We do not use these to store personal information about you. Abundance and population dynamics of cacopsylla pyri. Intraguild predation among spiders and their effect on the pear psylla during winter. Psyllidae is one of the most economic insect in pear trees in egypt. Given that mating rates in some psyllid species are reduced when held in darkness krysan 1990, wenninger and. Role of cacopsylla pyri in the epidemiology of pear decline. Psyllidae on two resistant pyrus genotypes find, read and cite all the.
Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family. In this study, the hydroxycinnamate derivatives of s. 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. Click, drag, and drop to reorder files or press delete to remove any content you dont want. Opie young nymphs a few yellow eggs as well as droplets of honeydew can be seen arrowed cacopsylla pyri l. We compare sampling techniques and develop sampling methods for c.
Zaroven je tento skudce hlavnim vektorem puvodce fytoplazmoveho. Recent work has shown, however, that different populations with different transmission capacities might exist for. Cacopsylla pyri eggs white and nymphs grey remaining per leaf in the control, and treatments with release of a two a. You can merge pdfs or a mix of pdf documents and other files. Liberibacter solanacearum in the canary islands and psyllid. Tim belien department of zoology pcfruit vzw, belgium. Cacopsylla pyricola psylpcdocuments eppo global database. Psyllidae, is a key pest of pears throughout the world and may cause heavy economical. The life cycle of pear decline phytoplasma in the vector cacopsylla pyri has been studied.
Substrateborne vibrational communication in the vector of. Role of cacopsylla pyri in the epidemiology of pear decline in spain. Cacopsylla chinensik cacopsylla qianliyang and li, 10 chinensis li and yang, 081 92. What links here related changes upload file special pages permanent link page information wikidata item cite this page. Retrieved 20 april this can sometimes lead to deformation of the leaves. High population densities can cause premature leaf drop, which results in reduced flowering the following year. Trials by cacopsylla pyri, collected from pear decline infected orchards in turkey. Identification key for the central european cacopsylla species. The species, which causes the most damage in central europe, is cacopsylla pyri. The pear psyllid, cacopsylla pyricola foerster hemiptera. 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. All structured data from the file and property namespaces is available under the creative commons cc0 license. Controlling pear psyllids by mass releasing anthocoris. Over a period of 1 year, about 100 psyllids were collected monthly from pear trees, cv.
This page was last edited on 11 december 2019, at 12. Behavior vibrational communication between the sexes in. Opie indirect damage on pear sooty moulds developed on the honeydew excreted by nymphs to read this page in french. Stevia rebaudiana leaves are used as a zerocalorie natural sweetener in a variety of food products in asian countries, especially in japan. 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. One of a few species of cacop sylla that have a black spot on the inside edge of the forewing, but unlike c. Files are available under licenses specified on their description page. Pdf following the survey of the proposed and applied methods the washdown procedure has been evaluated to collect the pear psylla larvae cacopsylla.
Recommendation of the working group on the annexes of the. Identification of fruit tree phytoplasmas and their vector in bosnia and herzegovina eds. Download adobe acrobat reader free software to read pdf files. 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. Cacopsylla pyri field trial mean number l1l3 on 10 marked shoots 3005 0 100 200 300 400 500 600 check tracer 480 sc, 144 g a. These diseases cause severe growth abnormalities of pear trees. A high reduction in numbers of this pest was observed in winter 80. Overwintering females begin to lay eggs as early as in midfebruary, and the period of oviposition usually extends into late april. Twentyfour hydroxycinnamic acid derivatives of quinic and shikimic acid were detected, and 19 of them. Polyphenolic profile of pear leaves with different resistance. The genus includes most of the psylla harmful to fruit trees species. The pest was recorded for the first time on pear trees, pyrus communis l. Click add files and select the files you want to include in your pdf.
Intraguild predation among spiders and their effect on the. The past and present of pear protection against the pear psylla, cacopsylla pyri l. Natural enemies numbers increased with time and were higher in nontreated orchards. Characterization and quantification of hydroxycinnamate. Highlights cacopsylla pyri and natural enemy abundance was compared in treated and nontreated pear orchards.
The size of fruit is decreased and tree growth is diminished. General information about cacopsylla pyri psylpi eppo global database. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l. 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. Genetic analysis of resistance to azinphosmethyl in the pear psylla cacoppsylla pyri entomologica experimentalis et applicata, 96 159166. Psyllidae, in commercial orchards more effectively than other ladybird species nedve.
Management and control of insecticideresistant pear psylla. Cacopsylla pyri psylpioverview eppo global database. Opie adult feeding on the vein of a leaf of pear cacopsylla pyri l. The heteroptera, anthocoridae and miridae, were the predators whose populations were more related to the dynamics of cacopsylla pyri populations.
Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots skip to content. 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. Effects of kaolin on some biological properties of pear sucker cacopsylla pyri l. 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. How to merge pdfs and combine pdf files adobe acrobat dc. 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. Opie winter eggs laid on the underside of a leaf of pear cacopsylla pyri l. 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. 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. 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. 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. Genetic mapping of cacopsylla pyri resistance in an interspecific pear pyrus spp. Psylla pyri damages pear trees by sucking the plant sap.
This page was last edited on 1 december 2015, at 21. These results support the hypothesis that eay, ap15, pd and aclr mlos are identical serologic. Phytoplasma pyri is transmitted by cacopsylla pyri and cacopsylla pyricola. Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Since proper control of this pest is essential, better understanding of the complex plantpest relationship is mandatory. Cacopsylla is a large and difficult genus with genal cones and a pterostigma. Plant oils as oviposition deterrents against winterform females of. Mera skvrnita cacopsylla pyrije klicovym skudcem v produkcnich hrusnovych vysadbach po cele evrope bangels et al. Cacopsylla pyri, cacopsylla pyricola, and cacopsylla pruni, and also putative vectors like cacopsylla pyrisuga, cacopsylla bidens or cacopsylla affinis.
Thus, molecular tools for species identification or genetic differentiation of populations are needed. As these spiders belong to the same guild they can also disrupt. Over a period of 1 year, about 100 psyllids were collected monthly. Metodika ochrany hrusni proti mere skvrnite cacopsylla pyri. Psyllidae, is one of the most serious arthropod pests of pear. Psyllids were used for experiments on phytoplasma transmission both to healthy pyrus communis trees and to an artificial feeding medium.1289 374 460 1607 950 406 308 1400 890 26 464 617 1381 580 886 1583 1560 348 1492 1526 1064 864 509 364 19 295 954 1116 996 318 619 671 1615 675 580 1353 1614 1440 1266 1004 1234 302 481 1352 296 16 1398 1016