Effect of Teflubenzuron Ingestion on Larval Performance and Chitin Content in Leptinotarsa decemlineata

Meng, Qingwei; Wang, Jingjing; Shi, Ji-Feng; Guo, Wen‐Chao; Li, Guoqing

doi:10.1007/s12230-018-9646-0

Cited by 6 publications

(6 citation statements)

References 44 publications

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“…Teflubenzuron was noted to have antifeedant activity and reduced larval foliage-feeding, which leads to a reduction in the consumption rate of the larvae and their weakening. Moreover, teflubenzuron ingestion delayed the development of L. decemlineata larvae resulted in prolongation of larval period [27]. The larvae of Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae) exposed to the insecticide, cyantraniliprole, expend more energy on detoxification than on growth, thus increasing their developmental duration compared to the control [28].…”

Section: Discussionmentioning

confidence: 99%

Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of Spodoptera cilium (Lepidoptera: Noctuidae)

Hatami

Ziaee

Seraj

et al. 2021

Insects

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Imunit is a mixture of alpha-cypermethrin + teflubenzuron, and has been launched for controlling caterpillars. In this study, the effects of Imunit at LC50 and LC30 were investigated on parental and offspring generation of S. cilium, according to age-stage, two-sex life table. The experiments were conducted by leaf dipping method at 25 °C and 60 ± 5% relative humidity, under a cycle of 16 h fluorescent light and 8 h darkness. LC30 and LC50 concentrations of Imunit increased the immature developmental time of S. cilium in the offspring generation, while the LC50 of Imunit significantly reduced the developmental time of adults. The adult pre-oviposition period and total pre-oviposition period considerably increased when offspring were treated with LC50 of Imunit. In offspring of S. cilium exposed to LC50 and LC30 concentrations of Imunit, the gross reproductive rate (GRR), net reproduction rate (R0), the intrinsic rate of population increase (r), and the finite rate of population increase (λ) significantly reduced compared to the control. This study showed that the application of Imunit at LC50 could suppress the S. cilium population and can be used in the integrated management program of this pest.

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Section: Discussionmentioning

confidence: 99%

Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of Spodoptera cilium (Lepidoptera: Noctuidae)

Hatami

Ziaee

Seraj

et al. 2021

Insects

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“…Similar results were reported by (Salokhe et al 2003;Fonseca et al 2015) in Tribolium castaneum (herbst), Lobesia botrana and Diatraea flavipennella when exposed to sub-lethal concentrations of lufenuron and flufenoxuron. This is likely to be a consequence of a resource trade-off as lufenuron-treated E. vittella larvae spend more resources on detoxification of the substance rather than development causing prolonged larval development in the control group (Meng et al 2018). Our results demonstrate that pupation rates, adult emergence rates, male and female longevity, fecundity and eggs viability of E. vittella were significantly decreased at LC15 and LC40 concentrations of in parent (F0) and F1 generation (Table 2 & 3).…”

Section: Discussionmentioning

confidence: 99%

“…Our results demonstrate that pupation rates, adult emergence rates, male and female longevity, fecundity and eggs viability of E. vittella were significantly decreased at LC15 and LC40 concentrations of in parent (F0) and F1 generation (Table 2 & 3). Previous studies depicted that the mean number of eggs laid by female adults, the percentage of offspring eggs hatching, male and female longevity would decrease after treatment of insect growth regulator insecticides (Schneider et al 2003;Seth et al 2004;Mahmoudvand et al 2011;Qu et al 2017;Meng et al 2018). Reductions in fecundity may result from both physiological and behavioural effects of pesticide treatment (Desneux et al 2007).…”

Section: Discussionmentioning

confidence: 99%

Sub-lethal effects of lufenuron exposure on spotted bollworm Earias vittella (Fab): key biological traits and detoxification enzymes activity

Hafeez

Jan

Nawaz³

et al. 2019

Environ Sci Pollut Res

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Spotted bollworm, Earias vittella, is one of the most serious and devastating insect pests of vegetables and cotton. Currently insecticides are necessary for its control in nearly all crop systems. In this paper we evalute the sub-lethal effects of lufenuron on biological traits and activity of detoxification enzymes; cytochrome P450 monooxygenases, esterase and glutathione S-transeferase (GST) in second instar larvae of E. vittella. Results showed that sub-lethal concentrations (LC15 and LC40 of lufenuron, prolonged larval period (at LC40 = 13.86±1.22 d, LC15 = 13.14±1.15 d, control = 12.28±0.7), pupal duration (LC40 = 11.1± d, LC15 = 11.8±0.28 d, control = 9.40±0.52) and extended mean generation time (LC40 = 27.3±0.43 LC15 = 29.0±1.19 d, control = 26.0±0.65). Sub-lethal exposure significantly prolonged the pre-adult stage, decreased pupal weight and reduced adult longevity in the parent (F0) and F1 generation. Moreover, the fecundity and egg viability were significantly lowered in parental and F1 generations at both sublethal concentrations compared to the control. While no significant effects were noted on reproductive parameters such as the intrinsic rate of increase (r), finite rate of increase (λ), and net reproduction rate (R0) of F1 generation when compared to the control. Only mean generation time (T) in F1 at LC15 was significantly longer compared to the LC40 and control (LC40= 3.79±0.37, LC15 = 32.28±1.55d, control= 29.79±0.55). Comparatively, the activities of cytochrome P450 monooxygenases and esterase were higher than GST in treated populations.The increase in resistance development against insecticides may possibly because of elevated activity of detoxification enzymes. These results provide useful information for monitoring resistance in integrated pest management (IPM) programs for E. vittella.

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“…Crop pest species belonging to Coleoptera, Orthoptera, Hemiptera, Lepidoptera and Diptera demonstrated a series of abnormalities when treated with CSI insecticides. The beetle L. decemlineata was used as a model in different studies, showing common results such as being trapped in the old cuticle, hindgut protruding in a rectal prolapse and color change, consisting in treatments with the substances lufenuron, teflubenzuron, diflubenzuron, cyromazine, hexaflumuron and triflumuron (Karimzadeh, et al, 2007;Hosseinzadeh & Delkhoom, 2013;Meng, et al, 2018). Teflubenzuron had its activity evaluated in tests with S. gregaria carried out by Al-Mokhlef et al (2012), who formulated a theory that the compound would destroy the integument cell structure and cuticle components and proved their hypothesis by results of ecdysis failures followed by death, and an 88.9% inhibition of chitin amount.…”

Section: Morphological and Anatomical Modifications Generated By Igrs Treatmentsmentioning

confidence: 99%

“…The CSI teflubenzuron expressed a reduction in L. decemlineata larvae feeding (Meng, et al, 2018), as well as a brief fagoinhibition of B. odoriphaga insects treated with chlorfluazuron, hexaflumuron, diflubenzuron and cyromazine (Zhang, et al, 2016). The study of precocene activities showed, in L. migratoria, M. persicae and Trialeurodes vaporariorum (Westwood, 1856) (Hempitera: Aleyrodidae), known as the greenhouse whitefly, changes in excretory system that indicated a decline in feeding activity (Triseleva, 2003).…”

Section: Fagoinhibitionmentioning

confidence: 99%

Existing potentials in Insect Growth Regulators (IGR) for crop pest control

Apolinário

Feder

2021

RSD

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The aim of this review is to explore the potentials existing in insecticides that are considered Insect Growth Regulators (IGR) for the control of insects considered crop pests, with an observation of the main mechanisms of neuroendocrine modifications, development and viability of the species used as study models. The data search on digital platforms, as well as the screening of materials about crop pests, resulted in 74 IGR references and their potentials. The analysis of the information found demonstrated a greater use in works of compounds belonging to chitin synthesis inhibitors class; and orders such as Hemiptera, Lepidoptera, Coleoptera, Orthoptera, Thysanoptera and Diptera were represented in the studies. The main types of activities reunited were morphological and anatomical modifications, reproductive modifications, alterations in developmental stage, alterations in developmental period, ovicidal activity, larvicidal/ninficidal activity and fagoinhibition. The congregated knowledge about the main pests used as study models, the main IGRs compounds and their biological potentials allow an evaluation of their use as an informative source for crop pest control methods.

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Effect of Teflubenzuron Ingestion on Larval Performance and Chitin Content in Leptinotarsa decemlineata

Cited by 6 publications

References 44 publications

Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of Spodoptera cilium (Lepidoptera: Noctuidae)

Effects of Imunit Insecticide on Biological Characteristics and Life Table Parameters of Spodoptera cilium (Lepidoptera: Noctuidae)

Sub-lethal effects of lufenuron exposure on spotted bollworm Earias vittella (Fab): key biological traits and detoxification enzymes activity

Existing potentials in Insect Growth Regulators (IGR) for crop pest control

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