Insecticidal potential of clove essential oil and its constituents on cacopsylla chinensis hemiptera. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family. Seasonal variation in susceptibility of the pear psyllid. The second individual morphologically identified as c. The dynamics of the adult population of pear psylla. The model included a timedistributed delay and was based on authors. Nymph development takes place between march and the end of april. Molecular identification of two vector species, cacopsylla. Hemiptera psyllidae, is known in europe for its extended infestations which.
The fact sheets contain information on name, synonyms, distribution and host plants as well as illustrations ofadultnymph headforewingparameredistal portion of aedeagus. The psylloidea psyllids or jumping plant lice are small plantfeeding insects that form the group called sternorrhyncha t ogether with aphids, phylloxerans, scale insects and whiteflies. They are tebufenpyrad as active matter, sodium lauryl sulfate sls as anionic surfactant, modified starch, dextrin powder and some fillers. Three insect growth regulators igrs diflubenzuron, pyriproxyfen and teflubenzuron, and an aminhydrazine derivative amitraz, were evaluated singly and in combination with summer oil 1%. Unraveling the host plant alternation of cacopsylla pruni. Dispersion patterns and sampling plans for diaphorina citri hemiptera.
Romagna region, journal of applied entomology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. This univoltine species is linked to some rosaceae maloideae, such as crataegus, malus and pyrus spp. Ishs xxx international horticultural congress ihc2018. Here you can download as pdf and print fact sheets for the 15 central european cacopsylla species associated with rosaceae. Psyllidae, offers an opportunity for sloweracting fungal entomopathogens because it is a foliage feeder that does not directly damage fruit, allowing time for spores to germinate, infect, and kill psyllids before damage occurs.
Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Pear psylla is very resistant to most insecticides and is difficult to control. The new generation adults migrate onto conifers around midjune and. The past and present of pear protection against the pear. Jun 20, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Clipping is a handy way to collect important slides you want to go back to later. Cacopsylla pyri wikispecies, free species directory. Molecular test to assign individuals within the cacopsylla. Pdf the past and present of pear protection against the pear. The life cycle of pear decline phytoplasma in the vector cacopsylla pyri has been studied. The past and present of pear protection against the. Psyllidae and is considered as a biological control agent against this pest. Processed kaolin may be an alternative to broadspectrum insecticides used against european pear sucker, cacopsylla pyri l. Processed kaolin as an alternative insecticide against the.
More than one waveform occurred in the same tissue. Mar 02, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l. Documents about cacopsylla pyri psylpi this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Although cacopsylla pyri forster and cacopsylla pyricola linnaeus have long been considered as more significant pests of pear trees around the world, cacopsylla permixta burckhardt and hodkinson is the most significant pest in some parts of iran, especially in pear gardens of karaj. Text is available under the creative commons attributionsharealike license. This page was last edited on 1 december 2015, at 21. The genus includes most of the psylla harmful to fruit trees species. Oct 30, 2014 accessibility books library allowing access to top content, including thousands of title from favorite author, plus the ability to read or download a huge selection of books for your pc or smartphone within minutesaccess website over for all ebooks. Frequency and seasonal distribution of pear psylla. Genetic analysis of resistance to azinphosmethyl in the pear psylla cacoppsylla pyri entomologica experimentalis et applicata, 96 159166.
Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots. The psylla was equally infective throughout the experimental period. Psyllidae, and its natural enemies were sampled on pears in antalya province during the years. Insecticidal potential of clove essential oil and its. Oct 14, 2005 the possible transovarial transmission of two phytoplasmas, candidatus phytoplasma mali and candidatus phytoplasma prunorum, through their respective psyllid vectors cacopsylla melanoneura and cacopsylla pruni, was investigated. Possible phytoplasma transovarial transmission in the. Stenorhyncha, psyllidae by juvenile hormone analogues. Plant sap feeding insects like psyllids are known to be vectors of phloem dwelling bacteria candidatus phytoplasma and ca. The excess honeydew produced by the insects coats the leaves, covering up the stomataand encourages the growth pyrii sooty mould. Efficacy of different insecticides and a repellent against.
Effects of kaolin on some biological properties of pear. During the years 199192, the dynamics of the adult population of cacopsylla pyri l. This page was last edited on 30 january 2014, at 14. Media in category cacopsylla pyri this category contains only the following file. The male of banasa chaca thomas is described with emphasis on external and internal genitalia and the female internal genitalia is described. Natural enemies of the pear psylla cacopsylla pyri in treated vs. Tebufenpyrad 20 wp be effective on the cacopsylla pyri pest to protect the pears. Cacopsylla melanoneura forster, one of the most common psyllids in italian apple orchards, is known as a vector of ap in northwestern italy, while it was shown not to transmit this disease in germany and neighbouring countries. One of a few species of cacop sylla that have a black spot on the inside edge of the forewing, but unlike c. It is a pest of pear trees, sucking the sap, damaging the foliage, flowers and fruit and diminishing the crop. The frequency of pear declinepositive insects and transmission of pear decline pd phytoplasma by cacopsylla pyri in spain has been studied. Both primers failed to amplify dna from representative species of the coccinellidae, chrysopidae, hemerobiidae. Spread by vectors is generally only over a short distance, for example from tree to tree or from wild hosts in the near. Documents about cacopsylla pyricola psylpc this website uses cookies our website uses cookies to ensure that we give you the best possible online experience.
Each epg waveform was histologically correlated to tissues reached by stylet tips. Photos of cacopsylla pyri psylpi this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Kocourek and others published management and control of insecticideresistant pear psylla cacopsylla pyri find. The psyllid cacopsylla melanoneura is considered one of the vectors of candidatus phytoplasma mali, the causal agent of apple proliferation disease. Polyphenolic profile of pear leaves with different. Psyllidae cacopsylla is a large and difficult genus with genal cones and a pterostigma. Pdf functional response of anthocoris nemoralis hemiptera. Psyllidpictorialkey of cacopsylla on rosaceae in central european. In contrast, the identity between the sequence of the c. Opie indirect damage on pear sooty moulds developed on the honeydew excreted by nymphs to read this page in french.
The damages of cacopsylla pyri on pears articles solver. Finally, in order to ascertain that the diagnostic pcr amplified only c. The pear psylla cacopsylla pyricola has two morphologically distinct adult stages. Ii international symposium on innovative plant protection in horticulture effects of kaolin on some biological properties of pear sucker cacopsylla pyri l. Pdf on feb 15, 2012, stefano civolani and others published the past and present of pear protection against the. To make tebufenpyrad 20 wp needs some materials ingredients. Measuring pear psylla population density cacopsylla pyri l. We do not use these to store personal information about you. Psyllidae, is one of the most serious arthropod pests of pear. The possible transovarial transmission of two phytoplasmas, candidatus phytoplasma mali and candidatus phytoplasma prunorum, through their respective psyllid vectors cacopsylla melanoneura and cacopsylla pruni, was investigated. Cacopsylla pyri psylpidocuments eppo global database.
Read comparative toxicities of some insecticides to cacopsylla pyri l. No brief intracellular punctures were observed during stylet penetration of c. May 12, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. This research deals with constitutive polyphenolic profiles in leaves of 22 pear cultivars of diverse origin p. A field trial was carried out to evaluate the efficacy of several selective insecticides for the control of pear psyllacacopsylla pyri l. Current control strategies against this pest in iran generally involve five or six insecticide treatments each. The primers amplifying the 188 bp fragment amplified all four psyllid species tested, whereas the primers designed to amplify the 271 bp fragment did so exclusively for c. Jiewen wang, insecticidal potential of clove essential oil and its constituents on cacopsylla chinensis hemiptera. Using a slidedip bioassay, psylla pyricola forester from intensively sprayed, minimally sprayed ipm, recently abandoned, and longabandoned pear orchards in the hood river, rogue river, and willamette valleys of oregon were surveyed for resistances to azinphosmethyl, endosulfan, perthane, and fenvalerate.
Ecological and genetic differences between cacopsylla. Effectiveness of azadirachtin neemazal ts in controlling pear psylla cacopsylla pyri and european red mite panonychus ulmi dejan marcic, irena ogurlic, mirjana prijovic and pantelija peric institute of pesticides and environmental protection, banatska 31b. All structured data from the file and property namespaces is available under the creative commons cc0 license. Role of cacopsylla pyri in the epidemiology of pear decline in spain. Psyllids were used for experiments on phytoplasma transmission both to healthy pyrus communis trees and to an artificial feeding medium. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family psyllidae. Liberibacter, plant pathogens which cause severe diseases and economically important crop damage. Dna samples extracted from groups of 210 pomelo psyllid nymphs of all stages and from leaves of lemon plants were analyzed with nestedpcr in order to detect candidatus liberibacter asiaticus las. Role of cacopsylla pyri in the epidemiology of pear decline. Files are available under licenses specified on their description page. Sep 18, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Some univoltine psyllid species have a particular life cycle, within one generation they alternate two times between different host plant species.
In order to investigate the effects of plant varieties on predation of c. Summary the life cycle of pear decline phytoplasma in the vector cacopsylla pyri has been studied. Different life stages of the progeny of infected female psyllids were analysed by pcr detection of. Management and control of insecticideresistant pear psylla cacopsylla pyri franti sek kocourek and jitka stara research institute of crop production, drnovska 507 praha 16106, czech republic email. Cacopsylla pyricola psylpcdocuments eppo global database. Originating in europe and asia, it has spread to north america. The past and present of pear protection against the pear psylla. Control measures are directed specifically at controlling pear psylla and require accurate and timely information about insect densities in the orchard. At regular intervals during the year, estimates were obtained of the size of the population of males and females, percentage gravid females, sex ratio, number of eggs per gravid female and daily rate of oviposition.
Continuing to use this website means you agree to our use of cookies. Highlights epg is the best technique to study plant penetration activities by cacopsylla pyri. Different life stages of the progeny of infected female psyllids were analysed by pcr detection of phytoplasma dna. Lethalconcentration lc 50 values showed resistance levels from 12 to 41fold to. Now customize the name of a clipboard to store your clips. Biological control insect predators, such cacopsulla anthocoris spp. Since proper control of this pest is essential, better understanding of the complex plantpest relationship is mandatory. A chalcid wasp is an important parasite of the pear psylla in many areas. For two consecutive years, groups of insects caught monthly from march to october were used for transmission trials.
Cacopsylla pyri behaviour on new pear selections for host. Cacopsylla pyri psylpioverview eppo global database. Comparative toxicities of some insecticides to cacopsylla. The past and present of pear protection against the pear psylla, cacopsylla pyri l. Anthocoridae is one of the most prominent predators of the pear psylla, cacopsylla pyricola forster hemiptera. Remove sucker shoots during midsummer to deprive the insects of favored food sources after the main leaves have hardened. Phenological model of pear psylla cacopsylla pyri request pdf. Cacopsylla is a genus of bugs in the psyllidae family, the jumping plant lice. This page was last edited on 11 december 2019, at 12.
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