Predatory functional response and fitness parameters of Orius strigicollis Poppius when fed Bemisia tabaci and Trialeurodes vaporariorum as determined by age-stage, two-sex life table

Rehman, Saad; Zhou, Xingmiao; Ali, Saqib; Rasheed, Muhammad Asim; Islam, Yasir; Hafeez, Muhammad; Sohail, Muhammad Aamir; Khurram, Haris

doi:10.7717/peerj.9540

Cited by 12 publications

(8 citation statements)

References 94 publications

(116 reference statements)

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“…Furthermore, the results revealed that feeding on B. tabaci had a significant effect on predatorsat different stages in the postoviposition and oviposition periods of the O. laevigatus female, whereas it was insignificant for the preoviposition period (Table 2). These data agreed with the findings of Rehman et al (2020), who discovered that O. strigicollis fed on B. tabaci or Trialeurodes vaporariorum under laboratory conditions (28°C ± 1°C temperature, 70% ± 5% RH, and a 16 L:8 D photoperiod at a light intensity of 1400-1725 lux. ).…”

Section: Duration Of O Laevigatus Male and Femalesupporting

confidence: 92%

“…For example, the shortest total nymph duration of the predator was 11.75 days when it fed on the whitefly adult, whereas the longest occurred when it fed on the first and second instars of nymphs (Table 1). Rehman et al (2020) similarly cited the duration of eggs and nymphs of O. strigicollis when the predator consumed B. tabaci at 25°C ± 1°C, 75% ± 5% RH, and a 16 L:8 D photoperiod.…”

Section: Duration Of O Laevigatus Immature Stagesmentioning

confidence: 99%

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Evaluation of Orius laevigatus as a predator of Bemisia tabaci in Vitro

Salama

Emam

washahy

et al. 2022

Arab Universities Journal of Agricultural Sciences

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This study determined the ability of Orius laevigatus to consume different stages of Bemisia tabaci at various densities. Additionally, the use of B. tabaci as food and its effect on the life cycle parameters and female fecundity of Orius predator developmental stages were investigated. The results showed that O. laevigatus could consume whitefly at various stages and complete its preimaginal and postimaginal stages, with B. tabaci eggs, nymph instars, and adults as the only available food source. The consumption and fecundity of O. laevigatus were influenced by feeding on different stagesof B. tabaci. Furthermore, the females of this predator consumed more eggs, fourth nymphal instar, and adults than the first, second, and third instar nymphs of B. tabaci on a different density level. The mean numbers of consumptions at different stages of B. tabaci increased with increasing prey densities. The result simply that O. Laevigatus can be used as a predator in the biological control of tobacco whiteflies.

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Section: Duration Of O Laevigatus Male and Femalesupporting

confidence: 92%

Section: Duration Of O Laevigatus Immature Stagesmentioning

confidence: 99%

Evaluation of Orius laevigatus as a predator of Bemisia tabaci in Vitro

Salama

Emam

washahy

et al. 2022

Arab Universities Journal of Agricultural Sciences

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“…Similarly, Iqbal et al [ 51 ] used an age-stage, two-sex life table to investigate the impact that zinc oxide generated in the culture supernatant of B. thuringiensis had on the demographic characteristics of Musca domestica . Likewise, an age-stage, two-sex life table analysis was used to assess the predatory functional response and fitness characteristics of Orius strigicollis Poppius-fed Bemisia tabaci and Trialeurodes vaporariorum [ 52 ]. In the same way, ecotoxicological experiments were used to examine the sub-lethal effects of propargite on Amblyseius swirskii (Acari: Phytoseiidae) utilizing an age-stage, two-sex life table [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Akhtar

Afzal

Idrees

et al. 2022

Insects

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Fall armyworm [Spodoptera frugiperda (J. E. Smith, 1797)] was first reported in the Americas, then spread to all the continents of the world. Chemical insecticides are frequently employed in managing fall armyworms. These insecticides have various modes of actions and target sites to kill the insects. Chlorantraniliprole is a selective insecticide with a novel mode of action and is used against Lepidopteran, Coleopteran, Isopteran, and Dipteran pests. This study determined chlorantraniliprole's lethal, sub-lethal, and trans-generational effects on two consecutive generations (F0, F1, and F2) of the fall armyworm. Bioassays revealed that chlorantraniliprole exhibited higher toxicity against fall armyworms with a LC50 of 2.781 mg/l after 48 h of exposure. Significant differences were noted in the biological parameters of fall armyworms in all generations. Sub-lethal concentrations of chlorantraniliprole showed prolonged larval and adult durations. The parameters related to the fitness cost in F0 and F1 generations showed non-significant differences. In contrast, the F2 generation showed lower fecundity at lethal (71 eggs/female) and sub-lethal (94 eggs/female) doses of chlorantraniliprole compared to the control (127.5–129.3 eggs/female). Age-stage specific survival rate (Sxj), life expectancy (Exj) and reproductive rate (Vxj) significantly differed among insecticide-treated groups in all generations compared to the control. A comparison of treated and untreated insects over generations indicated substantial differences in demographic parameters such as net reproduction rate (R0), intrinsic rate of increase (r), and mean generation time (T). Several biological and demographic parameters were shown to be negatively impacted by chlorantraniliprole. We conclude that chlorantraniliprole may be utilized to manage fall armyworms with lesser risks.

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“…In our study, the arena consisted of small-scale setups such as plastic vials, which may have little resemblance to those experiments measured in natural conditions. In fact, this small experimental arena accelerated the search efficiency of the predatory bugs allowing them to repeatedly attack prey that initially escaped (Rehman et al 2020). Then these values are questionable to generate good representations of average natural predation levels and should be interpreted with care because of the poor chance for thrips to avoid predation (Kareiva 1990).…”

Section: Discussionmentioning

confidence: 99%

Enhanced biocontrol services in artificially selected strains of Orius laevigatus

et al. 2022

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Augmentative biological control in protected crops relies mainly on omnivorous predators. Their performance as biological control agents (BCA) depends on several characteristics of the species, which in turn may differ among strains within a species. We have recently reported the achievement of two Orius laevigatus (Hemiptera: Anthocoridae) strains showing a significant larger body size or better fitness when feeding on pollen, two characteristics having a key impact on field performance. However, selection towards a specific trait might result in trade-offs, such as reduced predation capacity, which may impair control efficiency. Therefore, the predation capacity of these selected populations was tested in laboratory as a first step prior to its field use. Functional response to different densities of Frankliniella occidentalis (Thysanoptera: Thripidae) (adults and larvae) and Myzus persicae (Hemiptera: Aphididae) (nymphs) were studied in the large-sized and pollen-tolerant O. laevigatus strains in comparison with commercial and wild populations. A type-II functional response was observed regardless of the population. Body size was significantly related to thrips but not to aphid predation. The large-sized strain showed a superior predation capacity, both on thrips larvae and especially on adult thrips, although not on aphids. Therefore, the larger body size of the selected strain may increase its effectiveness as BCA of thrips. Regarding the pollen-tolerant strain, no trade-offs were observed in predation rates on adults or larvae of thrips, but it showed higher predation capacity on aphid nymphs, suggesting an expanded prey range. Implications of such enhanced biocontrol services on crop protection are also discussed.

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Predatory functional response and fitness parameters of Orius strigicollis Poppius when fed Bemisia tabaci and Trialeurodes vaporariorum as determined by age-stage, two-sex life table

Cited by 12 publications

References 94 publications

Evaluation of Orius laevigatus as a predator of Bemisia tabaci in Vitro

Evaluation of Orius laevigatus as a predator of Bemisia tabaci in Vitro

Lethal, Sub-Lethal and Trans-Generational Effects of Chlorantraniliprole on Biological Parameters, Demographic Traits, and Fitness Costs of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Enhanced biocontrol services in artificially selected strains of Orius laevigatus

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