Mite Pathogens and Their Use in Biological Control

Wekesa, Vitalis W.; Hountondji, Fabien C. C.; Dara, Surendra K.

doi:10.1007/978-3-319-15042-0_12

Cited by 5 publications

(4 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that T. merganser is susceptible to these entomopathogenic fungi. Previous reports have shown the infectivity of these two species against other members of the Tetranychidae family, mainly T. urticae ( Draganova & Simova, 2010 ; Seiedy et al, 2010 ; Wekesa, Hountondji & Dara, 2015 ; Habashy et al, 2016 ; Shin et al, 2017 ). This infectivity is feasible due to the artificial interaction between host-pathogen that may be established between this fungal group (Hyphomycetes) and Acari at high conidial concentrations.…”

Section: Discussionmentioning

confidence: 85%

“…However, despite not being isolated from mites under natural conditions ( Wekesa, Hountondji & Dara, 2015 ), all of the Metarhizum anisopliae s.l. strains and many of the B. bassiana strains that were tested showed significant lethality to adult females.…”

Section: Discussionmentioning

confidence: 99%

“…Although B. bassiana and M. anisopliae s.l. have not been found to infect mites naturally ( Wekesa, Hountondji & Dara, 2015 ), and they do not cause natural epizootic diseases in mites, some isolates of B. bassiana and M. anisopliae have been shown to be infective to T. urticae under laboratory conditions, when inoculated in greenhouses, or in the field. This is suggestive of their potential to control this pest ( Alves et al, 2002 ; Bartkowski, Odindo & Otieno, 1988 ; Chandler, Davidson & Jacobson, 2005 ; Draganova & Simova, 2010 ; Bugeme et al, 2014 ; Bugeme et al, 2015 ; Dash et al, 2018 ; Yesilayer, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High susceptibility of Tetranychus merganser (Acari: Tetranychidae), an emergent pest of the tropical crop Carica papaya, towards Metarhizium anisopliae s.l. and Beauveria bassiana strains

Alfaro-Valle

Martínez-Hernández

Otero-Colina

et al. 2022

PeerJ

View full text Add to dashboard Cite

Background The mite Tetranychus merganser is considered to be an emerging pest of various crops in tropical countries. It is one of the most detrimental pests in the papaya orchards of some regions of México. The current field control of Tetranychus spp. involves the extensive use of chemicals that have some degree of toxicity to humans or the environment and may cause selective resistance. The use of biological alternatives such as parasitoids and mite predators have limited effectiveness. In order to find effective but non-toxic alternatives for mite pest management, bio-products that are able to be mass produced and applied to large production areas have been sought, including the entomopathogen fungi. B. bassiana and M. anisopliae s.l. are the fungi most extensively used for the biological control of insect pests. Although they do not cause natural epizootic diseases in mites, there are reports that show that they infect T. urticae, and should be evaluated for use in the biological control of papaya’s mite pests. Methods A T. merganser colony was established and the susceptibility of adult females to 30 entomopathogenic fungi strains was evaluated under laboratory conditions with an in vitro mass screening bioassay. Ten strains of Metarhizium anisopliae sensu lato (s.l.), eleven of Beauveria bassiana, nine of Lecanicillium sp. and one of Hirsutella thompsonii var. sinematosa were tested. The infectivity of adult females was evaluated calculating the percentage of mortality. To calculate the LC50 and LT50 of the most virulent strains, a bioassay was performed using serial concentrations (1×104–1×108 conidia/mL) for each strain. Strains showing ability to infect eggs laid were evaluated with a novel egg-infectivity bioassay. The internal transcribed spacer (ITS) region of the more lethal strains were sequenced. Results T. merganser and T. urticae were found in orchards of Carica papaya (Maradol variety and Tainung hybrid) in Campeche, México. All tested strains of M. anisopliae s.l. and B. bassiana were infectious to the adult female of T. merganser at a concentration of 1×108 conidia/mL. Six strains of M. anisopliae (Ma002, Ma003, Ma004, Ma005, Ma014 and Ma034) caused 100% mortality, and one of B. bassiana (Bb016) caused 95% mortality. The most virulent was Ma034, with an LC50 of 1.73×106 conidia/mL followed by Ma005 and Ma003. Ma005 and Ma034 were the fastest strains to reach LT50,achieving this in less than 3.7 days. Additionally, Ma034 and Ma014 strains were infectious to more than 70% of the eggs. Conclusions T. merganser and T. urticae are present in the papaya orchards of Campeche, México. The high susceptibility of T. merganser adult females and eggs toward several M. anisopliae s.l. or B. bassiana strains suggests that these fungi are a viable alternative to control this emergent pest. The most virulent strain, Ma034, was also infective to eggs, and is the most promising to be tested in the field.

show abstract

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High susceptibility of Tetranychus merganser (Acari: Tetranychidae), an emergent pest of the tropical crop Carica papaya, towards Metarhizium anisopliae s.l. and Beauveria bassiana strains

Alfaro-Valle

Martínez-Hernández

Otero-Colina

et al. 2022

PeerJ

View full text Add to dashboard Cite

show abstract

“…Biocontrol agents are generally discussed as safe alternatives for the management of pest mites (Wekesa et al ., 2015), as they are compared to selective chemical pesticides and can be the main component of integrated mite management programs (Ullah and Lim, 2017). Among different biocontrol agents, entomopathogenic fungi (EPF) have been considered as an inseparable part of integrated strategies for suppressing different mites and insect species (Wekesa et al ., 2006).…”

Section: Introductionmentioning

confidence: 99%

Biological responses of Tetranychus urticae (Acari: Tetranychidae) to sub-lethal concentrations of the entomopathogenic fungus Beauveria bassiana

Kheradmand

Heidari

Sedaratian-Jahromi

et al. 2021

Bull. Entomol. Res.

View full text Add to dashboard Cite

Tetranychus urticae (Acari: Tetranychidae) is one of the most important pests of agricultural crops with worldwide distribution causing considerable damage to different products. Application of chemical acaricides is one of the most important strategies used for the control of this pest. Entomopathogenic fungi, however, have been proposed as alternative control agents. In this study, sub-lethal effects (LC10 = 6.76 × 102, LC20 = 8.74 × 103, and LC30 = 55.38 × 103 conidia ml−1) of Beauveria bassiana strain TV on the life table parameters of T. urticae were evaluated under laboratory conditions. The results demonstrated that by increasing the concentration, a significant decline was observed in adult longevity of both male and female individuals. Total fecundity of T. urticae was calculated as 45.16, 36.28, 23.98, and 18.21 eggs in control, LC10, LC20, and LC30 treatments, respectively. Sub-lethal concentrations drastically affected the population parameters of this mite pest. The intrinsic rate of increase (r) ranged from 0.1983 to 0.1688 day−1 for the mites treated with distilled water and LC20 treatments, respectively. The net reproductive rate (R0) was affected by the sub-lethal concentrations (lower value at LC30 concentration: 11.19 offspring/individual). Considering the detrimental effects of B. bassiana on some biological parameters of T. urticae, it can be concluded that this product can be used to develop targeted interventions aimed at integrated pest management of this pest.

show abstract

A report onPurpureocillium lilacinumfound naturally infecting the predatory mite,Balaustium murorum(Parasitengona: Erythraeidae)

Yoder

Fisher

Dobrotka

2018

International Journal of Acarology

View full text Add to dashboard Cite

Mite Pathogens and Their Use in Biological Control

Cited by 5 publications

References 100 publications

High susceptibility of Tetranychus merganser (Acari: Tetranychidae), an emergent pest of the tropical crop Carica papaya, towards Metarhizium anisopliae s.l. and Beauveria bassiana strains

High susceptibility of Tetranychus merganser (Acari: Tetranychidae), an emergent pest of the tropical crop Carica papaya, towards Metarhizium anisopliae s.l. and Beauveria bassiana strains

Biological responses of Tetranychus urticae (Acari: Tetranychidae) to sub-lethal concentrations of the entomopathogenic fungus Beauveria bassiana

A report onPurpureocillium lilacinumfound naturally infecting the predatory mite,Balaustium murorum(Parasitengona: Erythraeidae)

Contact Info

Product

Resources

About