Laboratory and greenhouse evaluation of the entomopathogenic fungi and garlic–pepper extract on the predatory mites, Phytoseiulus persimilis and Neoseiulus californicus and their effect on the spider mite Tetranychus urticae

Vergel, Stephanie Johana Numa; Bustos, R Alexander; Rodríguez, C. Daniel; Cantor, R Fernando

doi:10.1016/j.biocontrol.2011.02.007

Cited by 52 publications

(41 citation statements)

References 29 publications

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“…Furthermore, Numa Vergel et al (2011) demonstrated that B. bassiana topical treatment had no negative effect on the fecundity of N. californicus and P. persimilis at three different concentrations. It is therefore reasonable to conclude that B. bassiana can reduce the fecundity of phytoseiid mites, including A. swirskii, but primarily when experiencing a combination of exposure routes with high conidial concentrations.…”

Section: Discussionmentioning

confidence: 98%

“…Nevertheless, a significantly higher mortality of B. bassiana-treated N. californicus compared with the control was reported, with similar survivorship as reported for A. swirskii in the present study. Numa Vergel et al (2011), on the other hand, reported that although N. californicus is susceptible to B. bassiana, virulence is low (\30 %) and not different to the control treatment over a 12-day period.…”

Section: Discussionmentioning

confidence: 99%

“…The studies reported susceptibility with slight to moderate virulence to P. persimilis after observation periods of three days (Duso et al 2008), six days (Pozzebon and Duso 2010) and 12 days (Numa Vergel et al 2011). Only Ludwig and Oetting (2001) reported high virulence to P. persimilis exposed to topical treatment of B. bassiana with 100 % mortality, although time of death and sporulation was not mentioned.…”

Section: Discussionmentioning

confidence: 99%

“…Field studies of B. bassiana applications with concomitant inoculations of phytoseiid mites have largely concluded that there is no detrimental effect on the phytoseiids and deemed these BCAs as compatible (Jacobson et al 2001;Chandler et al 2005;Numa Vergel et al 2011). Compatibility however does not warrant an additive or synergistic contribution to pest control.…”

Section: Discussionmentioning

confidence: 99%

“…Compatibility however does not warrant an additive or synergistic contribution to pest control. Jacobson et al (2001) found that combining B. bassiana with Neoseiulus cucumeris did not improve nor disrupt thrips control in a cucumber crop and B. bassiana treatments in conjunction with N. californicus or P. persimilis did not improve nor disrupt Tetranychus urticae Koch (Acari: Tetranychidae) control in roses (Numa Vergel et al 2011). Enhanced T. urticae control has been reported on tomato with concomitant use of B. bassiana and P. persimilis compared with either one on their own (Chandler et al 2005) suggesting that improved control by combined treatments may be crop-specific or dependent on pest level and age distribution.…”

Section: Discussionmentioning

confidence: 99%

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Compatibility of Amblyseius swirskii with Beauveria bassiana: two potentially complimentary biocontrol agents

et al. 2016

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The two biocontrol agents Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) and Beauveria bassiana (Balsamo) Vuillemin (Hypocreales: Cordycipitaceae) have the potential to complement one another as part of an integrated pest management programme. While both can suppress whitefly and thrips infestations in protected crops, A. swirskii is primarily used preventatively whereas B. bassiana can be used as a curative treatment at higher pest levels. With this concomitant use in mind, the research presented here aimed to identify potential negative effects of the commercial B. bassiana strain GHA on A. swirskii in a laboratory study. Adult A. swirskii were found to be susceptible to B. bassiana infection with slight to moderate virulence (20.74 ± 3.89 to 48.33 % ± 3.07) depending on the type of exposure and with a reduction in fecundity over time. There was however no negative effect on juvenile survival neither on dry residue nor on the offspring of infected mites. Thus, these two biocontrol agents do have the potential to be complementary. Further trials in the field are still required before a final conclusion can be reached.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Compatibility of Amblyseius swirskii with Beauveria bassiana: two potentially complimentary biocontrol agents

et al. 2016

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Inter‐ and intraspecific variation of spider mite susceptibility to fungal infections: Implications for the long‐term success of biological control

Zélé

Altıntaş

Santos

et al. 2020

Ecology and Evolution

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Spider mites are severe pests of several annual and perennial crops worldwide, often causing important economic damages. As rapid evolution of pesticide resistance in this group hampers the efficiency of chemical control, alternative control strategies, such as the use of entomopathogenic fungi, are being developed. However, while several studies have focused on the evaluation of the control potential of different fungal species and/or isolates as well as their compatibility with other control methods (e.g., predators or chemical pesticides), knowledge on the extent of inter‐ and intraspecific variation in spider mite susceptibility to fungal infection is as yet incipient. Here, we measured the mortality induced by two generalist fungi, Beauveria bassiana and Metarhizium brunneum, in 12 spider mite populations belonging to different Tetranychus species: T. evansi, T. ludeni, and T. urticae (green and red form), within a full factorial experiment. We found that spider mite species differed in their susceptibility to infection by both fungal species. Moreover, we also found important intraspecific variation for this trait. These results draw caution on the development of single strains as biocontrol agents. Indeed, the high level of intraspecific variation suggests that (a) the one‐size‐fits‐all strategy may fail to control spider mite populations and (b) hosts resistance to infection may evolve at a rapid pace. Finally, we propose future directions to better understand this system and improve the long‐term success of spider mite control strategies based on entomopathogenic fungi.

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Provisioning predatory mites with entomopathogenic fungi or pollen improves biological control of a greenhouse psyllid pest

Liu

Zhang

Beggs

et al. 2019

Pest Management Science

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BACKGROUND Tomato/potato psyllid (TPP), Bactericera cockerelli (Šulc), is a recently established invasive pest of solanaceous crops in New Zealand. No alternative control strategies are available against TPP due to the development of insecticidal resistance. We investigated the combined use of the predatory mites Amblydromalus limonicus or Neoseiulus cucumeris with either the fungus Beauveria bassiana (suspensions and dry conidia) or with Typha orientalis pollen as a control of TPP in greenhouse bell pepper over 7 weeks. RESULTS All treatments significantly reduced TPP densities compared with the control. A. limonicus resulted in significantly lower TPP densities than any other combination with N. cucumeris. B. bassiana suspensions did not affect A. limonicus densities when they were combined. However, the application of dry B. bassiana conidia significantly reduced the densities of A. limonicus. The use of T. orientalis pollen resulted in significantly higher densities of A. limonicus but densities of N. cucumeris did not increase. The combined use of A. limonicus with B. bassiana suspensions or T. orientalis pollen resulted in significantly decreased TPP populations and greater crop yield. CONCLUSION The synergistic application of A. limonicus with B. bassiana suspensions could be a suitable strategy to control TPP in the greenhouse. © 2019 Society of Chemical Industry

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Laboratory and greenhouse evaluation of the entomopathogenic fungi and garlic–pepper extract on the predatory mites, Phytoseiulus persimilis and Neoseiulus californicus and their effect on the spider mite Tetranychus urticae

Cited by 52 publications

References 29 publications

Compatibility of Amblyseius swirskii with Beauveria bassiana: two potentially complimentary biocontrol agents

Compatibility of Amblyseius swirskii with Beauveria bassiana: two potentially complimentary biocontrol agents

Inter‐ and intraspecific variation of spider mite susceptibility to fungal infections: Implications for the long‐term success of biological control

Provisioning predatory mites with entomopathogenic fungi or pollen improves biological control of a greenhouse psyllid pest

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