A new method for loading predatory mites with entomopathogenic fungi for biological control of their prey

Lin, Gongyu; Tanguay, Alexandre; Guertin, Claude; Todorova, Silvia; Brodeur, Jacques

doi:10.1016/j.biocontrol.2017.09.012

Cited by 25 publications

(18 citation statements)

References 34 publications

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“…New studies exploring alternative methods of dissemination of this fungus in the environment have been conducted with the aim to maximize the efficiency of its transmission to target arthropods. According to Lin et al (2017), a promising strategy for biological control programs is the utilization of other invertebrates, such as mites and insects, as vectors of entomopathogenic fungi, increasing the chances of contact between a microorganism and its host. This strategy is particularly promising when biopesticides cannot be effectively released against their targets (Figure 2).…”

Section: Biological Control Of Arthropods By Fungimentioning

confidence: 99%

Filamentous fungi in biological control: current status and future perspectives

Baron

Rigobelo

Zied

2019

Chil. j. agric. res.

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Agriculture is the largest economic sector in the world. The awareness of the current environmental degradation caused by conventional farming practices has allowed the use of entomopathogenic fungi as a biological control technique to become increasingly widespread. Several studies from the laboratory bench to field trials show that fungi can be directly applied or, more recently, can be carried to the target by other biological vectors (i.e., insects), which increases their potential for dispersal and transmission. In addition, studies on the development of formulations have intensified, with the aim to enable their commercialization and reduce costs for the more sustainable management of crops. This review discusses the positive aspects of the use of filamentous fungi in the biological control of pests, specifically in terms of the use of antagonistic fungal plant pathogens and nematophagous fungi.

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Section: Biological Control Of Arthropods By Fungimentioning

confidence: 99%

Filamentous fungi in biological control: current status and future perspectives

Baron

Rigobelo

Zied

2019

Chil. j. agric. res.

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“…plants supporting thrips populations) and can coexist in commercial greenhouses applying biological control programs. In a previous study, we showed that B. bassiana strain ANT-03 is virulent to thrips (all stages, except first instar larva), slightly virulent to N. cucumeris and avirulent to A. swirskii 20 . This system thus perfectly fits the profile of a suitable pathogen, vector and host association, in which the pathogen is virulent against host and benign towards the vector 40 .…”

Section: Methodsmentioning

confidence: 88%

“…Growers periodically release predatory mites and spray B. bassiana onto crops to control thrips. The strategy we proposed does not require two separate applications, but solely a premix of B. bassiana conidia (technical grade powder) into commercially available predatory mite package (if approved by regulatory agencies) 20 . The predatory mites would likely increase disease transmission rate to concealed pests.…”

Section: Discussionmentioning

confidence: 99%

“…Adult female predatory mites of various ages were exposed to B. bassiana conidia in the commercial rearing substrate (2.5 × 10 9 conidia g −1 substrate) for two hours to obtain maximum conidia load on their body (Fig. 6) 20 . In a modified Eppendorf tube, we put 25 predatory mites with 0.2 g of B. bassiana contaminated rearing substrate 20 .…”

Section: Methodsmentioning

confidence: 99%

“…6) 20 . In a modified Eppendorf tube, we put 25 predatory mites with 0.2 g of B. bassiana contaminated rearing substrate 20 . The tube was attached on the stem, at equal distance to the base of the petiole of the two trifoliates (Fig.…”

Section: Methodsmentioning

confidence: 99%

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Phytoseiid predatory mites can disperse entomopathogenic fungi to prey patches

Lin

Guertin

Paolo

et al. 2019

Sci Rep

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Recent studies have shown that predatory mites used as biocontrol agents can be loaded with entomopathogenic fungal conidia to increase infection rates in pest populations. Under laboratory conditions, we determined the capacity of two phytoseiid mites, Amblyseius swirskii and Neoseiulus cucumeris to deliver the entomopathogenic fungus Beauveria bassiana to their prey, Frankliniella occidentalis. Predatory mites were loaded with conidia and released on plants that had been previously infested with first instar prey clustered on a bean leaf. We examined each plant section to characterize the spatial distribution of each interacting organism. Our results showed that A. swirskii delivered high numbers of conidia to thrips infested leaves, thereby increasing the proportion of thrips that came into contact with the fungus. The effect was larger when thrips infestation occurred on young leaves than on old leaves. Neoseiulus cucumeris delivered less conidia to the thrips infested leaves. These patterns result from differences in foraging activity between predatory mite species. Amblyseius swirskii stayed longer on plants, especially within thrips colonies, and had a stronger suppressing effect on thrips than N. cucumeris. Our study suggests that loading certain predatory mite species with fungal conidia can increase their capacity to suppress thrips populations by combining predation and dispersing pathogens.

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Interactions of Entomopathogens with Other Pest Management Options

Dara¹

2019

Sustainability in Plant and Crop Protection

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A new method for loading predatory mites with entomopathogenic fungi for biological control of their prey

Cited by 25 publications

References 34 publications

Filamentous fungi in biological control: current status and future perspectives

Filamentous fungi in biological control: current status and future perspectives

Phytoseiid predatory mites can disperse entomopathogenic fungi to prey patches

Interactions of Entomopathogens with Other Pest Management Options

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