Laboratory and glasshouse evaluation of entomopathogenic fungi against the two-spotted spider mite,<i>Tetranychus urticae</i>(Acari: Tetranychidae), on tomato,<i>Lycopersicon esculentum</i>

Chandler, David; Davidson, Gill; Jacobson, Robert J.

doi:10.1080/09583150410001720617

Cited by 120 publications

(81 citation statements)

References 25 publications

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“…According to Feng (2006, 2009) some of the tested isolates of B. bassiana, Paecilomyces fumosoroseus (Wize) Brown and Smith and M. anisopliae have high lethal effect on eggs and females of T. urticae. Chandler et al (2005) found in a glasshouse experiment that Beauveria bassiana cultured from Naturalis-L (Troy Biosciences, USA) reduced the numbers of T. urticae adults, nymphs and eggs (98% reduction in all three cases) on glasshouse tomato crops.…”

Section: Introductionmentioning

confidence: 99%

“…Fries (=Paecilomyces farinosus), Hirsutella thompsonii Fisher, and Neozygites floridana Weiser and Muma often play an important role in decreasing native populations of phytophagous mites (Chandler et al, 2000;Van der Geest et al, 2000). Searching for microbial control agents in laboratory experiments it has been shown that some of the tested isolates of B. bassiana and M. anisopliae are highly virulent to the active stages of T. urticae (Alves et al, 2002a;Tamai et al, 2002;Chandler et al, 2005) and T. evansi Baker and Pritchard (Wekesa et al, 2005). According to Feng (2006, 2009) some of the tested isolates of B. bassiana, Paecilomyces fumosoroseus (Wize) Brown and Smith and M. anisopliae have high lethal effect on eggs and females of T. urticae.…”

Section: Introductionmentioning

confidence: 99%

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Susceptibility of Tetranychus urticae koch. (Acari: Tetranychidae) to isolates of entomopathogenic fungus Beauveria bassiana

Draganova

Simova

2010

PESTIC PHYTOMED

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SUMMARYBioassays with five isolates of the entomopathogenic fungus Beauveria bassiana (Bals.-Criv.) Vuillemin were conducted under laboratory conditions with a goal to estimate their virulence to the two-spotted spider mite Tetranychus urticae Koch. (Acari: Tetranychidae). Common bean plants with mites were treated by spraying conidial suspensions of isolates at concentrations of 10 6 , 10 7 and 10 8 conidia/ml. Lethal effects of the fungal isolates were evaluated as percentages of cumulative daily mortality due to mycoses, corrected for mortality in the control variant. Virulence of the isolates was estimated based on values of the median lethal time (LT 50 ) calculated by probit analysis for the variants treated with conidial suspensions at the concentration of 10 6 conidia/ml.The two-spotted spider mite was found susceptible to the examined isolates of the entomopathogenic fungus B. bassiana.Mycosis caused to T. urticae by the B. bassiana isolates 444 Bb and 445 Bb had fast lethal effect after treatment with conidial suspensions even at the concentration of 10 6 conidia/ ml. The mean mortality values of host individuals were 83.78 ± 3.62% and 68.49 ± 4.28% on the first day, respectively, and up to 100% in both variants on the fourth day.The isolates 426 Bb, 444 Bb and 445 Bb of B. bassiana were highly virulent to two-spotted spider mites with values of the median lethal time varied within overlapped narrow confidence intervals from 0.122 to 1.084 days (average value 0.162 days), from 0.117 to 1.398 days (average value 0.146 days) and from 0.106 to 1.162 days (average value 0.131 days), respectively. Significant differences regarding virulence of the three isolates at p-level < 0.05 could not been proved. The other two examined isolates were distinctly less virulent to T. urticae than these three B. bassiana isolates.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Susceptibility of Tetranychus urticae koch. (Acari: Tetranychidae) to isolates of entomopathogenic fungus Beauveria bassiana

Draganova

Simova

2010

PESTIC PHYTOMED

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“…Chandler et al (2005) applied a commercial product based on the strain ATCC 74040 twice at 7-day interval at a rate of 1×10 5 conidia/ml and achieved a reduction in the number of T. urticae motile forms on tomato by 85-97% 7 days after the second treatment. In trials on various crops (cucumber, tomato, eggplant), conidia of the B. bassiana isolate R444 were suspended in a silicone surfactant and applied at a rate of 4.2×10 6 conidia/ml.…”

Section: Discussionmentioning

confidence: 99%

“…Among them, Beauveria bassiana (Balsamo) Vuillemin (Ascomycota: Hypocreales) has proved to be a promising biocontrol agent against spider mites (Chandler et al, 2005;Maniania et al, 2008;Gatarayiha et al, 2010Gatarayiha et al, , 2011. Testing of the strain ATCC 74040 has confirmed its pathogeicity to T. urticae in the laboratory (Sáenz-de-Cabezón Irigaray et al, 2003;Chandler et al, 2005;Duso et al, 2008) and a high efficacy in reducing the species' populations on tomato in greenhouses (Chandler et al, 2005). However, data on the effects of this entomopathogenic fungus on P. ulmi are scarce.…”

Section: Introductionmentioning

confidence: 99%

Greenhouse and field evaluation of two biopesticides against Tetranychus urticae and Panonychus ulmi (Acari: Tetranychidae)

et al. 2012

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SUMMARYThe mycopesticide Naturalis (based on Beauveria bassiana strain ATCC 74040) and botanical pesticide Kingbo (based on oxymatrine, an alkaloid from Sophora flavescens, a traditional Chinese herb) were tested against the two-spotted spider mite (Tetranychus urticae) on greenhouse vegetables and the European red mite (Panonychus ulmi) on apples. These biopesticide products were applied twice at 5-day interval and concentrations of 0.1% and 0.2%, and their effectiveness was compared to abamectin-based products and the synthetic acaricides acrinathrin and spirodiclofen, applied once at their recommended rates. The mycopesticide Naturalis, applied at 0.1% concentration against T. urticae on cucumber, reduced mite population density by 85-86%, achieving 91-93% efficacy. In a trial on tomato, efficacy reached some 96%, while population density was reduced by 93%. In a field trial on apple, Naturalis demonstrated an increasing and long-lasting effectiveness against the summer population of P. ulmi of nearly 100%, and population reduction was achieved in assessments 30 days after the first treatment. Naturalis applied at a double rate achieved a somewhat better effect but only in the first trial. The botanical pesticide Kingbo, applied at 0.1% concentration, demonstrated very high control efficacy (≥98%) and population density reduction (≥96%) of T. urticae in both trials. A high and long-lasting effectiveness of this bioacaricide was also achieved in a trial on P. ulmi. Its concentration of 0.2% achieved similar effect. The results in these trials indicate that applications of the mycopesticide Naturalis and the botanical pesticide Kingbo can provide effective control of T. urticae on cucumber and tomato grown in greenhouses, as well as P. ulmi on apple.

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“…Sorokin, Hirsutella thompsonii Fisher and Lecanicillium lecanii (Zimm.) (Viegas) Zare & Gams have been screened against two-spotted spider mite and hold potential for their development as bioacaricides (Tamai et al, 2002a;Chandler et al, 2005;Gatarayiha et al, 2010). In Korea, it is also necessary to develop biological control mechanisms as a part of integrated pest management programs against the two-spotted spider mite.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Evaluation of Paecilomyces lilacinus HY-4 to Control Tetranychus urticae

Shin¹,

Lee²,

Ko³

et al. 2011

International Journal of Industrial Entomology

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The virulence against the two-spotted spider mite, Tetranychus urticae Koch, was evaluated with entomopathogenic fungus Paecilomyces lilacinus (Thom) Samson HY-4 which is isolated from coleopteran insect and registered to Korean and US patents. Virulence tests were conducted with conidial suspensions (1.5 ×10 6 conidia/ml) of P. lilacinus HY-4 against T. urticae adults and positive results were recorded in laboratory conditions. The spraying device was also developed for the efficient and exact evaluation of treatment. The developed spraying device was named as SD-tower sprayer and its efficacy of spraying conidia was evaluated. The accumulated mortality caused by P. lilacinus HY-4 using SD-tower spray was about 73% at 6 days after inoculation. This suggest that the isolate P. lilacinus HY-4 may be considered as promising for a new approach to prevent adult infestations by T. urticae.

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Laboratory and glasshouse evaluation of entomopathogenic fungi against the two-spotted spider mite,Tetranychus urticae(Acari: Tetranychidae), on tomato,Lycopersicon esculentum

Cited by 120 publications

References 25 publications

Susceptibility of Tetranychus urticae koch. (Acari: Tetranychidae) to isolates of entomopathogenic fungus Beauveria bassiana

Susceptibility of Tetranychus urticae koch. (Acari: Tetranychidae) to isolates of entomopathogenic fungus Beauveria bassiana

Greenhouse and field evaluation of two biopesticides against Tetranychus urticae and Panonychus ulmi (Acari: Tetranychidae)

Preliminary Evaluation of Paecilomyces lilacinus HY-4 to Control Tetranychus urticae

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