Diversity and Seasonal Abundance of Predacious Mites in Alabama Satsuma Citrus

Fadamiro, Henry Y.; Xiao, Yingfang; Nesbitt, Monte; Childers, Carl C.

doi:10.1603/008.102.0406

Cited by 33 publications

(23 citation statements)

References 32 publications

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“…Fadamiro et al (2009) reportaram forte associação e sincronia entre Typhlodromalus peregrinus (Muma) (Acari: Phytoseiidae) e P. citri, em citros no Alabama, indicando que o predador seria importante agente de controle bioló-gico do ácaro-praga.…”

Section: Resultsunclassified

Diversidade e dinâmica populacional de ácaros em pomar cítrico

2012

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ResumoAs plantas de citros hospedam diversas espécies de ácaros que causam sérios prejuízos à produção e qualidade de frutos no Brasil. Esta pesquisa teve por objetivo estudar a diversidade de ácaros e a dinâmica populacional das principais espécies de ácaros em pomar de citros, Citrus sinensis (L.) Osbeck, localizado no município de Descalvado, Estado Diversity and population dynamics of mites in citrus orchard AbstractThe citrus plants are hosts of several species of mites, which cause severe damage to production and quality of fruits in Brazil. The objective of this research was to study the diversity of mites and population dynamics of the main mite species in a citrus orchard, Citrus sinensis (L.) Osbeck, in Descalvado County, State of São Paulo, Brazil. Fourteen evaluations were conducted over a period of 12 months, from February 2007 to February 2008. At each assessment, ten leaves and five fruits were collected from the inner part of each citrus canopy, from a total of 40 marked plants. Thirty four mite species were found, which were distributed into 17 families. The most abundant species were: Phyllocoptruta oleivora (Ashmed) (Eriophyidae), Panonychus citri (McGregor) (Tetranychidae), Brevipalpus phoenicis (Geijskes) (Tenuipalpidae) and Fungitarsonemus sp. (Tarsonemidae). Among the predators, the Phytoseiidae family presented the highest richness (eight species) and the highest abundance (1,072 individuals). Euseius concordis (Chant) was the predominant species, corresponding to 98.3% of the mites of this family. Significant correlations were observed between the population densities of E. concordis and of the phytophagous mites P. citri, B. phoenicis and P. oleivora. Significant correlations were also observed between population densities of these mites and meteorological factors such as temperature and precipitation. The results indicate that E. concordis acts as a natural enemy of P. citri, B. phoenicis and P. oleivora in the citrus orchard.

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Section: Resultsunclassified

Diversidade e dinâmica populacional de ácaros em pomar cítrico

2012

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“…Proprioseiopsis mexicanus' biology has not been studied much. It was one of the prevailing phytoseiid species on citrus orchards in Alabama (Fadamiro et al 2009).…”

Section: Amblyseius Aeralismentioning

confidence: 99%

Influence of ground cover management on diversity and density of phytoseiid mites (Acari: Phytoseiidae) in Guadeloupean citrus orchards

et al. 2010

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The abundance and diversity of phytoseiid mites in the vegetal ground cover of a citrus orchard were surveyed by monthly samplings from October 2008 to July 2009. Six different vegetal cover management methods were studied: herbicide application without mowing (Gly), mowing without herbicide application (PV), mowing with herbicide application (AV), late mowing without herbicide application (LMV), cover crop (Neonotonia wightii, Fabaceae) without herbicide application (PNeo) and cover crop with herbicide application (ANeo). Eleven species were present in the ground cover, with Phytoseius rex and Proprioseiopsis mexicanus as major species. Species richness and densities (1.5 ± 4.5) in the Gly treatment were very low, except for one sample 4 months after herbicide treatment. The AV and PV treatments showed poor diversity and very low mite densities (1.2 ± 2.6 and 1.4 ± 1.5, respectively). The LMV treatment showed the highest diversity and high density of phytoseiid mites (6.9 ± 8.8). The ANeo and PNeo treatments also showed generally high diversity, but with variations in time and exhibited the highest density of phytoseiid mites (13.5 ± 12.7 and 13.4 ± 9.1, respectively). Neonotonia wightii as the cover crop seems to act as a reservoir of phytoseiid mites, sustaining abundant and diverse populations all year round. Some naturally occurring plant species such as Achyranthes aspera, Amaranthus dubius and Eleutheranthera ruderalis could also constitute favourable host plants for Phytoseiidae. Results are discussed in relation to the potential of collected phytoseiid species as candidates for biological control of phytophagous mites on Guadeloupean citrus orchards.

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“…(Muma, 1961). It was later reported by Lindquist and Chant (1964) in Jamaica on leaves of eggplant and Crotalaria sp., and by Fadamiro et al (2009) in Alabama, USA, on unidentified plants in citrus orchards. Aceodromus convolvuli was first reported in Brazil by Moraes et al (1993), on spontaneous plants growing in several states of the northeastern part of the country.…”

Section: Introductionmentioning

confidence: 99%

Population dynamics of Aceodromus convolvuli (Acari: Mesostigmata: Blattisociidae) on spontaneous plants associated with Jatropha curcas in central Brazil

et al. 2014

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Spontaneously growing plants are commonly considered competitors of cultivated plants. Owing to the lack of specificity of many arthropods, spontaneous plants may be attacked by the same arthropods that attack cultivated plants and they may also harbor natural enemies of organisms harmful to cultivated plants. Aceodromus convolvuli Muma (Blattisociidae) has been reported recently in relatively large numbers in Tocantins state, central Brazil, mostly on Helicteres guazumifolia Kunth (Malvaceae). Very little has been reported about the population dynamics of blattisociid mites under field conditions. The objective of this work was to study the population dynamics of A. convolvuli in Gurupi, Tocantins state, to evaluate its possible interaction with associated mites. Monthly samples were taken from leaves of the 11 most abundant and frequent spontaneous plants in a Jatropha curcas L. (Euphorbiaceae) plantation. About 96.5 % of the specimens of A. convolvuli were collected in the rainy season. The patterns of variation of the population of A. convolvuli and of predators belonging to the family Phytoseiidae were similar, but A. convolvuli was much more numerous than all phytoseiid specimens combined. Highly significant correlations were observed between A. convolvuli densities and relative humidity or diversity of spontaneous plants. When only mites on H. guazumifolia were considered, highly significant correlation was also observed between densities of A. convolvuli and of mites of the family Tetranychidae. The results suggested that A. convolvuli could be a predator of tenuipalpid and/or tetranychid mites. Studies about its biology are needed to determine its preferred food sources and potential as biological control agent.

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Diversity and Seasonal Abundance of Predacious Mites in Alabama Satsuma Citrus

Cited by 33 publications

References 32 publications

Diversidade e dinâmica populacional de ácaros em pomar cítrico

Diversidade e dinâmica populacional de ácaros em pomar cítrico

Influence of ground cover management on diversity and density of phytoseiid mites (Acari: Phytoseiidae) in Guadeloupean citrus orchards

Population dynamics of Aceodromus convolvuli (Acari: Mesostigmata: Blattisociidae) on spontaneous plants associated with Jatropha curcas in central Brazil

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