Control of Bradysia odoriphaga (Diptera: Sciaridae) by soil solarization

Shi, Caihua; Hu, Jingrong; Wei, Qi-wen; Yang, Yuting; Cheng, Jiaxu; Wu, Qingjun; Wang, Shaoli; Xu, Bo; Su, Qi; Li, Chuanren; Zhang, Youjun

doi:10.1016/j.cropro.2018.08.020

Cited by 20 publications

(18 citation statements)

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“…When Leptinotarsa decemlineata larva was exposed to 65 • C for 10 min, the mortality was 100% [29]. The mortality was 100% when B. odoriphaga adults, eggs, larvae, or pupae were exposed to a constant temperature of 40 • C for 1.3, 1.8, 2.8, or 3.7 h, respectively [25]. Even if high temperature does not completely kill particular pests, it can reduce their survival.…”

Section: Discussionmentioning

confidence: 99%

“…It implies that sufficient time at an appropriately high temperature is required for pests to die. Shi et al [25] showed that the mortality was 100% when B. odoriphaga adults, eggs, larvae, and pupae were exposed to constant temperatures of 36 • C for 24.0, 24.0, 48.0, and 48.0 h, respectively. However, it is difficult to maintain 36 • C for 24 h or 48 h in the natural environment, though it is possible to maintain 37 • C for 4 h [31].…”

Section: Discussionmentioning

confidence: 99%

“…The higher the temperature, the shorter the time it takes to cause larval death, and vice versa [32]. Shi et al [25] research showed that the mortality was only zero and 64.67% when B. odoriphaga larvae were exposed to constant temperatures of 38 • C for 4 h and 40 • C for 2 h, and then were maintained in an incubator at 25 • C for 24 h. However, our result showed that 90.66% and 100% of B. odoriphaga larvae died within 5 days of treatment at 37 • C for 4 h and 40 • C for 2 h, respectively. This phenomenon poses a scientific question as to how a series of physiological and biochemical responses had taken place in the larvae of B. odoriphaga within 5 days, including some oxidases and heat shock proteins, etc.…”

Section: Discussionmentioning

confidence: 99%

“…The culture dishes were placed in an incubator at one of three temperatures (34, 37, or 40 • C) for one of three exposure times (1, 2, or 4 h), and incubated at 25 • C as a control. The test conditions were set by reference to our previous results [25]. After the exposure, the culture dishes were maintained in an incubator at 25 ± 1 • C, 70 ± 5% RH, and 14:10 (L:D).…”

Section: Effect Of Short-term High-temperature Stress On Development mentioning

confidence: 99%

“…Thus, artificially raising the temperature of insects in the field is a promising strategy for environmentally-friendly pest control. Recently, Shi et al [25] reported that 3.7 h of soil solarization at 40 • C will produce 100% control against all B. odoriphaga stages. In addition, according to our laboratory studies, the optimal temperature for B. odoriphaga growth ranges from 20 to 25 • C [8].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Non-Lethal High-Temperature Stress on Bradysia odoriphaga (Diptera: Sciaridae) Larval Development and Offspring

Shi

Zhang

et al. 2020

Insects

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Throughout China, the dipteran pest Bradysia odoriphaga significantly reduces Chinese chive production; therefore, identifying conditions that influence its growth and development is crucial for developing ecological regulation strategies. In this study, different non-lethal high temperatures and treatment durations were used to stress the third-instar larvae of B. odoriphaga, and the effects of this treatment on their growth and offspring were recorded and analyzed. The results showed that the average larval mortality increased with increased temperature and prolonged exposure times. After stress treatment at 40 °C for 2 h, 100% of larvae died within 5 days, which was not significantly different from the 5-day average larval mortality (90.66%) after stress at 37 °C for 4 h, but significantly higher than the 5-day average larval mortality (72.00%) after stress at 40 °C for 1 h. After 5 days, all still-living larvae could pupate, and there was no significant difference in average pupal period after pupation. However, the eclosion rate of subsequent pupae decreased with increased temperature and prolonged exposure times, and were only 43.00% and 42.73% after larvae were stressed at 37 °C for 4 h and 40 °C for 1 h, respectively. After eclosion into adults, there was no significant difference in the lifespan of unmated female adults, while the lifespan of unmated male adults was significantly reduced to 1.67 d and 2 d after larvae were stressed at 37 °C for 4 h and 40 °C for 1 h, respectively. However, there was no significant difference in male and female adult longevity after mating. There was no significant difference in oviposition or egg hatchability. This indicates that non-lethal high temperature at 37 °C for 4 h can hinder development and allow control of B. odoriphaga. There is great potential for non-lethal high temperature to be applied in the field to control agricultural pests.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Effect Of Short-term High-temperature Stress On Development mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Non-Lethal High-Temperature Stress on Bradysia odoriphaga (Diptera: Sciaridae) Larval Development and Offspring

Shi

Zhang

et al. 2020

Insects

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Low expression levels of nicotinic acetylcholine receptor subunits Boα1 and Boβ1 are associated with imidacloprid resistance in Bradysia odoriphaga

Shan

Zhang

Chen

et al. 2020

Pest Management Science

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BACKGROUNDNeonicotinoid insecticide imidacloprid acts on insect nicotinic acetylcholine receptors (nAChRs). The mechanisms of insect resistance to imidacloprid include target‐site alteration and increased detoxification metabolism. In Bradysia odoriphaga, cytochrome P450 monooxygenase has been found involved in metabolic resistance to imidacloprid. However, the situation of target‐site related resistance to imidacloprid in B. odoriphaga is still unknown.RESULTSNine field‐collected B. odoriphaga populations showed various sensitivities to imidacloprid compared with the susceptible (SS) strain, including susceptibility, decreased susceptibility, low resistance, moderate resistance and high resistance. Seven nAChR subunit genes including α1, α2, α3, α7, α8, β1 and β3, were examined for site mutation and changes in transcription levels in field populations. No nAChR polymorphism potentially related to the resistant phenotypes was found. However, differential expression of nAChR subunit genes was found in imidacloprid resistant field population. In high imidacloprid resistant population LC‐2 (93.14‐fold resistance), the transcription levels of α1, α2 and β1 subunits were significantly down‐regulated, while the transcription levels of α3 and α8 subunits were significantly up‐regulated, compared with that in SS strain. In addition, imidacloprid acute exposure induced differential expression of nAChR subunit genes in B. odoriphaga. Furthermore, RNA interference (RNAi) suppressed the transcriptional expression of Boα1 and Boβ1, and decreased mortality of B. odoriphaga by 23.03% and 18.69%, respectively, when treated with imidacloprid.CONCLUSIONThese results indicated that, although no target‐site mutation was found in imidacloprid resistant B. odoriphaga population, the reduced expression of α1 and β1 subunits contributed to B. odoriphaga resistance to imidacloprid. © 2020 Society of Chemical Industry

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Modeling Soil Thermal Regimes During a Solarization Treatment in Closed Greenhouse by Means of Symbolic Regression via Genetic Programming

D'Emilio

2020

Lecture Notes in Civil Engineering

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Control of Bradysia odoriphaga (Diptera: Sciaridae) by soil solarization

Cited by 20 publications

References 31 publications

Effects of Non-Lethal High-Temperature Stress on Bradysia odoriphaga (Diptera: Sciaridae) Larval Development and Offspring

Effects of Non-Lethal High-Temperature Stress on Bradysia odoriphaga (Diptera: Sciaridae) Larval Development and Offspring

Low expression levels of nicotinic acetylcholine receptor subunits Boα1 and Boβ1 are associated with imidacloprid resistance in Bradysia odoriphaga

Modeling Soil Thermal Regimes During a Solarization Treatment in Closed Greenhouse by Means of Symbolic Regression via Genetic Programming

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