New Records of Pathogenic Fungi in Mites (Arachnida: Acari) from Brazil

Geest, L.P.S. van der; Moraes, Gilberto José de; Návia, Denise; Tanzini, Marcel R.

doi:10.1590/s1519-566x2002000300025

Cited by 16 publications

(2 citation statements)

References 2 publications

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“…O fungo H. thompsonii tem sido citado como um importante agente de controle de ácaros eriofídeos (Geest et al 2002). Sua ocorrência é favorecida em altos níveis de umidade, que por sua vez também favorece o desenvolvimento de C. heveae.…”

Section: Seringueiraunclassified

Ácaros (Acari) de dois sistemas de cultivo da seringueira no noroeste do estado de São Paulo

Bellini¹,

Moraes²,

Feres³

2005

Neotrop. Entomol.

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-The cultivation of rubber trees (Hevea brasiliensis Muell. Agr.) has increased considerably in northwestern State of São Paulo. The objective of this work was to evaluate the mite fauna in two cultivation systems commonly found in this region, one in monocrop and other in which it is intercropped with "gariroba", Syagrus oleracea (Mart.) Becc. The study was conducted between May 2002 and April 2003, taking monthly samples of 150 leaflets of rubber tree of each plantation and 150 leaflets of gariroba. The faunas of the two systems were similar; the numbers of species, genera and families, as well as the most diverse and abundant families were also similar. Eighteen species were found exclusively on "gariroba". The number of mites on the latter was considerably smaller but species richness was larger than on rubber tree. Of the most frequent and abundant mites on rubbe tree, Eutetranychus banksi (McGregor) and Pronematus sp. were the only ones also frequent on gariroba, but much less abundant. None of the predators abundant on rubber tree (Zetzellia aff. yusti, Euseius citrifolius Denmark & Muma, Pronematus sp. e Spinibdella sp.) were significantly abundant on gariroba. The fungus Hirsutella thompsonii Fisher was the only mite pathogen found in this study, attacking Calacarus heveae Feres. Apparently, in the way it is cultivated in the region, gariroba does not represent an adequate reservoir of the most important predatory mites on rubber tree. KEY WORDS: Biological control, Euphorbiaceae, pest management, alternative substrate, Syagrus oleracea RESUMO -A cultura da seringueira (Hevea brasiliensis Muell. Agr.) vem se expandindo consideravelmente no noroeste do estado de São Paulo. O objetivo deste trabalho foi avaliar a fauna de ácaros em dois sistemas comuns de cultivo nessa região, um em monocultivo e outro em consórcio com gariroba (Syagrus oleracea (Mart.) Becc. O estudo foi conduzido entre maio de 2002 e abril de 2003, tomando-se amostras mensais de 150 folíolos de seringueira de cada plantação e 150 folíolos de gariroba. As faunas dos dois sistemas foram semelhantes; os números de espécies, gêneros e famílias, assim como as famílias mais diversas e mais abundantes foram semelhantes entre eles. Dezoito espécies ocorreram exclusivamente em plantas de gariroba. O número de ácaros sobre estas foi consideravelmente menor, mas a riqueza de espécies foi maior que em seringueiras. Dentre as espécies mais freqüentes e abundantes em seringueira, Eutetranychus banksi (McGregor) e Pronematus sp. foram as únicas também freqüentes em gariroba, porém bem menos abundantes. Nenhum dos predadores abundantes em seringueira (Zetzellia aff. yusti, Euseius citrifolius Denmark & Muma, Pronematus sp. e Spinibdella sp.) foi abundante em gariroba. O fungo Hirsutella thompsonii Fisher foi o único patógeno de ácaros encontrado neste estudo, atacando Calacarus heveae Feres. Aparentemente, na forma como cultivada na região, a gariroba não constitui um reservatório adequado dos ácaros predadores mais importantes em seringueira.

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Section: Seringueiraunclassified

Ácaros (Acari) de dois sistemas de cultivo da seringueira no noroeste do estado de São Paulo

Bellini¹,

Moraes²,

Feres³

2005

Neotrop. Entomol.

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“…In Itiquira, in the state of Mato Grosso, Tanzini et al (2000) and Demite and Feres (2008) reported infestation by Hirsutella thompsonii Fisher on the mites Phyllocoptruta seringueirae Feres, 1998, C. heveae, and T. heveae. In the state of São Paulo H. thompsonii, has been observed infesting C. heveae mites collected on rubber trees (van der Geest et al, 2002;Bellini et al, 2005). In this work, one specimen of the predatory mite Agistemus sp.…”

Section: Resultsmentioning

confidence: 80%

Mites (Arachnida: Acari) collected on rubber trees Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg. in Santana, Amapá state, Brazil

Deus

Souza

Mineiro³

et al. 2012

Braz. J. Biol.

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The purpose of this study was to elaborate a preliminary list of the mite species associated with rubber trees in the municipality of Santana, in the state of Amapá, Brazil. Two collections of rubber tree leaves were conducted on May 2 nd and June 5 th , 2010. Twenty-five plants were sampled at random. Three leaves were collected per plant, from the lower third of the crown. The samples were placed in paper bags, packed in an isothermal box chilled gel-based pulp plant (Gelo-X ® ), and transported to the Entomology Laboratory at Embrapa Amapá, in Macapá. The leaflets were examined under a stereomicroscope, and the mites found on the adaxial and abaxial surfaces of the leaves were collected with a stilet, mounted on microscope slides in Hoyer's medium, and later identified. We collected a total of 1,722 mites of 10 families: Acaridae, Cunaxidae, Eriophyidae, Iolinidae, Phytoseiidae, Stigmaeidae, Tarsonemidae, Tenuipalpidae, Tydeidae, and Winterschmidtiidae, in addition to unidentified species of the suborders Oribatida and Astigmatina. The family Phytoseiidae represented only 2.90% of specimens collected, but showed the highest species richness (5 species

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Inter‐ and intraspecific variation of spider mite susceptibility to fungal infections: Implications for the long‐term success of biological control

Zélé

Altıntaş

Santos

et al. 2020

Ecology and Evolution

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Spider mites are severe pests of several annual and perennial crops worldwide, often causing important economic damages. As rapid evolution of pesticide resistance in this group hampers the efficiency of chemical control, alternative control strategies, such as the use of entomopathogenic fungi, are being developed. However, while several studies have focused on the evaluation of the control potential of different fungal species and/or isolates as well as their compatibility with other control methods (e.g., predators or chemical pesticides), knowledge on the extent of inter‐ and intraspecific variation in spider mite susceptibility to fungal infection is as yet incipient. Here, we measured the mortality induced by two generalist fungi, Beauveria bassiana and Metarhizium brunneum, in 12 spider mite populations belonging to different Tetranychus species: T. evansi, T. ludeni, and T. urticae (green and red form), within a full factorial experiment. We found that spider mite species differed in their susceptibility to infection by both fungal species. Moreover, we also found important intraspecific variation for this trait. These results draw caution on the development of single strains as biocontrol agents. Indeed, the high level of intraspecific variation suggests that (a) the one‐size‐fits‐all strategy may fail to control spider mite populations and (b) hosts resistance to infection may evolve at a rapid pace. Finally, we propose future directions to better understand this system and improve the long‐term success of spider mite control strategies based on entomopathogenic fungi.

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New Records of Pathogenic Fungi in Mites (Arachnida: Acari) from Brazil

Cited by 16 publications

References 2 publications

Ácaros (Acari) de dois sistemas de cultivo da seringueira no noroeste do estado de São Paulo

Ácaros (Acari) de dois sistemas de cultivo da seringueira no noroeste do estado de São Paulo

Mites (Arachnida: Acari) collected on rubber trees Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg. in Santana, Amapá state, Brazil

Inter‐ and intraspecific variation of spider mite susceptibility to fungal infections: Implications for the long‐term success of biological control

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