Screening, Efficacy and Mechanisms of Microbial Control Agents Against Sucking Pest Insects as Thrips

Wu, Shengyong; Tang, Liangde; Feng, Fang; Li, Donggang; Yuan, Xin; Lei, Zhongren; Gao, Yulin

doi:10.1016/bs.aiip.2018.07.005

Cited by 9 publications

(13 citation statements)

References 98 publications

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“…At present, the microbial agents used for F. occidentalis control mainly belong to Beauveria bassiana, Metarhizium anisopliae, Isaria fumosorosea, and Lecanicillium lecanii, etc [29]. We found that L. attenuatum, L. cauligalbarum, L. araneogenum, and L. aphanocladii were pathogenic to F.…”

Section: Discussionmentioning

confidence: 86%

“…In addition to the direct pathogenicity, sublethal effects of fungus on thrips, including fecundity, longevity, and feeding ability, may be one of the most important aspects of exposure to microbial control agents [29]. Zhang et al (2015) reported that a strain of B. bassiana, GZGY-1-3, significantly reduced the reproductive success of F. occidentalis and the subsequent fitness of their progeny.…”

Section: Occidentalismentioning

confidence: 99%

“…It is possible that the fungus competes with the host for nutrients and, consequentially, physiologically interferes with egg fertility. Therefore, this sublethal effect could partly offset the relatively slow death rate of fungal infection compared to conventional insecticides and may play an important role in thrips control [29]. Further study is needed to determine whether, like other entomogenous fungi, the L. cauligalbarum strain GZUIFR-ZHJ01 has other sublethal effects on F. occidentalis.…”

Section: Occidentalismentioning

confidence: 99%

“…As a consequence, biological control has been receiving an increasing amount of attention. The representative entomopathogenic fungi of F. occidentalis, such as Beauveria bassiana [18][19][20], Metarhizium anisopliae [21][22][23], Lecanicillium lecanii [24][25][26], and Isaria fumosorosea [27,28], are of particular interest to researchers [29]. Unfortunately, very little is known about species' ability to control F. occidentalis, other than these typical representative species.…”

mentioning

confidence: 99%

“…Unfortunately, very little is known about species' ability to control F. occidentalis, other than these typical representative species. Therefore, finding new entomopathogenic fungi capable of controlling F. occidentalis is a priority for our research group because of the needs and demands of the majority of crop growers [29].…”

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confidence: 99%

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Fast recognition of Lecanicillium spp. and its virulence against Frankliniella occidentalis

Zhou

Zou

JunRui

et al. 2020

Preprint

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Background: Frankliniella occidentalis (Thysanoptera: Thripidae) is a highly destructive sucking pest of numerous crops. The entomogenous fungi of Lecanicillium spp. are important pathogens of insect pests, and some have been developed as commercial biopesticides. In order to explore the wild resources of Lecanicillium spp. in the development of more effective F. occidentalis controls, efficient gene combinations for strain identification were screened from internal transcribed spacer (ITS) and the genes SSU, LSU, TEF, RPB1, and RPB2.Results: In this study, six genes were used to reconstruct the phylogeny of Lecanicillium genus respectively. Among these, only four events (ITS, TEF, RPB1, RPB2) were validated using the gold standard for identifying the strains. All the phylogenetic trees reconstruct by free combination of these four events exhibited the same topology. Bioassay studies of a purified conidial suspension further confirmed the infection of second-instar nymphs and adult female F. occidentalis by seven strains of Lecanicillium. L. attenuatum strains GZUIFR-lun1405 was the most virulent, approximately 8.33% of adult and 23.33% of nymphs F. occidentalis survived after a 7-d exposure. Two strains were selected to compare the effects on the amount of eggs laid by F. occidentalis. The number of nymphs of F. occidentalis significantly decreased when adult F. occidentalis were treated with L. cauligalbarum strain GZUIFR-ZHJ01 compared to the controls.Conclusions: We found that combination of ITS and TEF could be used for fast recognition of Lecanicillium spp. We demonstrated that L. attenuatum, L. cauligalbarum, L araneogenum, and L. aphanocladii had various efficacies against F. occidentalis which were the first to demonstrate efficient control of F. occidentalis. In addition, the L. cauligalbarum strain GZUIFR-ZHJ01 not only caused high mortality in F. occidentalis but also inhibited the fecundity of the pest.

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Section: Discussionmentioning

confidence: 86%

Section: Occidentalismentioning

confidence: 99%

Section: Occidentalismentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Fast recognition of Lecanicillium spp. and its virulence against Frankliniella occidentalis

Zhou

Zou

JunRui

et al. 2020

Preprint

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Akanthomyces attenuatum infection and effects on the reproduction of Frankliniella occidentalis

Xie,

Zhou,

Yue

et al. 2024

Biocontrol Science and Technology

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Thrips in genusMegalurothrips(Thysanoptera: Thripidae): biodiversity, bioecology, and IPM

Tang

Guo

et al. 2023

Journal of Integrated Pest Management

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Currently, there are a total of 15 thrips species in the genus Megalurothrips (Thysanoptera: Thripidae). Megalurothrips sjostedti Trybom and Megalurothrips usitatus (Bagnall) are the most economically important pest species because of the serious damage they can do to leguminous crops, especially cowpea, which is an important grain crop for Africa and a vegetable crop for the rest of the world. Megalurothrips sjostedti is only distributed in Africa, while M. usitatus is widely spread in subtropical and tropical regions of the world and is more invasive. Nigeria is the only area where both thrips species are shared. Inexplicably, M. usitatus does not seriously damage cowpea in Africa. Bioecological characteristics indicated that M. usitatus adapts to a wider temperature and humidity range, which may result in its current geographic distribution. Since the 2010s, M. usitatus has received more attention and research. The integrated pest management (IPM) strategy of both thrips as case studies was reviewed in this paper, along with multiple complementary tactics, including agronomic measures, physical-chemical lure control, biological control, and chemical control, and insecticide resistance. Lessons have been learned from both M. sjostedti and M. usitatus, as well as from another widespread invasive thrips species, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), thus enhancing our overall understanding of the biology, ecology, and IPM practices of M. sjostedti and M. usitatus.

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Screening, Efficacy and Mechanisms of Microbial Control Agents Against Sucking Pest Insects as Thrips

Cited by 9 publications

References 98 publications

Fast recognition of Lecanicillium spp. and its virulence against Frankliniella occidentalis

Fast recognition of Lecanicillium spp. and its virulence against Frankliniella occidentalis

Akanthomyces attenuatum infection and effects on the reproduction of Frankliniella occidentalis

Thrips in genusMegalurothrips(Thysanoptera: Thripidae): biodiversity, bioecology, and IPM

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