Species Of Phytoseiid Mites Research Articles

Four new records and two new species of Phytoseiidae (Acari: Mesostigmata) from Turkey, with a key to the Turkish species.

Four species of phytoseiid mites namely Neoseiulus knappi Zannou, Moraes, Ueckermann & Oliveira, Typhlodromus (Typhlodromus) octogenipilus Kreiter, Tixier & Duso, Typhlodromus (T.) phialatus Athias-Henriot, and Typhloseiella isotricha (Athias-Henriot) are recorded for the first time from Turkey. Two new species Neoseiulus sekeroglui Döker & Stathakis n. sp. and Typhlodromus (Typhlodromus) antakyaensis Stathakis & Döker n. sp. are described and illustrated. A key to the all known phytoseiid species for the Turkish fauna is also provided.

A new species of Neoseiulus (Acari: Mesostigmata: Phytoseiidae) with a key for the Brazilian species of the genus

Neoseiulus HUGHES, 1948 is currently one of the largest genus of Phytoseiidae Berlese. Neoseiulus demitei sp. nov., a new species of phytoseiid mite from Rio Grande do Sul State, Brazil, is illustrated and described based on specimens collected on Tibouchina sp. (Melastomataceae) plants. This new species differs from others by having most of propodossomal setae reaching the base of nearby setae and a constriction of ventrianal shield at level of preanal pores. Nevertheless, this new species is the first of the species subgroup kennetti described from Brazil. A key of Neoseiulus species reported in Brazil is also included.

A new species of predaceous mite of the genus Neoseiulus Hughes (Acari, Phytoseiidae), with redescriptions of N. magnanalis (Thor) andN. ellesmerei (Chant & Hansell), from Svalbard, High Arctic.

A new species of phytoseiid mite of the genus Neoseiulus (Acari, Phytoseiidae) found in Svalbard is described and illustrated. Redescriptions, drawings, measurements, and diagnosis of two related species, N. magnanalis (Thor) and N. ellesmerei (Chant & Hansell) are given. A neotype is designated for N. magnanalis.

Population survey of phytoseiid mites and spider mites on peach leaves and wild plants in Japanese peach orchard

A population survey of phytoseiid mites and spider mites was conducted on peach leaves and wild plants in Japanese peach orchards having different pesticide practices. The phytoseiid mite species composition on peach leaves and wild plants, as estimated using quantitative sequencing, changed during the survey period. Moreover, it varied among study sites. The phytoseiid mite species compositions were similar between peach leaves and some wild plants, such as Veronica persica, Paederia foetida, Persicaria longiseta, and Oxalis corniculata with larger quantities of phytoseiid mites, especially after mid-summer. A PCR-based method to detect the ribosomal ITS sequences of Tetranychus kanzawai and Panonychus mori from phytoseiid mites was developed. Results showed that Euseius sojaensis (specialized pollen feeder/generalist predator) uses both spider mites as prey in the field.

Different feeding behaviors in a single predatory mite species. 1. Comparative life histories of three populations of Phytoseiulus longipes (Acari: Phytoseiidae) depending on prey species and plant substrate

The spider mites Tetranychus evansi and T. urticae are key pests of tomato crops, for which no sustainable practical control strategy is available yet. A Brazilian (B) and an Argentinean (A) population of a phytoseiid predatory mite species, Phytoseiulus longipes, are able to develop and reproduce on T. evansi on tomato, whereas a Chilean (C) population is not. In order to better characterize the two distinct feeding behaviours of these three populations, life table data were assessed when the predator was offered T. evansi or T. urticae as prey on bean or tomato leaves. No effect of the prey offered nor the plant substrate was demonstrated on development durations of the three populations. However, immature mortality was low for the Argentinean and the Brazilian populations whatever the prey or plant substrate, whereas 89 % of P. longipes from Chile died before reaching adulthood when fed T. evansi on tomato. No difference in effect on female longevity was detected among the three populations. Finally, the demographic parameters of all populations were lower in presence of tomato compared to beans. Possible explanations for these results are discussed.

Effect of different plant pollens on the development and oviposition of seven native phytoseiid species (Acari: Phytoseiidae) in Japan

The quality of pollen of tea (Camellia sinensis L.), big leaf podocarp tree [Podocarpus macrophyllus (Thumb.)] and sweet corn (Zea mays L.) as alternative food sources was evaluated for seven native phytoseiid mite species, Amblyseius eharai Amitai and Swirski, Euseius sojaensis (Ehara), Neoseiulus californicus (McGregor), Neoseiulus womersleyi (Schicha), Phytoseius nipponicus Ehara, Chanteius contiguus (Chant) and Typhlodromus vulgaris Ehara. Tea pollen was of high nutritional value for all seven phytoseiid species: most larvae developed to adults and most females oviposited well. Development and oviposition differed greatly among phytoseiid species when reared on big leaf podocarp tree pollen: A. eharai, T. vulgaris and C. contiguus could utilize the pollen as food, but the other phytoseiid species could not. In addition, big leaf podocarp tree pollen could be utilized by A. eharai as food for longer than the other pollen. The quality of sweet corn pollen was inferior in general, although it could somehow favor the development and oviposition of six phytoseiid species except for E. sojaensis.

Description of a new species of Transeius (Acari: Phytoseiidae) from the State of Rio Grande do Sul, Brazil

A new species of phytoseiid mites (Acari: Phytoseiidae) Transeius gervasioi sp. nov. is described from the State of Rio Grande do Sul, Brazil, based on specimens collected on Cichorium intybus L. (Asteraceae) and Plantago sp. (Plantaginaceae) plants. A key to Brazilian species of the genus is provided. http://zoobank.org/urn:lsid:zoobank.org:pub:5A59AFFF-F981-4273-917D-838602FAA99B

Redescription of four species of phytoseiid mites (Acari: Mesostigmata) associated with alfalfa farms in western Iran

Four phytoseiid species, Amblyseius obtusus , Neoseiulus marginatus , N. sugonjaevi and N. zwoelferi were recorded and redescribed from alfalfa, Medicago sativa , in western Iran. Neoseiulus zwoelferi was determined as the abundant and widespread species in this region.

COI barcoding as a molecular assay for the identification of phytoseiid mites

Abstract Phytoseiid mites are the most studied family within the order Mesostigmata, especially because of their major interest for biological control programs. Phytoseiid mite species identification is essentially based on morphological characters. However, the development of faster and more accurate methods is under way. Molecular identification techniques, such as barcoding, are also used to improve mite diagnosis. The number of phytoseiid mite sequences used for diagnostic purpose has increased recently, but not all of them are reliable in the absence of voucher specimens or inaccurate taxonomy identification. In this study, we considered 14 common phytoseiid species collected from agricultural, urban, and wild ecosystems in different parts of China. We extracted genomic DNA from the mites and retained the mite specimens as vouchers to ensure the credibility of molecular data. Commonly used COI sequences were used as the most used barcoding marker. The results show that COI sequences are effective and...

A new record and two new species of the genus Typhlodromus Scheuten (Acari: Phytoseiidae) from Greece

A new species of phytoseiid mites, Typhlodromus (Typhlodromus) octagenipilus Kreiter, Tixier and Duso, is recorded for the first time from Greece. Two new species, Typhlodromus (Anthoseius) dactyliocalyx sp. nov. and Typhlodromus (Typhlodromus) sirikariensis sp. nov., are described and illustrated. A key to all species of the genus Typhlodromus Scheuten reported from Greece is provided.

Phytoseiid mites (Acari: Phytoseiidae) found in soil and litter from Atibaia, State of São Paulo, Brazil, with description of two new species

Ten species of phytoseiid mites were found in the litter and soil of a coffee plantation (Coffea arabica L., Rubiaceae) in the State of São Paulo, Brazil. Two new species of phytoseiid mite, Amblyseius atibaiensis sp. nov. and Amblyseius terricola sp. nov., are described, and Amblyseius waltersi Schicha is reported for the first time in Brazil.

A new species of Neoseiulus Hughes, with records of seven species of predatory mites associated with date palm in Saudi Arabia (Acari: Phytoseiidae)

Eight species of phytoseiid mites are reported from date palm orchards in Saudi Arabia. Seven of them were first records forthis country: Neoseiulus bicaudus (Wainstein), N. conterminus (Kolodochka), N. makuwa (Ehara), N. rambami (Swirski &Amitai), Proprioseiopsis asetus (Chant), P. messor (Wainstein), P. ovatus (Garman). Neoseiulus makuwa and P. asetus arerecorded from the Middle East and North Africa for the first time. One new species is described from Bermuda grass, Neoseiu-lus saudiensis n. sp. The new species is most similar to Neoseiulus alpinus (Schweizer) and N. marginatus (Wainstein). A key for identification of the included species is provided.

Can climate change jeopardize predator control of invasive herbivore species? A case study in avocado agro-ecosystems in Spain

Climate change is one of the most important factors affecting the phenology, distribution, composition and diversity of organisms. In agricultural systems many pests and natural enemies are arthropods. As poikilotherm organisms, their body temperature is highly dependent on environmental conditions. Because higher trophic levels typically have lower tolerance to high temperatures than lower trophic levels, trends towards increasing local or regional temperatures may affect the strength of predator/prey interactions and disrupt pest control. Furthermore, increasing temperatures may create climate corridors that could facilitate the invasion and establishment of invasive species originating from warmer areas. In this study we examined the effect of environmental conditions on the dynamics of an agro-ecosystem community located in southern Spain, using field data on predator/prey dynamics and climate gathered during four consecutive years. The study system was composed of an ever-green tree species (avocado), an exotic tetranychid mite, and two native species of phytoseiid mites found in association with this new pest. We also present a climatological analysis of the temperature trend in the area of study during the last 28 years, as evidence of temperature warming occurring in the area. We found that the range of temperatures with positive per capita growth rates was much wider in prey than in predators, and that relative humidity contributed to explain the growth rate variation in predators, but not in prey. Predator and prey differences in thermal performance curves could explain why natural enemies did not respond numerically to the pest when environmental conditions were harsh.

New records of phytoseiid mites (Acari: Phytoseiidae) from Cyprus

Predatory mites of the family Phytoseiidae are important biological control agents of phytophagous arthropods including mites. A survey on phytoseiid mites associated with different crops was carried out in many localities in Cyprus during 2009 and 2010. Five species are recorded for the first time from various plants in Cyprus: Neoseiulus californicus (McGregor), N. cucumeris (Oudemans), Iphiseius degenerans (Berlese), Phytoseiulus persimilis Athias-Henriot and Phytoseius plumifer (Canestrini & Fanzago). In all cases, these phytoseiid mite species were found in great abundance.

New records of phytoseiid mites from Greece with description of Typhlodromus (Anthoseius) creticus sp. nov. (Acari: Phytoseiidae)

Two species of phytoseiid mites, Neoseiulus leucophaeus (Athias-Henriot) and Typhloseiulus eleonorae (Ragusa & Swirski), are recorded for the first time from Greece. A new species, Typhlodromus (Anthoseius) creticus sp. nov., is described and illustrated.

Efeito de acaricidas sobre Schizotetranychus hindustanicus (Hirst) (Acari: Tetranychidae) e ácaros predadores em citros no Estado de Roraima, Brasil

O ácaro-hindustânico-dos-citros, Schizotetranychus hindustanicus (Hirst), é uma praga de importância quarentenária, recentemente introduzida no Brasil. Até a condução do presente estudo, não havia informações na literatura sobre a eficiência de acaricidas no controle de S. hindustanicus, em condições de campo. O estudo teve por objetivo avaliar o efeito de alguns acaricidas, utilizados em pomares de citros no país, sobre o ácaro-praga e ácaros predadores (Phytoseiidae) presentes na cultura. O experimento foi conduzido em um pomar de citros (limão-tahiti), em Boa Vista, RR. Os acaricidas testados e respectivas concentrações (g i.a./100 L de água) foram: mancozebe (200), abamectina (0,36), espirodiclofeno (6), enxofre (400) e dimetoato (80). A aplicação foi realizada com equipamento acoplado a um trator, provido de pistolas, aplicando-se 10 litros de calda por planta. O delineamento estatístico foi inteiramente casualizado com seis tratamentos e cinco repetições. As avaliações foram realizadas aos 1, 4, 7, 14, 28, 42 e 56 dias após a aplicação (DAA). Em cada avaliação, foram coletados 20 folhas e 10 frutos por parcela, contando-se o número de ácaros S. hindustanicus e fitoseídeos. Todos os produtos reduziram significativamente a população do ácaro-hindustânico nas folhas até 28 DAA. Os acaricidas dimetoato e espirodiclofeno foram altamente eficientes no controle de S. hindustanicus, sendo que o espirodiclofeno apresentou um período de controle mais longo que dimetoato. Com relação aos ácaros predadores, dimetoato, enxofre e abamectina causaram mortalidades significativas (72 a 100%) aos fitoseídeos, até 4 DAA. A espécie predominante de fitoseídeo foi Euseius concordis (Chant), correspondendo a 71% dos ácaros observados.

Introduction of Non-native Predatory Mites for Pest Control and its Risk Assessment in Japan

The use of natural enemies instead of chemical pesticides has been increasing worldwide. Although non-native natural enemies are beneficial and commonly used as biological control agents, the risks of non-target effects caused by their release are of growing concern. Phytoseiid mites are a very common choice as introduced biological control agents. In Japan, 8 species of non-native phytoseiid mites, one of which is the same as the native type but originates from a non-native population, have been introduced for crop pest control. There is concern about the influence of the introduced phytoseiid mites on native phytoseiid mites that occupy a similar habitat, but very few risk assessments of these phytoseiid mites have been carried out in Japan. In this paper, we estimate the risks of the non-target effect caused by the release of these introduced non-native phytoseiid mites by using the risk indexes proposed by Mochizuki (2010), and briefly present the results of monitoring the species considered at risk from the release of non-natives.

Two new species of phytoseiid mites (Acari: Phytoseiidae) from the State of São Paulo, Brazil

Two new species of phytoseiid mites, Amblyseius ica and Typhloseiopsis dorsoreticulatus, from the State of São Paulo, Brazil, are described and illustrated. Amblyseius ica belongs to the americanus species group and dombeyus species subgroup, being the second species of that subgroup. Typhloseiopsis dorsoreticulatus is the first species of the genus Typhloseiopsis recorded outside Central America.

Selectivity of rynaxypyr for three species of phytoseiid mites relevant to coffee in Brazil.

Among the predaceous mites, those of the Phytoseiidae family are the most important and studied. The phytophagous mites Brevipalpus phoenicis (Geijskes, 1939) (Tenuipalpidae) and Oligonychus ilicis (McGregor, 1917) (Tetranychidae), on coffee trees ( Coffea spp.), are frequently found in combination with the predaceous mites Iphiseiodes zuluagai Denmark & Muma, 1972, Amblyseius herbicolus (Chant, 1959) and Euseius citrifolius Denmark & Muma, 1970, among others. The purpose of this research was to study the effects of the insecticide rynaxypyr (chlorantraniliprole 200 SC) on these three species of Phytoseiidae, relevant to coffee and citrus, following standard laboratory procedures. Mated female mites were exposed to fresh-dried residues on a glass surface, with 7 treatments, 5 mites per glass plate and 6 replicates, in a completely randomized experimental design. Each test lasted 8 days, with a daily count of the surviving females and of eggs laid. Rynaxypyr, in all tested concentrations (15, 30, 50, 100 and 500 mg a.i./liter of water), was selective for the studied species, A. herbicolus , I. zuluagai , and E. citrifolius . Overall the treatments resulted in low mortality rates and negligible impact on the reproduction. Therefore, based on IOBC standards, rynaxypyr can be classified as not harmful (Class 1), comparable to the agrochemical hexythiazox equivalent to a harmless standard of selectivity in the laboratory. Rynaxypyr is therefore a complement to programs of integrated pest management, to preserve the populations of predatory mites in crops of coffee and citrus, among others, in Brazil.

Phytoseiid mite species composition in Japanese peach orchards estimated using quantitative sequencing

We attempted a population survey of spider mites and phytoseiid mites in Japanese peach orchards with different pesticide practices; however, we had difficulty discriminating phytoseiid mites. To estimate phytoseiid mite species composition, ribosomal gene fragments were amplified from genomic DNA of five phytoseiid mite species using PCR. Cloning and nucleotide sequencing of amplified fragments identified species-specific polymorphic sites. Newly amplified fragments from recombinant plasmids were mixed in various ratios to produce standard DNA template mixtures. After direct sequencing, the signal ratios between two nucleotides at each species-specific polymorphic site were calculated and shown against the corresponding expected ratios. Quadratic regression equations were used to estimate the phytoseiid mite species composition. Results showed that the phytoseiid mite species composition changed during the survey period and varied among study sites.