Cacopsylla chinensik cacopsylla qianliyang and li, 10. For two con secutive years, groups of insects caught monthly from. Mera skvrnita cacopsylla pyrije klicovym skudcem v produkcnich hrusnovych vysadbach po cele evrope bangels et al. Cacopsylla chinensik cacopsylla qianliyang and li, 10 chinensis li and yang, 081 92. Psyllidae, is one of the most serious arthropod pests of pear. Liberibacter solanacearum in the canary islands and psyllid. Thus, molecular tools for species identification or genetic differentiation of populations are needed. All structured data from the file and property namespaces is available under the creative commons cc0 license. Opie adult feeding on the vein of a leaf of pear cacopsylla pyri l.
In this study, the hydroxycinnamate derivatives of s. A high reduction in numbers of this pest was observed in winter 80. The past and present of pear protection against the pear psylla, cacopsylla pyri l. Cacopsylla pyri eggs white and nymphs grey remaining per leaf in the control, and treatments with release of a two a. The genus includes most of the psylla harmful to fruit trees species. We do not use these to store personal information about you. This page was last edited on 1 december 2015, at 21. We compare sampling techniques and develop sampling methods for c. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l.
Abundance and population dynamics of cacopsylla pyri. Cacopsylla pyricola psylpcdocuments eppo global database. Over a period of 1 year, about 100 psyllids were collected monthly from pear trees, cv. The obtained results show for the first time the presence of substrateborne vibrational signals produced by males and females during courtship behavior in this species, and allow a direct comparison with signals of congeneric species cacopsylla pyri linnaeus, 1758 hemiptera. Twentyfour hydroxycinnamic acid derivatives of quinic and shikimic acid were detected, and 19 of them. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family. Since proper control of this pest is essential, better understanding of the complex plantpest relationship is mandatory. The pest was recorded for the first time on pear trees, pyrus communis l. The heteroptera, anthocoridae and miridae, were the predators whose populations were more related to the dynamics of cacopsylla pyri populations. The size of fruit is decreased and tree growth is diminished. These results support the hypothesis that eay, ap15, pd and aclr mlos are identical serologic. Management and control of insecticideresistant pear psylla. The response of 160 european pear genotypes to the attacks of cacopsylla pyri in natural conditions of infestation was studied in the ex situ germplasm collection of the ivalsa institute cnr located in follonica grosseto, italy during three.
Recent work has shown, however, that different populations with different transmission capacities might exist for. Psyllids were used for experiments on phytoplasma transmission both to healthy pyrus communis trees and to an artificial feeding medium. As these spiders belong to the same guild they can also disrupt. Intraguild predation among spiders and their effect on the pear psylla during winter. One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using. Opie young nymphs a few yellow eggs as well as droplets of honeydew can be seen arrowed cacopsylla pyri l. Cacopsylla is a genus of bugs in the psyllidae family, the jumping plant lice.
Role of cacopsylla pyri in the epidemiology of pear decline in spain. Psyllidae on two resistant pyrus genotypes find, read and cite all the. Identification of fruit tree phytoplasmas and their vector in bosnia and herzegovina eds. Cacopsylla pyri behaviour on new pear selections for host. One of a few species of psylla that have a black spot on the inside edge of the forewing, and it is generally larger than in the previously very rare but expanding c. Given that mating rates in some psyllid species are reduced when held in darkness krysan 1990, wenninger and. Within the anthocoridae, anthocoris nemoralis was able to respond to psylla outbreaks, with a stronger response when the outbreak was in summer than when it was in autumn. Tim belien department of zoology pcfruit vzw, belgium. Natural enemies numbers increased with time and were higher in nontreated orchards. Intraguild predation among spiders and their effect on the. Overwintering females begin to lay eggs as early as in midfebruary, and the period of oviposition usually extends into late april. The pear psyllid, cacopsylla pyricola foerster hemiptera. The species, which causes the most damage in central europe, is cacopsylla pyri.
General information about cacopsylla pyri psylpi eppo global database. Trials by cacopsylla pyri, collected from pear decline infected orchards in turkey. Metodika ochrany hrusni proti mere skvrnite cacopsylla pyri. Characterization and quantification of hydroxycinnamate. The life cycle of pear decline phytoplasma in the vector cacopsylla pyri has been studied. Testing of alternative spray programs for controlling the. Vector species are present and widespread in most countries of the european union and readily spread the disease within an orchard and to orchards in the close vicinity, if infested planting material is introduced. High population densities can cause premature leaf drop, which results in reduced flowering the following year. Effects of kaolin on some biological properties of pear sucker cacopsylla pyri l. Highlights cacopsylla pyri and natural enemy abundance was compared in treated and nontreated pear orchards. Identification key for the central european cacopsylla species.
Behavior vibrational communication between the sexes in. Cacopsylla is a large and difficult genus with genal cones and a pterostigma. Over a period of 1 year, about 100 psyllids were collected monthly. The frequency of pear declinepositive insects and transmission of pear decline pd phytoplasma by cacopsylla pyri in spain has been studied. The effectiveness of spirotetramat in the control of pear psylla cacopsylla pyri on pear trees was investigated in five field experiments, carried out in years 2009. Zaroven je tento skudce hlavnim vektorem puvodce fytoplazmoveho. Psylla pyri damages pear trees by sucking the plant sap. These diseases cause severe growth abnormalities of pear trees. Cacopsylla pyricola forster is one of the most important pests of pear in north america, where several native predators have been considered for integrated pest management ipm programmes. The effectiveness of spirotetramat in the control of pear psylla cacopsylla pyri on pear trees was investigated in five field experiments, carried out in years 20092011. Psyllidae, is a key pest of pears throughout the world and may cause heavy economical.
Cacopsylla pyri psylpioverview eppo global database. Files are available under licenses specified on their description page. Phytoplasma pyri is transmitted by cacopsylla pyri and cacopsylla pyricola. You can merge pdfs or a mix of pdf documents and other files. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots skip to content. Psylla pyrarboris slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. How to merge pdfs and combine pdf files adobe acrobat dc. Ants, spiders and pilophorus gallicus were the main predators. Download adobe acrobat reader free software to read pdf files.
Dec 10, 2019 the obtained results show for the first time the presence of substrateborne vibrational signals produced by males and females during courtship behavior in this species, and allow a direct comparison with signals of congeneric species cacopsylla pyri linnaeus, 1758 hemiptera. Cacopsylla pyri, pear psylla, resistance, antiresistant strategies introduction psyllids are among the most serious pests in pear orchards, which have been intensively treated with pesticides. Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Psyllidae is one of the most economic insect in pear trees in egypt. Polyphenolic profile of pear leaves with different resistance. Substrateborne vibrational communication in the vector of. Genetic analysis of resistance to azinphosmethyl in the pear psylla cacoppsylla pyri entomologica experimentalis et applicata, 96 159166.
Polyphenolic profile of pear leaves with different. Opie winter eggs laid on the underside of a leaf of pear cacopsylla pyri l. Raddadi n, gonella e, camerota c, pizzinat a, tedeschi r, crotti e, mandrioli m, bianco pa, daffonchio d, alma a 2010 candidatus liberibacter europaeus sp. Click, drag, and drop to reorder files or press delete to remove any content you dont want. Cacopsylla pyri, cacopsylla pyricola, and cacopsylla pruni, and also putative vectors like cacopsylla pyrisuga, cacopsylla bidens or cacopsylla affinis. Retrieved 20 april this can sometimes lead to deformation of the leaves. Cacopsylla pyri, pear psylla, resistance, antiresistant strategies. One of a few species of cacop sylla that have a black spot on the inside edge of the forewing, but unlike c. Pdf genetic mapping of cacopsylla pyri resistance in an. Pdf measuring pear psylla population density cacopsylla pyri l. Psyllidae cacopsylla is a large and difficult genus with genal cones and a pterostigma. Recommendation of the working group on the annexes of the. Click add files and select the files you want to include in your pdf. Opie indirect damage on pear sooty moulds developed on the honeydew excreted by nymphs to read this page in french.
Pdf following the survey of the proposed and applied methods the washdown procedure has been evaluated to collect the pear psylla larvae cacopsylla. Plant oils as oviposition deterrents against winterform females of. Psyllidae, is one of the principal pests of pear pyrus spp. Behavior vibrational communication between the sexes in diaphorina citri hemiptera. Controlling pear psyllids by mass releasing anthocoris. This research deals with constitutive polyphenolic profiles in leaves of 22 pear cultivars of diverse origin p. What links here related changes upload file special pages permanent link page information wikidata item cite this page. Genetic mapping of cacopsylla pyri resistance in an interspecific pear pyrus spp.
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