FAMILIA PSYLLIDAE PDF

June 23, 2020 0 Comments

Este subórden agrupa las familias más especializadas de Homoptera. Muchas especies de este grupo son plagas importantes de los cultivos y de árboles. Familia: Psyllidae. Subfamilia: Psyllinae. Familia: Triozidae; Familia: Aphalaridae. Superfamilia: Coccoidea. [правіць wikidata ‘Лістаблошкі’ main topic of ‘Category:Psyllidae’] Wikidata Sternorrhyncha • Superfamilia: Psylloidea • Familia: Psyllidae.

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Record of Diaphorina citri Hemiptera: Psyllidae in North West Argentina. Psyllidae para el Noroeste Argentino. The distribution of Diaphorina citri Kuwayama Hemiptera: Psyllidae is expanded to North West Argentina. Presencia de Diaphorina citri Hemiptera: Directory of Open Access Journals Sweden. The complete mitochondrial genome sequence of Diaphorina citri Hemiptera: The first complete mitochondrial genome mitogenome sequence of Asian citrus psyllid, Diaphorina citri Hemiptera: Psyllidaefrom Guangzhou, China is presented.

Pear psylla, Cacopsylla pyricola Hemiptera: Psyllidaeis a key pest of pear and is a vector of “Candidatus Phytoplasma pyri”, the pathogen associated with pear decline disease. Although commercial pear trees are grafted to Phytoplasma-resistant rootstock, a recent report indicated that many C.

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First record of Acizzia jamatonica Hemiptera: Psyllidae in North America: Acizzia jamatonica Kuwayama Hemiptera: Psyllidae is reported for the first time in North America.

Because the species is thought to feed exclusively on Albizia, it may prove to be an faimlia biocontrol agent against the invasive Albizia julibrissin Durazzini in the southeastern United States. First Record of Diaphorina citri Hemiptera: Psyllids were found in high numbers in citrus Citrus spp.

Rutaceae and orange jasmine Murraya exotica [L. Psjllidae trees within the Guayaquil-Samborondon-Duran conurbation; however, none was found during scoutings in the main citrus producing areas in coastal Ecuador. To the best of our knowledge, this is the first report of D. Psyllidae pest of Eucalyptus, native toAustralia and first recorded in Europe: Spain in and more recently in Italy.

The present paper dealswith recent research, carried out in central Italy, with new data on the distribution and biology of this species. Psyllidae probing behaviour on two Solanum spp. Piercing-sucking insects are vectors of plant pathogens, and an understanding of their feeding behaviour is crucial for studies on insect population dynamics and pathogen spread. This study examines probing behaviour of the eggplant psyllid, Acizzia solanicola Hemiptera: Psyllidaeusing the electrical penetration graph EPG technique, on two widespread and common hosts: Six EPG waveforms were observed: Results showed that A.

Feeding was enhanced on eggplant compared to tobacco bush which showed some degree of resistance, as evidenced by shorter periods of phloem ingestion, a higher propensity to return to the pathway phase once in the sieve elements and higher number of salivation events on tobacco bush. We discuss how prolonged phloem feeding could indicate the potential camilia A. Intercropping can reduce agricultural pest incidence, and represents an important sustainable alternative to conventional pest control methods.

Understanding the ecological mechanisms for intercropping could help optimize its use, particularly in tropical systems which present a famila number of intercropping possibilities. Citrus is threatened worldwide by greening disease huanglongbing, HLB vectored by the Asian citrus psyllid, Diaphorina citri Kuwayama Hemiptera: Control of HLB and citrus psyllid can be partially achieved through intercropping with guava, Psidium guajava L.

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We tested the hypothesis that guava olfactory cues affect psyllid behavior by altering the attractiveness of citrus through plant-plant interactions. In choice and no-choice cage experiments, psyllid settlement was reduced on citrus shoots that had been exposed to guava shoot odors for at least 2 h.

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In Y-tube olfactometer experiments, psyllids oriented to odors of unexposed, compared with guava-exposed, citrus shoots. These behavioral results indicate that a mechanism for the success of guava intercropping for sustainable, ecological disease management may be the indirect effect of guava on citrus attractiveness. For Permissions, please email: Morphogenesis of galls induced by Baccharopelma dracunculifoliae Hemiptera: Psyllidae on Baccharis dracunculifolia Asteraceae leaves.

Full Text Available The commonest insect gall on Baccharis dracunculifolia Asteraceae leaves is induced by Baccharopelma dracunculifoliae HemipteraPsyllidae.

hemiptera psyllidae con: Topics by

The gall-inducing insect attacks young leaves in both the unfolded and the fully expanded stages. Four developmental phases were observed in this type of gall: A single chamber was formed on the adaxial surface of the leaf; 2 A swelling phase, in which the folded leaf tissues thickened and the edges of the leaf drew closer together, narrowing the slit. In this phase the gall matured, turning succulent, fusiform and pale green. The single nymphal chamber was lined with white wax and was able to house from one to several nymphs; 3 A dehiscence phase, characterized by the opening of the slit to release inducers; and 4 A senescence phase, when the gall turned dark psylludae dry.

The dermal system of the mature gall was composed of a single-layered epidermis. The mesophyll was swollen, and the swelling was due mainly to hyperplasia of the parenchyma. The vascular tissues along the midrib vein were conspicuous and the perivascular fibers resembled parenchymal cells. The hypertrophied secretory cavities contained low lipophylic content. This gall does not form nutritive tissue, but salivary sheaths left by the inducers were observed near the parenchyma, vascular bundles and secretory cavities.

This study complements our current knowledge of gall biology and sheds further light on the plasticity of plant tissues stimulated by biotic factors.

Dispersion patterns and sampling plans for Diaphorina citri Hemiptera: The abundance and spatial dispersion of Diaphorina citri Kuwayama Hemiptera: Psyllidae were studied in 34 grapefruit Citrus paradisi Macfad.

Osbeck] orchards from March to August when the pest is more abundant in southern Texas. Although flush shoot infestation levels did not vary with host plant species, densities of D. The spatial distribution of D. Taylor’s power law fitted the data better than Iowa’s model. Based on both regression models, the field dispersion psyloidae of D. For the average density pzyllidae each life pdyllidae obtained during our surveys, the minimum number of flush shoots per tree needed to estimate D.

Projections indicated that a sampling plan consisting of 10 trees and eight flush shoots per tree would provide density estimates of the three developmental stages of D. A presence-absence sampling plan with a fixed precision level was developed and can be used to provide a quick estimation of D.

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The effects of host, geographic origin, and gender on the thermal requirements of Diaphorina citri Hemiptera: Diaphorina citri Kuwayama Hemiptera: Psyllidae is the vector of the bacteria that causes citrus greening and is considered one of the world’s most important citrus diseases.

We examined how host, geographic region, and gender affect the thermal requirements of D. Host plants for D. To study the influence of geographic origin on thermal requirements, we studied D. The duration and survival of the development stages and the duration of the total development egg-adult did not differ significantly on the different hosts, but it did vary with temperature.

The thermal requirements for this species collected from the two climate regions were identical; males and females also had the same thermal pslylidae. Psyllidae and Bactericera cockerelli Hemiptera: We used two methods, namely fluorescence in situ hybridization and quantitative polymerase chain reaction qPCRto estimate relative abundance of Carsonella in bacteriocytes and whole bodies of psyllids, respectively.

Using these two methods, we compared Carsonella populations between female and male psyplidae. Estimations using fluorescence in situ hybridization indicated that Carsonella was more abundant in bacteriocytes pslylidae female C. Analyses by qPCR using whole-body specimens indicated Carsonella was more abundant in females than in males of both psyllids. Using fluorescence in situ hybridization, Carsonella was observed in ovarioles of newly emerged females and formed an aggregation in the posterior end of mature oocytes.

Results of our study indicate that female psyllids harbor greater populations of Carsonella than do males and that sex should be controlled for in studies which require estimations of Carsonella populations. Psyllidae is the vector of citrus greening Huanglongbing bacterium and the most serious impediment to citrus culture.

Classical biological control of this psyllid vector should contribute to suppress their population. This research was conducted to determine the performance of Menochilus sexmaculatus Fabricius Coleoptera: Coccinellidae when they were fed with D.

The larval performance index of M. Aphididae diet was 1. Employing the exclusion procedure under field condition,M.

These findings showed that theM. Psyllidae merupakan kelompok Psyllid yang menularkan penyebab penyakit Huanglongbing yang sangat berbahaya pada tanaman jeruk. Pengendalian hayati klasik telah banyak memberikan kontribusi dalam pengendalian di lapangan. Penelitian ini dilakukan untuk melihat penampilan Menochilus sexmaculatus Fabricius Coleoptera: Coccinellidae dengan pakan D. Indeks penampilan larva M. Menggunakan metode eksklusi pada kondisi. Evaluation of six different groups of insecticides for the control of citrus psylla Diaphorina citri Hemiptera: Full Text Available Studies psylidae the efficacy of different insecticides against citrus psylla, Diaphorina citri Hemiptera: