Effectiveness of different species/strains of entomopathogenic nematodes for control of western flower thrips (Frankliniella occidentalis) at various concentrations, host densities, and temperatures

Ebssa, Lemma; Borgemeister, Christian; Poehling, Hans‐Michael

doi:10.1016/s1049-9644(03)00132-4

Cited by 64 publications

(46 citation statements)

References 16 publications

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“…This is in accordance with nematode efficacy in controlling western flower thrips (Ebssa et al, 2004b). We attribute the weak activity of the nematodes against the banded greenhouse adults at 20°C to the highest vitality of thrips at this temperature, most likely promoting its natural resistance to infection with EPNs.…”

Section: Discussionsupporting

confidence: 81%

“…Among these methods we include EPNs, whose efficacy against Thysanoptera species has been particularly studied with western flowers thrips in the greenhouses. Higher efficacy of EPNs against this pest has been shown with a soil application of the suspension (Buitenhuis and Shipp, 2005), with earlier and multiple applications at lower concentration (Belay et al, 2005), at higher soil moisture (Ebssa et al, 2004a) and temperatures of 25°C (Ebssa et al, 2004b).…”

Section: Discussionmentioning

confidence: 99%

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First results concerning the efficacy of entomopathogenic nematodes against Hercinothrips femoralis (Reuter)

Trdan¹,

KuŽNik²,

Vidrih³

2007

Acta Agriculturae Slovenica

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The efficacy of the entomopathogenic nematodes Steinernema feltiae and Heterorhabditis bacteriophora against larvae and adults of banded greenhouse thrips, Hercinothrips femoralis, was studied under laboratory conditions. The activity of the biological agents under study was determined at three different temperatures (15, 20, and 25°C), with concentration of 200 infective juveniles per individual (larva or adult), a day:night ratio of 4:20 and relative humidity of 95 %. The experiment was conducted in plastic rearing vessels on French bean leaves with a slightly modified version of a method used for studying the bionomics of thrips. The mortality rate of the thrips was determined four days after the application of the nematode suspension. Temperature had significant influence on adult pest mortality, but no significant effects were found with nematode species. Neither temperature nor nematode species had significant effect on larval mortality, which ranged from 23 % (S. feltiae at 25°C) to approximately 50 % (H. bacteriophora at 15 and 25°C). Mortality of adults was significantly influenced only by temperature, with the nematodes being most efficient at 25°C (approximately 30 % mortality by H. bateriophora). The results of our research showed that foliar application of entomopathogenic nematodes might be a relatively efficient way for controlling H. femoralis, but the optimization of environmental factors would likely improve their efficacy further.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

First results concerning the efficacy of entomopathogenic nematodes against Hercinothrips femoralis (Reuter)

Trdan¹,

KuŽNik²,

Vidrih³

2007

Acta Agriculturae Slovenica

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“…Entomopathogenic nemotades such as Steinernema feltiae (Nematoda: Steinernematidae) are a compatible and effective option for use with predatory mites to control WFT. Nematodes are a good option in a biological control strategy involving predatory mites, because they primarily attack the soil-dwelling pupal stage of WFT (Buitenhuis & Shipp, 2005;Ebssa et al, 2004;2006), leaving the larval stages for predatory mites. Emergence of adult WFT was significantly reduced when the predatory mite G. aculeifer was added to bean seedlings along with two species of entomopathogenic nematodes, than either mite or nematode treatment alone (Premachandra et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…In addition, an 83% reduction of thrips numbers was observed compared to a control when N. cucumeris and two nematode species were applied to beans (Ebssa et al, 2006). Similar to predatory mites, nematodes are also highly affected by temperature, and are more effective at temperatures similar to those of their origin (Ebssa et al, 2004). The optimal temperature for S. feltiae is 20 o C (Cuthbertson et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

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Seasonal climatic variations influence the efficacy of predatory mites used for control of western flower thrips in greenhouse ornamental crops

et al. 2014

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This research investigated seasonal climate changes within greenhouses and the impacts they have on efficacy of the predatory mites Amblyseius swirskii and Neoseiulus cucumeris. Controlled environment chamber, greenhouse small-cage, and commercial greenhouse trials were conducted to determine which biological control agent is more efficacious for control of the pest western flower thrips (WFT), (Frankliniella occidentalis) on ornamental crops.When observed under laboratory conditions, predation and oviposition were increased at higher temperatures. Photoperiod and light intensity also have an impact on predatory mites. Predation rates for both mite species were greater when subjected to short day light conditions (8 h light, 11 W/m 2 ). Climates typical of summer (higher temperature and light intensity, long day length) were most favourable in terms of predation and oviposition for A. swirskii. Neoseiulus cucumeris laid more eggs under short day as opposed to long day settings.In summer and winter greenhouse small cage trials, the performance of N.cucumeris and A. swirskii significantly reduced WFT numbers on potted chrysanthemum plants. However, in summer, A. swirskii provided significantly better thrips control than N. cucumeris. The number of adult mites recovered from plants was similar for both mite treatments in winter, while A. swirskii were present in higher numbers throughout the summer trials. Results from leaf damage assessments indicate that A. swirskii is more effective for control of heavy WFT feeding damage in both summer and winter. Results from commercial greenhouse trials yielded similar trends as those found in the summer and winter small cage trials.iii ACKNOWLEDGEMENTS

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Integrated pest management in western flower thrips: past, present and future

Mouden

Sarmiento

Klinkhamer

et al. 2017

Pest Management Science

191

136

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Western flower thrips (WFT) is one of the most economically important pest insects of many crops worldwide. Recent EU legislation has caused a dramatic shift in pest management strategies, pushing for tactics that are less reliable on chemicals. The development of alternative strategies is therefore an issue of increasing urgency. This paper reviews the main control tactics in integrated pest management (IPM) of WFT, with the focus on biological control and host plant resistance as areas of major progress. Knowledge gaps are identified and innovative approaches emphasised, highlighting the advances in ‘omics’ technologies. Successful programmes are most likely generated when preventive and therapeutic strategies with mutually beneficial, cost‐effective and environmentally sound foundations are incorporated. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Effectiveness of different species/strains of entomopathogenic nematodes for control of western flower thrips (Frankliniella occidentalis) at various concentrations, host densities, and temperatures

Cited by 64 publications

References 16 publications

First results concerning the efficacy of entomopathogenic nematodes against Hercinothrips femoralis (Reuter)

First results concerning the efficacy of entomopathogenic nematodes against Hercinothrips femoralis (Reuter)

Seasonal climatic variations influence the efficacy of predatory mites used for control of western flower thrips in greenhouse ornamental crops

Integrated pest management in western flower thrips: past, present and future

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