Sublethal and transgenerational effects of six insecticides on Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)

Li, Jianying; Liu, Jin; Chi, Baojie; Chen, Peng; Liu, Yongjie

doi:10.1016/j.aspen.2021.04.010

Cited by 11 publications

(6 citation statements)

References 52 publications

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“…The high level of resistance to various insecticides of B. dorsalis in different regions is associated with their indiscriminate use 3 . A previous study indicates that the sublethal dose of insecticides could significantly influence the lifespan and fecundity of adult B. dorsalis , which might induce ‘hormesis’ phenomena and lead to a resurgence of pests 4 . The mechanism underlying this tolerance to low concentrations of insecticides remains unclear, which makes it more difficult to control.…”

Section: Introductionmentioning

confidence: 99%

Identification and characterization of UDP‐glycosyltransferase genes and the potential role in response to insecticides exposure in Bactrocera dorsalis

Chen

Zhang

Guo

et al. 2022

Pest Management Science

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BACKGROUND The oriental fruit fly, Bactrocera dorsalis (Hendel) is a worldwide pest damaging a wide range of hosts. Due to the long‐term indiscriminate use of insecticides, B. dorsalis has developed serious resistance to several insecticides. UDP‐glycosyltransferases (UGTs) are secondary metabolic enzymes involved in biotransformation and play an important role in the metabolism of plant secondary metabolites and synthetic insecticides in insects. Thus, we suspect that UGTs in B. dorsalis play an important role in insecticide tolerance. RESULTS In this study, 31 UGT genes were identified in the genome of B. dorsalis, belonging to 13 subfamilies. Real‐time quantitative polymerase chain reaction (RT‐qPCR) results revealed that 12 UGT genes were highly expressed in the antennae, midgut, Malpighian tubule and fat body. The mRNA expressions of 17 UGT genes were up‐regulated upon exposure to λ‐cyhalothrin, imidacloprid, abamectin and chlorpyrifos. Knockdown of the selected five UGT genes (BdUGT301D2, BdUGT35F2, BdUGT36K2, BdUGT49D2, BdUGT50B5) by RNA interference increased the mortality of B. dorsalis from 9.29% to 27.22% upon exposure to four insecticides. CONCLUSION The abundance of UGTs in B. dorsalis is similar to other insect species, and 12 out of 31 UGTs were specifically expressed in metabolic tissues, suggesting a key role in detoxification. Down‐regulation of five selected UGT genes increased the susceptibility of B. dorsalis to various insecticides, indicating that UGTs may play an important role in tolerance of B. dorsalis to multiple insecticides. © 2022 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Identification and characterization of UDP‐glycosyltransferase genes and the potential role in response to insecticides exposure in Bactrocera dorsalis

Chen

Zhang

Guo

et al. 2022

Pest Management Science

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“…Carvacrol significantly reduced the adult emergence rate in Musca domestica in contact toxicity assays [ 50 ]. On the other hand, the fumigant and larval toxicities of essential oils and their compounds were much lower compared to phosphine against B. tau (LD 50 = 0.40 μg/insect) [ 51 ] and Emamectin benzoate (LC 50 = 0.943 mg/L) [ 52 ] or Spinetoram ( F 4,20 = 67.569, p < 0.01) against C. capitata [ 53 ] in positive control.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, despite the diet, limonene was one of the most toxic EOCs that caused substantial toxicity in adult medflies, with males being more sensitive than females [ 40 ]. However, the toxicity of EOCs was less than acetamiprid (LC 50 = 0.448 mg/L) or chlorpyrifos (LC 50 = 0.957 mg/L) against B. dorsalis [ 52 ] in positive control.…”

Section: Discussionmentioning

confidence: 99%

Toxicity of Some Essential Oils Constituents against Oriental Fruit Fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)

Jaffar

2022

Insects

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The massive use of synthetic pesticides to manage agricultural pests results in environmental pollution and health hazards. The secondary plant metabolites, which are majorly dominated by terpenoids, have the potential to be developed into novel alternatives to synthetic chemicals. Therefore, in our current investigation, six majorly dominated essential oil constituents were evaluated for their toxicity against adults and immature stages of oriental fruit flies, Bactrocera dorsalis, a worldwide fruit pest. The results indicated that carvacrol was the most toxic essential oil constituent (EOC) to adult flies, with LC50 of 19.48 mg/mL via fumigant assay, followed by thujone 75% mortality via ingestion toxicity test against adult fruit flies. Similarly, when larvae were dipped in different concentrations of EOCs, carvacrol appeared as the most toxic EOC with the lowest LC50 (29.12 mg/mL), followed by (−)-alpha-pinene (26.54 mg/mL) and (R)-(+)-limonene (29.12 mg/mL). In the oviposition deterrence tests, no egg was observed on oranges seedlings treated with 5% of each EOC (100% repellency). Regarding the repellency assay, a significantly higher number of flies (77%) were repelled from the Y-tube olfactometer arm containing (−)-alpha-pinene, followed by carvacrol (76%). Our results showed that the selected essential oil constituent has the potential to be developed as an alternative to synthetic pesticides against B. dorsalis. However, further research is required to assess the activities of these EOCs under open-field conditions.

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“…Sublethal and transgenerational effects of several insecticides have been reported in other insects. For example, flupyradifurone affected the duration and survival rate of the F 1 and F 2 generations of Myzus persicae (Sulzer) (Hemiptera: Aphididae) [ 35 ], while the LC 30 of six different insecticides had significant negative impacts on the life-history parameters of Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) that led to reduced adult longevity and fecundity in the F 0 generation and reduced fertility and survival in the F 1 [ 36 ]. Our results provide evidence that the sublethal concentrations of chlorfenapyr do have significant sublethal and transgenerational effects on P .…”

Section: Discussionmentioning

confidence: 99%

Sublethal and Transgenerational Toxicities of Chlorfenapyr on Biological Traits and Enzyme Activities of Paracoccus marginatus (Hemiptera: Pseudococcidae)

Chen

Wang

et al. 2022

Insects

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Papaya mealybug, Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae), is an economically important, invasive insect that is now distributed worldwide. Chlorfenapyr has been demonstrated to have a significant control effect on P. marginatus. In order to evaluate the sublethal and transgenerational effects of chlorfenapyr on P. marginatus, the life table data of three consecutive generations were collected and analyzed by the age stage, two-sex life table method, and the enzyme activities were assayed using a spectrophotometer. The results showed that exposure to the insecticide had significant effects on the biological traits of subsequent generations of P. marginatus, and a higher intrinsic rate of increase (r), finite rate of increase (λ), net reproductive rate (R0), and a shorter mean generation time (T) were observed in the chlorfenapyr-treated F1 mealybugs. Enzyme activity assays showed that chlorfenapyr significantly inhibited the activities of catalase (CAT) and peroxidase (POD) while activating the activities of superoxide dismutase (SOD), which suggested that SOD, CAT, and POD may play an important role in the self-defense of P. marginatus against chlorfenapyr. These results conclusively demonstrated that exposure of P. marginatus to sublethal concentrations of chlorfenapyr induced hormetic effects on the F1 generation while having negative effects on the F0 and F3 generations.

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Sublethal and transgenerational effects of six insecticides on Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)

Cited by 11 publications

References 52 publications

Identification and characterization of UDP‐glycosyltransferase genes and the potential role in response to insecticides exposure in Bactrocera dorsalis

Identification and characterization of UDP‐glycosyltransferase genes and the potential role in response to insecticides exposure in Bactrocera dorsalis

Toxicity of Some Essential Oils Constituents against Oriental Fruit Fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae)

Sublethal and Transgenerational Toxicities of Chlorfenapyr on Biological Traits and Enzyme Activities of Paracoccus marginatus (Hemiptera: Pseudococcidae)

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