Biosystematics of<i>euseius</i>on California Citrus and avocado with the description of a new species (Acari: Phytoseiidae)

Congdon, B. D.; McMurtry, J. A.

doi:10.1080/01647958508683391

Cited by 41 publications

(16 citation statements)

References 25 publications

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“…1 and Table 1). This is similar to the situation in the northern Mediterranean region (McMurtry, 1977), California (Congdon and McMurtry, 1985), Florida (McCoy and Rakha, 1985), Brazil (Gravena, 1993), Morocco (McMurtry and Bountour, 1989) and Australia (Smith and Papacek, 1991) where one or more Euseius spp. are usually the most common phyt0seiids on citrus.…”

Section: Mite Distribution and Abundancesupporting

confidence: 51%

The distribution and abundance of phytoseiid mites (Acari: Phytoseiidae) on citrus in southern Africa and their possible value as predators of citrus thrips (Thysanoptera: Thripidae)

Grout

1994

Exp Appl Acarol

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Grout, T.G.. 1994. The distribution and abundance of phytoseiid mites (Acari: Phyloseiidae) on citrus in southern Africa and their possible value as predators of citrus thrips (Thysanoptera: Thripidae). Exp. Appl. Acarol., 18:61--71.On citrus in Zimbabwe, Swaziland and South Africa, predacious mites of the subfamily Amblyseiinae are more common and found in greatc, numbers than phytoseiids of the subfamily Phytoseiinae. The author's survey and other collection data indicated that within the Amblyseiinae the genus Euseius Wainstein is the most widely distributed. Seven Euseius spp. have been recorded on citrus in the above countries but not more than one species has been found at any particular site and time. E. cirri (Van der Merwe and Ryke) has the broadest geographical distribution and is capable of suppressing population levels of the citrus thrips Scirtothrips atwantii Faure. However, it is not as effective a biocontrol agent as E. addoensis Wan der Merwe and Ryke) which occurs in higher numbers further south. An orchard comparison of the non-target effects of thripicides showed that E. cirri was more susceptible to sabadilla alkaloids (0.0024% AI) plus sugm-(0.96%) than to tartar emetic (0.398% A]) plus sugar (0.4%). The author's survey provides the first records of E. orygmus ~Ueckermann and Loots) and E. tutsi (Pritchard and Baker) on citrus in Zimbabwe. Typhlodromalus Muma spp. were not widely distributed but where they did occur they were often abundant and sometimes coexisted with Euseiu~" spp. Circumstantial evidence indicated that Typhlodmmalus spp+ may be effective thrips predators. The combination of Euseius and T.,;phlodromalus spp. may provide more effective biological control of citrus thrips than either species alone. Ambl),dromella Muma spp. were the only representatives of the subfamily Phytoseiinae currently found on citrus and they occurred only in the Transwtal and Natal provinces of South Africa. The possibility that Amblydromella spp. compete with Amblyseiinae is discussed.

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Section: Mite Distribution and Abundancesupporting

confidence: 51%

The distribution and abundance of phytoseiid mites (Acari: Phytoseiidae) on citrus in southern Africa and their possible value as predators of citrus thrips (Thysanoptera: Thripidae)

Grout

1994

Exp Appl Acarol

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“…The species with R1 inserted on this shield are: E. alatus; E. neofustis; and E. plaudus Denmark and Muma, 1973. The species with r3 inserted on this shield are: E. obispensis; and E. tularensis Congdon in Congdon and McMurtry, 1985. The species with setae r3 and R1 both inserted on this shield are: E. errabundus (Fig.…”

Section: Amblyseius (Amblyseius) Section Euseiusmentioning

confidence: 98%

A review of the subfamily Amblyseiinae muma (Acari: Phytoseiidae): Part VI. the tribe Euseiini n. tribe, subtribes Typhlodromalina n. subtribe, Euseiina n. subtribe, and Ricoseiina n. subtribe

Chant¹,

McMurtry²

2005

International Journal of Acarology

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“…Moraes (1987) citou que estudos de variações morfológicas entre e dentro de populações de predadores fitoseídeos mostram consideráveis variações dentro de populações de acordo com a distribuição geográfica, estação e planta hospedeira. Para o esclarecimento de certas dúvidas, freqüentemente consideram-se aspectos ecológicos e biológicos (McMurtry 1980, Congdon & McMurtry 1985, Moraes 1987. Estudos de cruzamentos e, mais recentemente, de caracterização molecular têm sido realizados com populações de ácaros em complemento à caracterização morfológica (Navajas et al 1999, Navajas & Fenton 2000.…”

Section: Palavras-chave: Controle Biológico áCaro Fitoseídeo Predadorunclassified

Compatibilidade Reprodutiva Entre Populações de Euseius citrifolius Denmark & Muma (Acari: Phytoseiidae)

Noronha¹,

Moraes²

2002

Neotrop. Entomol.

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-The objective of this study was to verify the reproductive compatibility between populations of Euseius citrifolius Denmark & Muma, to ascertain that they belonged to the same species. The individuals collected in the field were identified as E. citrifolius based on morphological characters. Populations were collected from Bauhinia sp. in Arroio do Meio -RS, Coffea arabica L. in Campinas -SP and Terminalia catappa L. in Petrolina -PE, Brazil. Homogamic and heterogamic crosses and backcrosses were conducted to evaluate reproduction for a period of 10 days. Oviposition rates in homogamic crosses were generally higher than in heterogamic crosses. Partial incompatibility was observed in heterogamic crosses involving females from Petrolina; they did not produce offspring when backcrossed with males of parental populations. This apparent incompatibility can be due to intrinsic characteristics represented by difference in genomic population. So, the populations studied belong to the same species, and the gene flow can occur between populations from Petrolina and Arroio do Meio, as well as between populations from Campinas and Petrolina. Study for detection of Wolbachia and molecular characterization of this populations may be a good tool for the understanding of incompatibility results.KEY WORDS: Biological control, mite, phytoseiid, predator RESUMO -O objetivo deste estudo foi verificar a compatibilidade reprodutiva entre algumas populações de Euseius citrifolius Denmark & Muma, para comprovação de que pertencem a uma mesma espécie. Os exemplares coletados em campo foram identificados como E. citrifolius com base em caracteres morfológicos. As populações foram coletadas de Bauhinia sp. em Arroio do Meio -RS, Coffea arabica L. em Campinas -SP e Terminalia catappa L. em Petrolina -PE. Cruzamentos e retrocruzamentos foram realizados para avaliar a reprodução destes ácaros durante um período de dez dias. Os níveis de oviposição nos cruzamentos homogâmicos foram maiores que nos cruzamentos heterogâmicos. Observou-se incompatibilidade reprodutiva parcial nos cruzamentos heterogâmicos envolvendo fêmeas de Petrolina; elas não produziram descendentes quando retrocruzadas com indivíduos das populações parentais. Essa incompatibilidade aparente pode ter-se devido às características intrínsecas representadas por diferenças no genoma das populações. As populações estudadas pertencem, pois, à uma mesma espécie, e o fluxo gênico pode ocorrer entre as populações de Petrolina e Arroio do Meio e de Campinas e Petrolina. Estudos para detecção de Wolbachia e de caracterização molecular dessas populações poderão fornecer informações que auxiliem no entendimento das incompatibilidades.

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Biosystematics ofeuseiuson California Citrus and avocado with the description of a new species (Acari: Phytoseiidae)

Cited by 41 publications

References 25 publications

The distribution and abundance of phytoseiid mites (Acari: Phytoseiidae) on citrus in southern Africa and their possible value as predators of citrus thrips (Thysanoptera: Thripidae)

The distribution and abundance of phytoseiid mites (Acari: Phytoseiidae) on citrus in southern Africa and their possible value as predators of citrus thrips (Thysanoptera: Thripidae)

A review of the subfamily Amblyseiinae muma (Acari: Phytoseiidae): Part VI. the tribe Euseiini n. tribe, subtribes Typhlodromalina n. subtribe, Euseiina n. subtribe, and Ricoseiina n. subtribe

Compatibilidade Reprodutiva Entre Populações de Euseius citrifolius Denmark & Muma (Acari: Phytoseiidae)

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