Global ETD Search
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Showing 1 to 20 of 55 for “"Acari"”.
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<i>Neoseiulus fallacis</i> (Garman) (Acari: Phytoseiidae) as a potential biological control agent for spider mites (Acari: Tetranychidae) in Virginia vineyards
Outbreaks of spider mites (Acari: Tetranychidae) in vineyards have been increasing with the expansion of the industry in Virginia. Only three effective acaricides are registered on grapes and as resistance begins to occur, control options are limited. Biological control of spider mites by …
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Ricoseius loxocheles (ACARI: PHYTOSEIIDAE): relações biológicas e fontes alimentares
O café constitui um dos principais produtos agrícolas mundiais devido às grandes rendas econômicas que gera nos países onde é cultivado. Nesta cultura, comumente podemos observar pragas como Brevipalpus phoenicis e doenças como Hemileia vastatrix que podem ocasionar grandes perdas econômicas, caso …
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Systematics, Ecology, and Distribution of Water Mites (Acari: Parasitengonina)
The thesis addresses the following objectives: (1) establish the taxonomic identification, distribution, and ecological data of water mite species, family Hydryphantidae, genera Thyasides, Acerbitas, and Euthyas, parasitic on mosquitoes (Diptera: Culicidae) in North America; (2) establish an …
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Efficacy of Botanical and Mineral Oils on Willamette Mite (Acari: Tetranychidae)
Willamette mite (WM), Eotetranychus willamettei, is a major pest throughout most winegrape regions in coastal California and Oregon. These mites puncture leaf tissue with their chelicerae and cause loss of photosynthetically active area. Chemical control treatments on grape include nearly ten …
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Biology and ecology of the predatory mite Iphiseius degenerans (Berlese)(Acari: Phytoseiidae)
Iphiseius degenerans (Berlese) is a predatory mite belonging to the family Phytoseiidae. Phytoseiid mites are economically important predators of phytophagous mites and insects in greenhouse crops. Mass reared phytoseiid mites are commercially available and used, amongst others, against spider mite …
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Genetic Structure of Amblyomma Cajennense (Acari: Ixodidae) Populations Based on Mitochondrial Gene Sequences
Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) is a common tick species that has a large geographic distribution from the southern regions of the United States (Texas), to the Caribbean Islands, Central, and South America. This tick is a vector of the agent of Brazilian spotted fever, an …
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The Internal Anatomy and Histology of Adult <em>Antricola mexicanus</em> Hoffman (Acari: Argasidae)
<p>The anatomy and histology of the respiratory, nervous, reproductive, alimentary, excretory, and circulatory systems of adult male and female <em>Antricola</em> <em>mexicanus </em>Hoffmann are described. The respiratory system has a functional ostium which appears to be controlled by hemolymph …
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Effects of Nitrogen and Potassium Fertilizer on Willamette Spider Mite (Eotetranychus willamettei) (Acari: Tetranychidae)
The spider mite family (Tetranychidae) is a well known pest group in agriculture. Within this family, Willamette spider mite (Eotetranychus willamettei) causes physical harm and potential damage to grapevines (Vitis vinifera) along the central and north coast of California as well as Washington and …
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Samfélög mítla (Acari) og stökkmors (Collembola) í mismunandi gróðurframvindu, 20 árum eftir uppgræðslu á Geitasandi
Víða á Íslandi hefur ýmsum aðferðum verið beitt til að græða upp land og bæta virkni vistkerfa. Við mat á gildi uppgræðsluaðgerða hefur verið horft til fjölda eiginleika vistkerfa, þar á meðal þróunar gróðursamfélaga eða kolefnisbindingar. Undanfarin ár hefur nauðsyn þess að taka tillit til …
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Análisis de la interacción de acaricidas de nueva generación con los agentes de control biológico Typhlodromus pyri (Acari: Phytoseiidae) y Beauveria Bastiana (Hypocreales: Clavicipitaceae) para su correcta incorporacion al Manejo Integrado de Tetranychus urticae (Acari: Tetranychidae)
… Dentro de estos plaguicidas, se encuentran los acaricidas objeto de este estudio; abamectina, acequinocyl, bifenazato, etoxazol, fenpiroximato, spirodiclofen y spiromesifen. La nueva Directiva de uso sostenible de productos fitosanitarios, aprobada en 2010 y su transposición en el RD del mismo …
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Contribución al manejo integrado de ácaros tetraníquidos (Acari: Tetranychidae) que afectan a frutales de clima templado
… with the development of resistances against many acaricides, is the reason why the spider mites are currently one of the most important phytosanitary problems. Taking into account the importance to implement Integrated Pest Management (IPM) programs, developing researches to optimize its …
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Spatial Ecology and Remote Sensing in the Precision Management of Tetranychus urticae (Acari: Tetranychidae)in Peanut
… Because TSSM has developed resistance to many acaricides and there are restrictions on the use of pesticides, an alternative approach, such as precision pest management, is needed that would reduce the amount of pesticides that must be applied. This study was initiated to determine whether …
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Survey of Nasal Mites (Acari: Rhinonyssidae, Ereynetidae, Turbinoptidae) in Birds from Three States in the United States
<p>Avian nasal mites are obligate endoparasites that spend their entire life in the respiratory system of birds. In North America, bird nasal mites are represented by different unrelated families in three different orders of mites: Rhinonyssidae (Mesostigmata), Ereynetidae (Prostigmata), and the …
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Vitellogenesis in <i>Hyalomma dromedarii</i> (Acari: Ixodidae): A Model for Analysis of Endocrine Regulation in Ixodid Ticks
<p>The egg yolk proteins, vitellins, and their hemolymph precursors, vitellogenins, were characterized in the ixodid tick <em>Hyalomma dromedarii.</em> Three vitellins were identified. The high molecular weight vitellins, VN A and VN B, were composed of seven homologous molecular weight subunit …
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Serviços ecossistêmicos de provisão prestados pela caatinga: uma análise do uso e cobertura da terra do município de Acari
… has as its spatial focus the municipality of Acari, which, located in the interior of Rio Grande do Norte, currently forms part of the delimitation of the Seridó Desertification Center. The present work aims to evaluate how forms of land use and coverage influence the provision of ecosystem …
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A deeper look into the morphology and receptors found in the tick (Acari: Ixodidae) chemoperception structure, the Haller's organ
The Haller's organ is a sensory structure unique to ixodid ticks that assists in host seeking behaviors. Presented here are the results of a detailed comparative study of the morphology and the chemoperception gene expression of the Haller’s organ. The morphometrics study focuses on the three …
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