingless bees Melipona quadrifasciata and Tetragonisca fiebrigi (Hymenoptera: Apidae)

Piovesan

Padilha

Morais

et al. 2020

Environ Sci Pollut Res

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The use of pesticides is considered one of the most important threats to pollinators, especially since they are widely used in agriculture for pest control. In the last years, several studies have reported severe secondary effects on various bee species, including exotic and native bees. In this study, lethal (mortality) and sublethal (locomotor activity) effects of insecticides and acaricides used in strawberries in Brazil (abamectin, novaluron, spinetoram, and thiamethoxam) were evaluated on the native stingless bees Melipona quadrifasciata and Tetragonisca fiebrigi. The results showed that the effects varied significantly according to the pesticide, type of exposure (oral or topical), and bee species. Through oral exposure, M. quadrifasciata was more susceptible to all insecticides except for abamectin, while in topical exposure, T. fiebrigi was more sensitive. Thiamethoxam followed by spinetoram and abamectin were the most lethal, regardless of species or exposure route; novaluron was not harmful at the highest tested dose. The locomotor activity of bees was altered in the presence of sublethal doses (LC 10 and LC 50 ) of all insecticides. Spinetoram and abamectin can be as much as toxic as thiamethoxam against M. quadrifasciata and T. fiebrigi in laboratory experiments. These findings should be confirmed in field experiments to define possibilities to combine pest control and pollinator management. In crops like strawberries, the selectivity of native pollinators should be considered.

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The effects of field-realistic doses of imidacloprid on Melipona quadrifasciata (Apidae: Meliponini) workers

Cited by 11 publications

References 46 publications

The effects of pesticides on tomato pollinators depend on application practices and floral visitor assemblage

The effects of pesticides on tomato pollinators depend on application practices and floral visitor assemblage

Chronic Effects of Imidacloprid on Honey Bee Worker Development—Molecular Pathway Perspectives

Effects of insecticides used in strawberries on stingless bees Melipona quadrifasciata and Tetragonisca fiebrigi (Hymenoptera: Apidae)

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