scholarly journals Biological performance of the predatory mites Amblyseius largoensis and Euseius concordis fed on eggs of Aleurodicus cocois

2018 ◽  
Vol 23 (11) ◽  
pp. 2099
Author(s):  
Josiane Pacheco De Alfaia ◽  
Maria Edvania Barros Neves ◽  
Luana Lima Melo ◽  
Debora Barbosa Lima ◽  
Nivia Da Silva Dias ◽  
...  

No abstract, but the first three sentences are shown below:Giant whiteflies, Aleurodicus cocois, commonly occur in some fruit trees, especially on cashew trees, and are actually recognized as a key pest in this crop. It is possible that some of the phytoseiid species that commonly occur on cashew trees have the potential to be used to control the giant whitefly. Amblyseius largoensis and Euseius concordis has been suggested as potential natural enemies of the giant whitefly. Thus, the present study evaluated the development and reproduction of A. largoensis and E. concordis when fed exclusively on giant whitefly eggs. 

2007 ◽  
Vol 98 (1) ◽  
pp. 83-96 ◽  
Author(s):  
L.M. Lawson-Balagbo ◽  
M.G.C. Gondim ◽  
G.J. de Moraes ◽  
R. Hanna ◽  
P. Schausberger

AbstractCoconut is an important crop in tropical and subtropical regions. Among the mites that infest coconut palms, Aceria guerreronis Keifer is economically the most important. We conducted surveys throughout the coconut growing areas of Brazil. Samples were taken from attached coconuts, leaflets, fallen coconuts and inflorescences of coconut palms in 112 localities aiming to determine the occurrence and the distribution of phytophagous mites, particularly A. guerreronis, and associated natural enemies. Aceria guerreronis was the most abundant phytophagous mite followed by Steneotarsonemus concavuscutum Lofego & Gondim Jr. and Steneotarsonemus furcatus De Leon (Tarsonemidae). Infestation by A. guerreronis was recorded in 87% of the visited localities. About 81% of all predatory mites belonged to the family Phytoseiidae, mainly represented by Neoseiulus paspalivorus De Leon, Neoseiulus baraki Athias-Henriot and Amblyseius largoensis Muma; 12% were Ascidae, mainly Proctolaelaps bickleyi Bram, Proctolaelaps sp nov and Lasioseius subterraneus Chant. Neoseiulus paspalivorus and N. baraki were the most abundant predators on attached coconuts. Ascidae were predominant on fallen coconuts, while A. largoensis was predominant on leaflets; no mites were found on branches of inflorescences. Leaflets harboured higher mite diversity than the attached coconuts. Mite diversity was the highest in the state Pará and on palms surrounded by seasonal forests and Amazonian rain-forests. Neoseiulus paspalivorus, N. baraki and P. bickleyi were identified as the most promising predators of A. guerreronis. Analyses of the influence of climatic factors revealed that dry ambient conditions favour the establishment of A. guerreronis. Neoseiulus paspalivorus and N. baraki have differing climatic requirements; the former being more abundant in warm and dry areas, the latter prevailing in moderately tempered and humid areas. We discuss the significance of our findings for natural and biological control of A. guerreronis.


2005 ◽  
Vol 58 ◽  
pp. 299-305 ◽  
Author(s):  
L.E. Jamieson ◽  
J.G. Charles ◽  
P.S. Stevens ◽  
C.E. McKenna ◽  
R. Bawden

Citrus red mite (CRM) populations can reach high levels in citrus orchards after the application of broadspectrum pesticides to control other pests It is important to know which are the key biocontrol agents of CRM in New Zealand in order to minimise use of pesticides toxic to these natural enemies CRM and natural enemies were monitored in seven orchards from January 2004 to March 2005 Ladybirds Stethorus sp and Halmus chalybeus and predatory mites Agistemus longisetus Amblyseius largoensis and Phytoseiulus persimilus were observed consuming CRM Stethorus sp and A longisetus were the most abundant natural enemies found with CRM The presence of 05 live Stethorus sp per leaf and 051 A longisetus per leaf was associated with the decline of CRM populations (15 eggs and 15 juvenile/adults per leaf) to trace levels in 45 weeks The use of neonicotinoid products can disrupt the predatory activity of Stethorus sp against CRM


Zootaxa ◽  
2007 ◽  
Vol 1395 (1) ◽  
pp. 33-58 ◽  
Author(s):  
KOMI K.M. FIABOE ◽  
MANOEL G.C. GONDIM JR ◽  
GILBERTO J. DE MORAES ◽  
CALLISTUS K.P.O. OGOL ◽  
MARKUS KNAPP

Surveys for predators of the tomato red spider mite Tetranychus evansi Baker & Pritchard on solanaceous plants were carried out in north-eastern and south-eastern Brazil to determine prospective species for the control of the pest in Africa. Surveys were carried out in areas identified as climatically similar to regions in Africa where T. evansi has been reported as a pest and where prospective natural enemies may be introduced. A total of 56,445 mites and insects were found in 330 samples collected from 20 different species of solanaceous plants. Tetranychus evansi was found in only three samples, on Solanum americanum Mill. and Lycopersicon esculentum Mill.. A total of 5,023 specimens of predatory mites, of at least 44 species, and 494 specimens of acarophagous insects, of at least three species were collected. The predominant predatory mites were (in decreasing order): Phytoseius guianensis DeLeon, Pronematus ubiquitus (McGregor), Asca sp., Paraphytoseius orientalis (Narayanan, Kaur & Ghai), Phytoseius woodburyii DeLeon, Amblyseius compositus Denmark & Muma, Homeopronematus anconai (Baker), Neoparaphytoseius sooretamus (El-Banhawy), Cunaxoides sp., Typhlodromus paraevectus Moraes & McMurtry, Typhlodromalus peregrinus (Muma) and Phytoseius cismontanus DeLeon. However, no predatory mites were found in association with T. evansi. Among the insects, although not the most abundant, Stethorus tridens Gordon seemed to be most promising, as it was found associated with T. evansi in all samples in which the latter was found. Feltiella sp. was the most abundant acarophagous insect found, but it was never found associated with the pest.


1988 ◽  
Vol 78 (4) ◽  
pp. 695-702 ◽  
Author(s):  
D. Agounké ◽  
U. Agricola ◽  
H. A. Bokonon-Ganta

AbstractRastrococcus invadens Williams has been the most important polyphagous pest of horticultural crops since 1982 in some West African countries. It originated in South-East Asia and was probably introduced on infested plant material. The pest has been reported up to 150 km north of the coast of Benin and 500 km north from the coast in Togo. Although the species is polyphagous, mango, citrus, breadfruit, banana, frangipani (Plumeria alba) and species of Ficus are among the most attacked hosts. Several indigenous natural enemies were identified, but their ability to regulate the populations of R. invadens is very low. The most important among the predators were the coccinellids Chilocorus nigrita (F.), Exochomus promtus Weise and E. troberti Mulsant and the lycaenids Spalgis spp. In Togo, an indigenous parasitoid, Anagyrus sp. ?nr aurantifrons Compere, has become adapted to the pest.


Acarologia ◽  
2021 ◽  
Vol 61 (1) ◽  
pp. 20-30
Author(s):  
Maicon Toldi ◽  
Elisete Maria de Freitas ◽  
Vinícius Leão da Silva ◽  
Monique Caumo ◽  
Júlia Jantsch Ferla ◽  
...  

The Brazilian Pampa presents a high diversity of fauna and flora within a mosaic of environments. The aim of this study was to evaluate the assemblages of predatory mites (Phytoseiidae and Stigmaeidae) in three different Pampa environments: Grassland shrub vegetation, Grazing Exclusions fenced for six years and Riparian Forest with tree vegetation. Phytoseiidae and Stigmaeidae were evaluated with a total of 324 plant sampled from nine sites in three environments. Twenty-two Phytoseiidae species and six Stigmaeidae species were found. Riparian Forest presented the highest abundance of predatory mites (243) and the greatest species diversity. Mites were more abundant in Grazing Exclusions (64) than in Grassland (25) environments, but species diversity was similar. In Riparian Forest, the most abundant species were Amblyseius tamatavensis Blommers, Amblyseius herbicolus (Chant) and Agistemus floridanus González-Rodríguez. Arrenoseius gaucho Ferla, Silva and Moraes and Zetzellia malvinae Matioli, Ueckermann and Oliveira were the most abundant in Grassland environment. Our results demonstrate that the Brazilian Pampa has a high diversity of predatory mites and mite communities seem to be affected by the type of environment, showing the importance of this ecosystem as a reservoir of natural enemies.


Acarologia ◽  
2020 ◽  
Vol 60 (2) ◽  
pp. 254-267
Author(s):  
Xiao-Duan Fang ◽  
Van-Liem Nguyen ◽  
Ge-Cheng Ouyang ◽  
Wei-Nan Wu

Citrus is the second largest fruit crop in Vietnam. Phytoseiid mites are important natural enemies of mite pests and small insects in citrus orchards. By examining the specimens collected from three citrus orchards in the Mekong Delta in the south of Vietnam, a new record of phytoseiid mite Amblyseius obtuserellus Wainstein and Begljarov, 1971 was found and two other species Amblyseius largoensis (Muma, 1955) and Euseius ovalis (Evans, 1953) were also obtained. Herein, they are re-described and illustrated based on the current specimens. A key for Amblyseiinae in Vietnam is also provided


2021 ◽  
Vol 80 (04) ◽  
pp. 142-144
Author(s):  
Carla BALIOTTE ◽  
Daniel A. AQUINO ◽  
Juan P. BOUVET ◽  
Gimena DELLAPÉ

The Psyllidae family is the most diverse within Psylloidea, with more than 1,300 species worldwide. Some psyllid species are important pests mainly of fruit trees, forest and ornamental plants. Despite being an economically relevant group, there are few studies on its biology, geographic distribution, natural enemies or host plant associations for many Argentinean psyllid species. This work records one species from Argentina for the first time, extends the distribution of another two psyllid species and provides information on host plants.


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