Sublethal effect of spirotetramat on the life table and population growth of Frankliniella occidentalis (Thysanoptera: Thripidae)

Liang, Hua-Yu; Yang, Xiubin; Sun, Lijuan; Zhao, Chao; Chi, Hsin; Zheng, Chongke

doi:10.1127/entomologia/2020/0902

Cited by 38 publications

(25 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, insecticide application causes undesirable effects, such as the development of resistance and damage to non-target organisms, including insect natural enemies [17][18][19][20][21]. The slower acting modern insecticides can cause various sublethal effects that finally lead to pest suppression and limit the evolution of resistance [22]. However, TLM has been shown to be resistant to various chemicals, including new insecticides [23].…”

Section: Introductionmentioning

confidence: 99%

Lethal and sublethal effects of synthetic and bio-insecticides on Trichogramma brassicae parasitizing Tuta absoluta

et al. 2021

View full text Add to dashboard Cite

The tomato leaf miner (TLM), Tuta absoluta (Meyrick), is an invasive tomato pest found worldwide. Sustainable control strategies aimed at increasing biological control approaches and decreasing chemical inputs are required, due to the tendency to develop insecticide resistance. In this study, the lethal and sublethal effects of four chemical insecticides (abamectin, indoxacarb, chlorantraniliprole, and spinosad) and the sublethal effects of the entomopathogenic fungus Metarhizium anisopliae (Metschnikoff) on a widespread TLM egg parasitoid, Trichogramma brassicae Bezdenko, were estimated. Concentration mortality response bioassays enabled the estimation of lethal concentrations of the tested insecticides for the parasitoids, with chlorantraniliprole having the lowest LC50 and indoxacarb the highest. The LC25 and LC50 of the tested insecticides on the TLM were sprayed on eggs and then offered at three time intervals to the parasitoids. The fertility and other life table parameters of the individuals emerging from the treated eggs were estimated. All of the chemical insecticides, but not the fungus, had harmful effects on T. brassicae. The insecticide applications caused a 3.84–5.17 times reduction in the net reproductive rate (R0) compared with the control. No parameters were affected by spraying the fungus in the 0h treatment, but effects were recorded at 24 and/or 48h, except for the gross reproduction rate (GRR). The value of the intrinsic rate of increase (rm) also decreased to 0.528–0.617 after the insecticide treatments. The doubling time (DT) increased in all treatments compared to the control. Nevertheless, the generation time (T) was only very slightly affected. In addition, in the combination experiments, M. anisopliae showed a remarkable synergism with T. brassicae in controlling TLM eggs. These results indicate that low levels of lethal effects on key biological control agents should be considered in the choice of insecticides to be included in sustainable TLM control packages.

show abstract

Section: Introductionmentioning

confidence: 99%

Lethal and sublethal effects of synthetic and bio-insecticides on Trichogramma brassicae parasitizing Tuta absoluta

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Pests are inevitably exposed to low and/or sublethal concentrations of insecticides in agro-ecosystems because lethal concentrations of insecticides gradually decrease after initial spraying in fields and orchards (Desneux et al, 2005; 2007). This type of exposure could cause various sublethal effects on pests including negative effects on key life history traits or stimulation of development and/or reproductive capacity (Desneux et al, 2007; Zhen et al, 2018; Li et al 2018; Liang et al, 2021; Gong et al, 2022; Wu et al, 2022). However, these types of sublethal effects could vary among insect species, insecticide classes and concentrations, and application methods (Müller et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Sublethal and transgenerational effects of lambda-cyhalothrin and abamectin on the development and reproduction of Cydia pomonella

Ju¹,

Liu²,

Li³

et al. 2022

Preprint

View full text Add to dashboard Cite

The codling moth Cydia pomonella (Lepidoptera: Tortricidae) is a major invasive pest of pome fruits and walnuts worldwide. Lambda-cyhalothrin (LCT) and abamectin (AM) have been frequently used in C. pomonella control, but control of this pest is very difficult because shortly after hatching, larvae of this insect bore tunnels and hide inside host plant fruit. In this study, a simulated field spray bioassay method was developed against neonate larvae of C. pomonella and concentration-response bioassays were conducted to evaluate the susceptibility of the neonate larvae to LCT and AM. Exposure of neonate larvae to sublethal concentrations (LC30) of LCT or AM significantly reduced the survival rate of larvae (4th and 5th instars), lowered the mean weight of larvae and pupae, and decreased the daily maximal number of eggs laid and the total number of eggs laid (fecundity) per female. The sublethal effects, including reduced body mass, mean fecundity and net reproductive rate, extended mean generation time, and shortened oviposition period, were also found in transgenerational offspring. Furthermore, the transgenerational maternal effects were more obvious for AM than LCT, in comparison to the control. Additionally, the estimated population size was decreased by exposure to LC30 of LCT and AM, and the observed reduction of fecundity and population size within and across generations was likely the result of the downregulation of the reproduction-related vitellogenin gene (CpVg) after exposure to LC30 of LCT and AM. These results provide a better understanding of the overall effects of LCT and AM on C. pomonella and the transgenerational effects which should be taken into consideration when using insecticides in order to control C. pomonella.

show abstract

“…The egg laying of F. occidentalis is not easily observed in plant tissues, and so is difficult to study, resulting in few studies on eggs as the target of insecticides. Our previous studies showed that spirotetramat could affect the growth, development and reproduction of F. occidentalis 7 . The development duration, survival rate and related population dynamics of F. occidentalis were adversely affected by sublethal dose stress 7 .…”

Section: Introductionmentioning

confidence: 99%

“…Our previous studies showed that spirotetramat could affect the growth, development and reproduction of F. occidentalis 7 . The development duration, survival rate and related population dynamics of F. occidentalis were adversely affected by sublethal dose stress 7 . Kateřina Kovaříková also found that spirotetramat had good ovicidal activity against Aleyrodes proletella 8 .…”

Section: Introductionmentioning

confidence: 99%

Ovicidal activity of spirotetramat and its effect on hatching, development and formation of Frankliniella occidentalis egg

Yang

Zhou

Sun

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Frankliniella occidentalis (Pergande) has become an important vegetable pest worldwide because of its economic damage to crop production. However, it is difficult to control due to its unique living habits. In this study, the eggs of F. occidentalis were used as the target to explore the ovicidal activity of spirotetramat on the thrips and its effect on hatching, development and formation. After the treatment of spirotetramat, the LC50 value descreased with increased egg age using egg dipping method, and showed the same trend as the leaf dipping method verified on living plants. Through ultra-depth-of-field microscopy, scanning electron microscopy and transmission electron microscopy, the egg shell and internal structures of F. occidentalis eggs were studied. Spirotetramat can destroy the egg shells of F. occidentalis, resulting in shrinkage of the egg surface, sunken pores, egg deformities, egg shell rupture and other phenomena. This allows spirotetramat to enter the egg and destroy the egg structure, making the egg internal structure flocculent, fuzzy and unevenly distributed, which affects embryonic development and causes the nymphs to die before hatching. Therefore, the prevention and control of F. occidentalis using spirotetramat before damage is caused to crops should have a better effect.

show abstract

Sublethal effect of spirotetramat on the life table and population growth of Frankliniella occidentalis (Thysanoptera: Thripidae)

Cited by 38 publications

References 0 publications

Lethal and sublethal effects of synthetic and bio-insecticides on Trichogramma brassicae parasitizing Tuta absoluta

Lethal and sublethal effects of synthetic and bio-insecticides on Trichogramma brassicae parasitizing Tuta absoluta

Sublethal and transgenerational effects of lambda-cyhalothrin and abamectin on the development and reproduction of Cydia pomonella

Ovicidal activity of spirotetramat and its effect on hatching, development and formation of Frankliniella occidentalis egg

Contact Info

Product

Resources

About